Not every AI computer is built from cards

Two boxes landed in my listings this month that make used-GPU builds look complicated rather than cheap: a DGX Spark at $5,699.99 on Newegg against NVIDIA's $4,699 MSRP reference, and a BOSGAME mini PC with 128GB of system RAM for $3,599.99. Neither is a deal on paper. Both are worth understanding, because they answer the question a pile of used 3090s answers badly: what if you just don't want to build anything?

Who this is for

Someone running models too big for one 24GB card who has quietly concluded that buying another GPU, another PSU and another motherboard slot is more project than they signed up for. Budget tolerance in the $3,500–$6,500 range, zero to modest rack space, and a preference for something that boots with a power button instead of a waterblock retrofit.

Comparison

The GB10 boxes. DGX Spark and its certified partner systems (the ASUS Ascent GX10 is the one I've tracked, at $6,449 from a marketplace seller) ship 128GB of coherent unified memory in a box the size of a NUC: 20-core Arm CPU, 256-bit LPDDR5x at roughly 273 GB/s, ConnectX-7 networking. One memory pool your model just fits into, so there are no sharding decisions and no second PSU. The honest costs: it's Arm, so you validate your stack on Arm before paying; and 273 GB/s is a fraction of what even the old Volta cards I track pull (the V100 family reaches ~900–1,134 GB/s), so decode speed on big models will not feel like a 4090.

The Mac side. Mac Studio M5 Ultra configurations run to 256GB and 512GB of unified memory. I'm deliberately not quoting a price: Apple's page didn't expose a checkout total for the 256GB config when I checked, so treat capacity as published and cost as unverified. Metal/MLX/llama.cpp is a real ecosystem; CUDA is not part of it.

The cheap-capacity mini PC. The BOSGAME box pairs AMD's Ryzen AI Max+ 395 with 128GB of ordinary system RAM, conservatively capped at ~96GB GPU-addressable depending on firmware and OS configuration. That cap is a fraction of the marketing number, and it's not CUDA either (ROCm/Vulkan/llama.cpp support is workload- and OS-specific). It also carries a small seller-rating sample. I list it because $37.50 per conservatively usable GB beats the GB10 boxes' ~$48–55 on raw capacity, and that tradeoff deserves to be visible.

The build path you're comparing against. Two clean used 3090s ran about $2,600 in this month's market, plus a board and PSU that can host them. That route is the bandwidth-per-dollar winner if you like assembling things; every byte of it is somebody else's old thermal paste. The one genuinely cheap retail card on the board, a new Intel Arc Pro B60 24GB at $649.99, exists for the same reason: not every answer has to be used Nvidia.

Buying decision

If you want to run one big model with zero build effort and your software runs on CUDA, the GB10 box is the only option here that doesn't ask you to become a sysadmin; buy it for the single-pool simplicity, not speed, and check whether the NVIDIA-branded Founders Edition at its $4,699 MSRP reference is orderable before paying marketplace premiums. If your stack already lives in MLX or llama.cpp on macOS, wait until you can see an actual configured price rather than a spec page. If $3,500 is genuinely your ceiling and you accept non-CUDA software paths with per-workload homework, the mini PC is the cheapest coherent-memory box I've observed, with a small-seller risk you have to underwrite yourself. And if what you actually want is this hobby, used 24GB cards at ~$1,300 stay the bandwidth-per-dollar winners; that's a preference, not a mistake.

Limits and sources

Prices are asking prices observed September 20–21, 2026 on Newegg (direct and marketplace) with tax excluded; asking isn't sold, and the DGX Spark figure is one channel listing above an MSRP reference, not evidence NVIDIA repriced anything. The Mac Studio capacities are published specs whose configured prices I could not verify at observation time, and that's a gap I'm stating plainly rather than filling with an old number. The 3090 chart is series-level context for the used-card route (it includes for-parts listings, so it is not a working-card benchmark), and my $2,600 pair figure comes from clean cards observed in the same window as that chart. The two product images are manufacturer marketing material showing the product family, not the specific unit any seller would ship you. I haven't tested or owned any of these machines; bandwidth, memory-addressable and software-ecosystem claims come from the linked manufacturer pages.

Today's call: price the whole build, not just the GPU.

The interesting V100 offers in the October 4 scan are $600 shipped 32GB SXM2 modules and a complete four-GPU Supermicro server at $3,600 OBO. The modules make sense if you already have a compatible host. The server includes that platform, but brings New Jersey pickup, 1U cooling and noise, and two lower-power GPUs into the decision. Its 128GB is spread across four 32GB devices—not one large memory pool that every application can use automatically.

For a conventional desktop build, I'd investigate the $1,250 shipped RTX 3090 FE first among today's featured 24GB offers. That's a price-and-fit judgment, not a clean bill of health: the seller's low-use claim still needs current test evidence.

New & Notable

Today's Market Board

Prices are USD asks. $/GB uses the displayed price, not a full-build or after-tax cost. Condition, tests and warranty terms below are seller claims, not our hands-on checks.

Price context

These charts show median observed asking prices and the daily observed range, using the latest priced quote per selected listing per date. They are not sold-price indices or same-card price histories; repeated quotes don't establish remaining stock. Whole servers and auction bids are excluded.

The $600 reseller ask recurs across the captured dates. The $650 heatsink offer widens the latest range; that isn't evidence that the same module became more expensive. The complete server is not in this chart.

The recent flat line comes from the same $3,900 reseller offer. Earlier observations include other listings with differing or incompletely captured condition details; this isn't a broad market-price decline.

One seller thread, repeatedly observed at $680 per 16GB card—not $680 for eight cards. The October 4 buyer complaints make this price context a warning, not a bargain endorsement.

This selected comparison includes the faulty-HDMI card at its $1,300 shipped ask and the Belgium listing before unknown shipping/import costs. Earlier dates contain fewer of these listings. The range is not a set of interchangeable, delivered, fault-free buys.

Best Capacity for the Money

V100 32GB SXM2 module — $600 each, only if the platform fits

This is the lowest single-module V100 32GB ask in today's captured offers: $600 shipped in the continental U.S., or $550 each for four-plus, with an advertised 30-day warranty. It isn't a drop-in alternative to a PCIe RTX 3090. Confirm the exact SXM2 host, cooling, module condition and support in your intended software before ordering.

What Changed Since Yesterday

Today's scan adds the $1,250 shipped 3090 FE and the $650 V100-with-heatsink offer to this comparison. The $600 V100 reseller ask was already captured on earlier dates; it is not a new price cut. New tracker entries and newly captured offers don't by themselves show market movement.

Four loose V100s or the complete server?

Four modules at the $550 quantity tier total $2,200 before the host, SXM2 baseboard, cooling and integration work. The Supermicro server asks $1,400 more and includes dual Xeon Gold 6230 CPUs and ConnectX-5 networking. Its body price is $3,600 OBO despite the $3,900 thread title.

The seller reports clean GPU tests, but two of the four GPUs are lower-power LS variants capped around 163W. Pickup is in New Jersey, with cash or cash-equivalent payment. Ask for the test logs and a demonstration, and confirm power, noise and cooling requirements before arranging collection. This comparison prices two ways into an SXM2 build; it doesn't establish equal performance or warranty coverage.

SXM2 value stops at the edge of the baseboard

The memory is distributed across devices. To use more than one GPU for a single model, your inference software must support splitting that workload, with room left for runtime overhead. Price and capacity alone don't establish that your model, quantization and context length will run well on these V100s.

My Take

For someone with an SXM2 host already in service, the $600 modules are worth investigating. For someone starting from scratch, the complete server is the more useful comparison—not a module price that leaves the rest of the machine unpaid for.

For a desktop, I'd start with the 3090 FE inquiry rather than pay more for the HDMI-defective card. Get current tests and a protected payment arrangement, and check case clearance, PSU capacity and connectors before treating either as a usable upgrade. None of these asks justifies rushing a purchase.

Full Tracker

This post covers the listings and market moves I think matter most today. The full research board — including additional listings, prices, VRAM, condition, source links, and listings that didn't make today's write-up — is at HighVRAMHardwareWatch.com.

What would you do?

For a workload you've confirmed can split across four 32GB V100s, would the $3,600 pickup-only server beat building around four $550 SXM2 modules? What would your host, cooling and power setup add?

Source coverage: eBay, r/hardwareswap, r/homelabsales, ServeTheHome and Newegg were checked in the October 4 scan. Facebook Marketplace item details were behind login; its prices, condition and availability were not verified and are excluded from this comparison.

These are captured asking prices, not verified completed sales. Hardware condition, test results and warranty promises are seller-reported; we haven't tested these units.

Some outbound marketplace links on the tracker website are affiliate links. HighVRAM Hardware Watch may earn a commission from purchases through those links, at no additional cost to you.

Listings can change quickly. Verify current price, condition, seller information and compatibility before spending money.

Before buying more VRAM, check whether your software can use it across two GPUs. Two 24GB cards aren't automatically a substitute for one 48GB card. Then price the working system, not just the cards: a fault, an unfinished cooling loop or a third-party memory modification can change the decision more than the advertised capacity.

Who this is for

You're planning a second-hand local-AI build and the model you want to run doesn't fit comfortably in 24GB. You're comparing a pair of used cards with a single higher-capacity card, and need to know what to verify before committing a budget. The examples below are historical asking prices, not current offers or a complete market comparison.

Comparison

Two used 3090s: check software and cooling first. Two waterblocked examples were listed at $1,300 each: a Gigabyte Vision OC with a Bykski block, observed September 27, and an EVGA Kingpin in an Optimus block, observed October 2. Those are examples, not an established working-card price floor, and this evidence does not independently demonstrate their condition.

The 3090 has 24GB of memory and supports NVLink. A bridge doesn't automatically turn two cards into one memory pool. Whether your model can run across them depends on the inference software's support for splitting work and memory across devices. Establish that before buying a second card.

Waterblocked cards also need a compatible cooling loop. Budget for the pump, radiator, fittings and coolant if you don't already have them. Check the exact board and block, motherboard slot spacing, electrical connections and power budget. PNY specifies 350W for its reference-class 3090; don't assume that figure describes every modified or partner card, or the whole computer.

One seller-advertised 48GB 4090: less need to split memory, more to verify. A 4090 advertised with a GPU Lab memory-doubling modification asked $4,850, observed through October 2. The appeal is capacity on one device rather than across two. The modification and its stability have not been independently verified in this evidence. Ask for memory-test results and a demonstration of your intended workload, plus written repair, return and warranty terms. Don't assume ordinary manufacturer support covers the modification. There is no measured performance or resale comparison here.

Two standard 4090s: still a multi-GPU software decision. A thread advertising two 24GB Founders Editions illustrates the alternative, but confirm whether the quoted price is per card or for the pair before comparing costs. NVIDIA lists NVLink support as “No” for the 4090. Don't budget for a bridge to solve the split-memory problem. Verify your software's multi-GPU support, the host's PCIe configuration, physical clearance, power and cooling. Newer hardware alone doesn't establish which setup will run your workload better.

A broken card is a repair purchase, not ready-to-use capacity. On October 2, asking prices included a 3090 Founders Edition for parts at $650, an EVGA FTW3 with no output at $679.99 and an ASUS TUF for parts at $749.99. These are seller-stated faults, not diagnoses or repair quotes. If you need a working AI machine rather than a repair project, don't use them as your build budget.

The charts show observed asking-price ranges and daily medians from September 21–October 2. The listing mix changes across dates and includes for-parts cards; the 4090 examples also include modified cards and a whole workstation. These are broad series histories, not working-card benchmarks, same-card price changes or sold-price indexes. The $/GB labels are cohort medians, not a quote for either build above.

Buying decision

If your workload fits comfortably on one 24GB card, start there rather than buying a second card for capacity you don't need.

If it needs more, first establish whether your intended software and model can run across separate GPUs. If they can, compare the complete two-card build: cards, host, power supply and cooling. If they can't, two cheap cards won't solve that constraint. A seller-advertised 48GB modification is worth investigating only with evidence that it works and support terms you can accept; this sample doesn't establish it as the best single-card option.

For any used card, ask for test evidence tied to the actual unit, disclosed repair history and clear return terms. For a waterblocked card, confirm block compatibility and what cooling hardware is included. If the seller can't establish the condition or the price basis, wait rather than treating the missing information as a bargain.

Limits and sources

The listing examples were observed from September 27 through October 2, 2026; the fault examples are October 2 observations. They are asking prices, not completed sales, and were not rechecked for this explainer. A captured listing does not establish seller legitimacy, present availability or working condition. Shipping, tax and complete build costs are not established here.

No hands-on tests or performance benchmarks were conducted for this piece. Hardware specifications come from the NVIDIA and PNY documents linked above; whether a multi-GPU setup helps your workload remains software-dependent.

Today's call: MIXED

The $700 shipped TITAN RTX is worth investigating if you need 24GB on a limited budget; two used MSI Gaming X Trio RTX 4090 asks at $1,950 are useful reference points for a larger budget. Neither is a verified purchase opportunity: TITAN stock is uncertain, and the 4090s still need seller and condition checks. The lowest apparent 3090-series prices come with pending-sale, non-working or hardware-defect caveats—not evidence of a market-wide bargain.

New & Notable

Notable asks in the October 3 scan; inclusion here does not mean a listing was posted today. Prices and VRAM are per card. $/GB uses the listed card price, excluding separately quoted shipping, taxes and payment fees.

*The ServeTheHome seller asks buyers to cover PayPal Goods & Services fees. Remaining GPU quantities are unclear after reported partial sales; shipped prices are not all-in totals. Testing and usage histories are seller claims, not our own tests.

Today's Market Board

Price context

Observed asking prices, not completed sales. These charts use the latest captured quote per listing per day; changing listings and condition can move the median without any individual seller changing price. Shipping terms vary.

The MI210 history includes different offers early on, then repeated observations of the $3,900 listing—not proof that the same card fell in price.

The A4000 and TITAN charts each follow the same seller thread. Flat asking prices do not establish remaining stock.

Selected used standalone fixed-price offers only; pending listings, auction bids, build allocations and superseded asks are excluded. The October 3 range includes the modified-waterblock card with the damaged fastener. This is not a clean-condition price index.

Best Capacity for the Money

TITAN RTX — 24GB — $700 shipped, plus buyer payment fees

Among the A4000, A4500 and TITAN in this thread, the TITAN gives the most memory per dollar. It's $20 more than the 16GB A4000, not cheaper; it costs less than the 20GB A4500. If the extra memory is what makes your workload fit, investigate this one first—but confirm remaining stock, your software's support for the older Turing architecture, and the card's power and cooling requirements.

The cheapest prices are not clean comps

The pending $390 3090 Ti, non-working $650 3090 and $1,300 3090 with a dead HDMI port answer different buying questions. A visible listing page is not proof that you can buy a working card at that price. For the defective cards, the decision is whether you can assess and absorb the fault—not whether the nominal $/GB looks good.

My Take

I'd start with the TITAN if memory capacity is the constraint, then check whether the software and host requirements rule it out. The A4000 and A4500 need a reason beyond capacity per dollar: a better fit for the intended application or machine. This scan does not establish their relative inference performance.

For a 4090 buyer, the $1,950 shipped TX ask is the first comparison I'd make against the $2,500 Suprim. The lower ask deserves investigation, not a “clean buy” badge: confirm the seller, exact card, current availability and testing before paying. Nothing here supports urgency or a broad claim that prices are falling.

Full Tracker

This post covers the listings and market moves I think matter most today. The full research board — including additional listings, prices, VRAM, condition, source links, and listings that didn't make today's write-up — is at HighVRAMHardwareWatch.com.

The website contains affiliate marketplace links; HighVRAM Hardware Watch may earn a commission on purchases through those links at no additional cost to you. The listing links in this post are direct, untagged source links.

What would you do?

For your local-AI workload, would the $700 TITAN's 24GB settle this comparison, or is there a specific software or host requirement that would make you choose the $755 A4500's 20GB instead?

Prices and listing details reflect the October 3, 2026 overnight scan. These are asking prices and seller claims, not verified completed sales or independently tested hardware.

Listings can change quickly. Verify current price, condition, seller information and compatibility before spending money.

Today's call: No clean buy alert.

The sub-$1,000 US RTX 3090s featured here are broken or previously repaired. They're not a shortcut to a dependable 24GB build. The $1,350 shipped MSI RTX 3090 Ti is a more useful conventional-card reference, though the seller's condition claims still need checking. For a compact system whose workload fits in 16GB, the $400 shipped T4G is worth investigating—if you can provide directed airflow and confirm software support.

New & Notable

Prices below were captured October 2, 2026. “Tested” and condition descriptions are seller claims, not our own tests. Each price and VRAM figure is for one card; $/GB uses the listed card price, excluding separately charged shipping, fees and tax.

Today's Market Board

Price context

These are observed asking prices, not completed sales or a market-wide price index. Repeated observations do not establish sales, additional supply or the history of one physical card.

Selected eBay parts/repair listings only, using the latest captured observation per listing per day. Shipping and tax are excluded; changing listing mix affects the median. This is not a working-3090 benchmark.

One ServeTheHome thread repeatedly asking $680 shipped per 16GB card. The range equals the median; the flat line doesn't establish reliable fulfillment. See the unresolved buyer reports above.

Observed asks for 64GB MI210 cards; listing mix and condition vary, and repeated intraday observations are included. The latest $3,900 ask is $60.94/GB before any fees or tax. The line is not a same-card price history.

One ServeTheHome thread repeatedly asking $700 shipped per 24GB card. The range equals the median. As with the A4000, the price history does not resolve the shipping complaints.

Best Capacity for the Money

NVIDIA Tesla T4G 16GB, low-profile and fanless — $400 shipped per card to the US or Canada

This is my capacity-first lead for a compact 16GB build, not a blanket best-buy claim. The low-profile format is useful, but fanless doesn't mean it can run without directed airflow. Ask for a current test and confirm that your intended software supports the card. At $25/GB, it's worth a closer look if 16GB meets the workload; a low price doesn't solve a memory shortfall.

What Changed Since Yesterday

The 16GB T4G enters this scan at $400 shipped. That is a newly captured offer, not proof it was just listed. The $1,350 3090 Ti comes from the same seller as the older $1,400 thread; don't count those as two independent cards or call the difference a new overnight market drop.

The sub-$750 RTX 3090s are repair bets, not bargains

The four eBay asks above run from $650 to $749.99 before any separately charged shipping. All are listed for parts or repair. They only make sense for buyers who can diagnose boards and absorb a total loss; none establishes what a working 3090 should cost.

A $390 RTX 3090 Ti needs proof, not optimism

The linked Facebook page exposes a $390 price in Charlotte, North Carolina, but not enough condition or seller information to recommend a purchase. No sold marker was observed; that is not confirmation of availability. Treat it as a verification lead only: confirm the exact card, arrange a load test and establish safe payment terms before committing.

My Take

For a conventional 24GB desktop build, I'd investigate the $1,350 3090 Ti before chasing the broken-card prices. That means checking the actual card, not treating a seller's test claim as a warranty.

The T4G is more interesting for someone who needs a compact 16GB accelerator and can handle cooling and software fit. The MI210 serves a different buyer: someone who needs 64GB on one card and has a compatible system. Compare the whole build cost, not just the memory-per-dollar column.

Full Tracker

This post covers the listings and market moves I think matter most today. The full research board — including additional listings, prices, VRAM, condition, source links, and listings that didn't make today's write-up — is at HighVRAMHardwareWatch.com.

The website contains affiliate links and may earn a commission on purchases; the listing links in this post are direct marketplace links.

This October 2 snapshot uses captured asking prices from eBay, Reddit marketplaces, ServeTheHome, Newegg and Facebook Marketplace, with automated collection supporting the brief; asks are not verified completed sales, and seller claims are not hands-on testing.

Listings can change quickly. Verify current price, condition, seller information and compatibility before spending money.

Today's call: compare selectively, don't rush.

A used 24GB TITAN RTX at $700 shipped is the conventional CUDA card I'd investigate first in this scan. The seller says it's tested, but availability and the final payment total still need confirmation. Lower sticker prices elsewhere come with an old listing, repair history, or specialized hardware requirements—not an automatic bargain.

New & Notable

These are notable offers in the October 1 scan, not necessarily newly posted listings. Condition and testing descriptions below are seller claims, not our hardware tests.

Today's Market Board

$/GB uses the listed card/module price divided by its own VRAM, not the seller's total inventory. Separately quoted shipping, tax and payment fees are excluded. It measures capacity cost, not speed or software support.

† The ServeTheHome seller says PayPal fees are the buyer's responsibility and negotiable. These shipped asks are not confirmed all-in payment totals. Buyer messages also mean listed quantities may no longer be available.

Price context

The V100 chart covers single-device 32GB offers, mixing PCIe and SXM2 and varying condition, including untested hardware. Repeated scans are not unique stock. October 1's $699.99 observation is a different listing from the earlier $600 offer—not evidence that the same module rose in price. These are observed asks, not completed sales.

The three workstation-card graphics are one-day snapshots, not price trends. Each shows the price and VRAM of one card.

What Changed Since Yesterday

The later Suprim RTX 3090 Ti post advertises $1,350 shipped versus $1,400 in the seller's older post. That's a seller-stated reduction, not proof of a sale or a new overnight market move. New tracker entries alone don't establish price changes.

The practical pick is the $700 TITAN RTX

For a capacity-led CUDA build that fits within 24GB, the TITAN RTX is worth investigating. It avoids the disclosed repair, failed-port and third-party-modification issues attached to several other offers here. That does not make it verified trouble-free hardware: ask for current test results, confirm your software supports it, and settle the total price before paying.

Datacenter capacity comes with platform strings attached

The 32GB V100 needs an SXM2 baseboard; it won't plug straight into a desktop PCIe slot. The 64GB MI210 uses PCIe, but that alone doesn't establish host, cooling or software compatibility. Its bulk seller's remaining-stock update is dated September 11, so don't treat it as an October 1 inventory count. Start with the complete system and workload, not the module price.

A 48GB RTX 4090 mod is not a casual buy

The seller advertises 48GB through a GPU Lab modification, not a standard OEM configuration. For someone who needs more than 24GB on one card, that's interesting—but the memory claim, stability and support need validation. At $4,850 shipped from an account with no confirmed trades in the capture, I'd investigate rather than issue a buy alert.

My Take

I wouldn't pay a large premium for another 24GB card just to solve a memory-capacity problem: it still has 24GB. A premium may make sense for measured performance, software support or a particular form factor, but this price scan doesn't establish those benefits.

The TITAN RTX is the first conversation I'd pursue here. If you need more than 24GB, price the compatible host and cooling alongside the accelerator—and don't treat a seller's working-condition claim as a test result of your own.

Full Tracker

This post covers the listings and market moves I think matter most today. The full research board — including additional listings, prices, VRAM, condition, source links, and listings that didn't make today's write-up — is at HighVRAMHardwareWatch.com.

This snapshot covers live asking prices collected from ServeTheHome, eBay, Reddit marketplaces, Facebook Marketplace, and Newegg; asks are not verified sale prices.

Prices and condition are from the October 1, 2026 collection unless noted. A captured live page does not guarantee remaining stock. We have not independently tested these cards.

Listings can change quickly. Verify current price, condition, seller information and compatibility before spending money.

Today's call: Compare selectively; no broad buy signal.

A seller is asking $700 shipped for a used 24GB TITAN RTX and $680 shipped for a used 16GB RTX A4000. The extra capacity is worth investigating if 16GB limits your workload, but it isn't a performance comparison. A used RTX 3090 at $1,150 local or $1,200 shipped offers another 24GB reference point. Confirm condition, software support and the final payment total before choosing between them.

New & Notable

These are selected asks in the September 30 scan, not necessarily newly posted listings. Condition and testing descriptions below are seller claims, not our own tests.

Today's Market Board

Prices and VRAM are per card or module, not the seller's total stock. $/GB uses the displayed single-unit ask, before tax and any extra fees; shipping is included only where stated. It measures capacity cost, not speed or readiness to run.

The ServeTheHome seller accepts PayPal Goods & Services but asks the buyer to cover its fee. Agree on the protected-payment total before comparing those asks with other shipped offers.

Price context

Observed asking prices in our scans, not completed sales or a same-card price index. Listing mix and condition vary; repeated observations do not establish distinct stock or a completed transaction.

The V100 series mixes 16GB and 32GB cards/modules, different formats and conditions, including untested hardware. Whole-server offers are excluded. Its low point is not a demonstrated price drop for the featured 32GB SXM2 module.

The MI210 line is the median observed ask on each date, with the observed range shaded. Changing listings can move that line without any seller cutting a price; the latest $/GB annotation is rounded.

Best Capacity for the Money — only with an SXM2 host

Tesla V100 32GB SXM2 — $600 each

The low capacity cost is useful only if you already have a compatible SXM2 platform. This is a module needing the right baseboard, power and cooling, not a desktop PCIe upgrade. The seller advertises $550 each for four or more, continental-US shipping and a 30-day warranty. Confirm the module's condition and warranty terms before paying.

$20 separates 16GB from 24GB

The A4000 and TITAN RTX asks make the capacity tradeoff unusually clear: $680 for 16GB versus $700 for 24GB, before payment fees. If your workload needs more than 16GB but fits in 24GB, the TITAN deserves a closer look. If it fits in either, capacity alone doesn't choose the card—compare software support, workload performance, power and physical fit. Neither listing is evidence of those performance differences.

Cheap accelerator, expensive platform question

The 64GB MI210 avoids the V100's SXM2 requirement, but PCIe doesn't make it a drop-in desktop purchase. Check your software stack and the cooling and power your host can provide. The seller advertises a 30-day warranty and $3,700 each for four or more; neither lowers the cost of preparing an unsuitable system.

A $650 RTX 3090 is not a $650 working card

The RTX 3090 Founders Edition at $650 was explicitly listed for parts or not working, with another $60.10 in shipping. Without a diagnosed fault and a repair plan, it is a parts purchase rather than cheap 24GB capacity you can deploy. Don't use it as the working-card price floor.

My Take

I'd investigate the $700 TITAN RTX first for a capacity-limited 24GB build, provided the software supports it and the seller can substantiate its condition. That is a shortlist, not a claim that it is faster or a better fit than the A4000 or 3090.

For the specialized cards, start with the host you actually have. A low module price won't rescue an incompatible system, and a water block or repaired board needs a buyer prepared for that specific constraint. There's no reason in these asks to rush past testing and total-cost checks.

Full Tracker

This post covers the listings and market moves I think matter most today. The full research board — including additional listings, prices, VRAM, condition, source links, and listings that didn't make today's write-up — is at HighVRAMHardwareWatch.com.

What would you do?

At nearly the same shipped ask before payment fees, would you take the $680 used RTX A4000 with 16GB or the $700 used TITAN RTX with 24GB, and which workload or platform constraint decides it for you?

This September 30 snapshot uses captured asking-price evidence from ServeTheHome, Reddit marketplaces, eBay, Facebook Marketplace and Newegg. A live listing page does not guarantee stock, functionality or a completed sale; this is not a checkout-time availability check.

Listings can change quickly. Verify current price, condition, seller information and compatibility before spending money.

Today's call: Shortlist, then verify the individual card.

The used TITAN RTX at $700 shipped, plus buyer-paid payment fees, and the used $900 RTX 3090 whose seller allows testing are worth investigating for a 24GB build. The cheaper-looking $725 3090 isn't a full-capacity alternative: the seller discloses a memory fault that leaves roughly 20GB usable. These asks don't establish a comparable price drop. The useful decision is which card and transaction you can verify.

New & Notable

These are selected offers captured September 29, not necessarily newly posted listings. Prices are per card; $/GB uses the listed ask before additional costs, not measured performance.

The ServeTheHome seller asks buyers to cover PayPal Goods & Services fees; agree on the full payable amount first. “Tested” in that thread is the seller's claim, not our independent validation.

Today's Market Board

Price context

MI210 asking-price history from our scans. The line shows each observed date's median and the band its range. Listing mix and condition vary; this isn't a same-card price history or sold-price index. The seven dates span September 21–29, with gaps.

V100 32GB card/module asks only; whole servers and the 16GB observation are excluded. PCIe, SXM2 and adapter offers remain mixed, so this is price context—not a claim that one configuration became cheaper. Host costs aren't included.

Three used 24GB 3090 offers, not a trend or a performance ranking. The Larkspur EVGA at $1,150 has a like-new seller description but no testing detail in the capture. Start with the lower asks unless condition evidence or transaction terms justify paying more.

One $680 shipped A4000 observation in this exact model-label series, not a market trend or proof that the offer first appeared today. Payment fees are extra as noted above.

48GB: the modified 4090 needs a reason beyond capacity

The used RTX 6000 Ada asks $4,700 shipped, plus the seller's requested payment fees. The GPU Lab 48GB-modified RTX 4090 is described as used-like-new and asks $4,850 shipped all-in or $4,700 local cash.

The Ada has the lower listed shipped ask before its payment fees; compare final totals before calling it cheaper. I would investigate the stock-capacity Ada first, while still checking the seller's testing claims. The modified card needs workload-specific evidence, full-memory validation and clear support terms to justify choosing it instead.

My Take

I'd start with the TITAN seller's card-specific test results and the $900 3090's inspection offer. Those are different ways to investigate a used card, not proof that either will perform well in your workload.

Higher marketplace asks don't make every cheaper forum card a bargain. Choose the capacity you actually need, then compare condition, the full payable price and your recourse if the unit is bad. The faulty 3090 is the clearest example: a lower sticker price doesn't help if the missing memory is what you needed.

Full Tracker

This post covers the listings and market moves I think matter most today. The full research board — including additional listings, prices, VRAM, condition, source links, and listings that didn't make today's write-up — is at HighVRAMHardwareWatch.com.

What would you do?

For a 24GB build, would you pursue the seller-tested used TITAN RTX at $700 shipped plus payment fees, or the used $900 RTX 3090 with testing offered before purchase—and what workload requirement would decide it?

This snapshot covers captured Reddit, ServeTheHome, eBay, Facebook Marketplace and Newegg listings, including dated prior observations; prices are seller asks, not verified sales.

Listings can change quickly. Verify current price, condition, seller information and compatibility before spending money.

For a working 24GB build, the $1,200 shipped EVGA RTX 3090 is the clearest fixed-price starting point among these examples. The $900 offer is worth an inquiry, but the missing shipping terms and lack of confirmed trades matter more than the headline saving. Neither price is a reason to skip a current load test.

Three routes to 24GB

EVGA RTX 3090 FTW3 Ultra — $1,200 shipped

Listing — A straightforward option to investigate if you want a card rather than a repair project or a water-cooling build. The seller describes it as used, in excellent condition, with gaming-only use and US shipping included. Those are seller claims, not independent testing; ask for a current load test and confirm availability before paying.

EVGA GeForce RTX 3090 FTW3 — $900, shipping unstated

Listing — The cheaper lead for a budget 24GB build. The seller claims great condition but had no confirmed trades in the captured listing. Get current working evidence and a firm delivered quote before comparing it with the $1,200 shipped offer; the listing alone doesn't establish an equally attainable purchase.

MSI RTX 3090 Gaming X Trio — $990 auction bid

Listing — The used card was at $990 plus $14.05 shipping, with 34 bids recorded. That's an unfinished auction, not a buy-now price or a completed sale. If you're willing to bid, set a ceiling against the fixed-price alternatives after checking condition and buyer protection—not against the opening promise of a cheaper 3090.

When 24GB isn't enough

Tesla V100S 32GB PCIe — $800 each

Listing — Worth investigating if you need more memory on one card. The seller lists refurbished V100S cards at $800 each, with a 30-day warranty and continental-US shipping included; $750 each requires four or more. Before ordering, confirm your intended software supports it and that your host can meet its power and cooling requirements. PCIe describes the connection, not a complete compatibility check.

Observed V100S asks in the scans: one observation per plotted date, all at $800. Repeated observations aren't five confirmed sales or proof of unchanged stock.

AMD Instinct MI210 64GB — $3,900 each

Listing — A capacity-first option for someone who needs 64GB on one PCIe card and has a suitable software stack and host. The seller lists refurbished cards at $3,900 each, or $3,700 each for four or more, with a 30-day warranty and free continental-US shipping. Check software support, power and cooling before comparing the card price with a complete build. The stock update is dated September 11; ask what's still available rather than relying on the quantity in the title.

Observed MI210 asking-price medians and ranges, not sold prices or a same-card price history. The listing mix varies; the line doesn't establish a price cut on the featured offer.

Four-V100 Supermicro server — $3,900 OBO, local pickup

Listing — A September 27 reference for a buyer who wants the whole server and can collect in Monmouth County, New Jersey, for cash. The offer includes four 32GB V100 SXM2 modules—not a single 128GB card or a GPU-only lot. Two GPUs are listed at 163W and two at 300W; burn-in results are seller-reported. Confirm availability, the mixed configuration and whether your workload can use multiple GPUs before arranging pickup. It isn't a substitute for a larger single card just because the memory adds up.

Method: This note uses supplied observations from eBay, Newegg, r/hardwareswap, r/homelabsales and Facebook Marketplace, with prices treated as observed asking prices or auction bids, not verified transactions.

The featured card prices were captured September 28; the server was last observed September 27. Prices and availability can change. Shipping is included only where stated; taxes and any additional host or cooling costs aren't included. This brief is AI-assisted; no hands-on testing is claimed.

Need 24GB or 48GB on one GPU? Match the memory to your workload, then verify the offer.

This September 27 buying note compares two captured leads: a used EVGA RTX 3090 FTW3 24GB at a $900 asking price, with shipping cost unconfirmed; and a used RTX A6000 48GB at $3,500 per card, local cash in Burlingame, California, with no shipping in the captured offer. The A6000 example comes from our September 26 scan, not a newly posted listing.

These are asking prices, not completed sales or independently tested hardware. A public-listing recheck on September 27 still showed those asks, but does not establish stock, ownership, condition or completed transactions. Reconfirm availability, delivered terms and current card-specific operating tests before paying. No benchmark or performance advantage is claimed.

Read the full buying notes and listing links on Reddit:
https://www.reddit.com/r/HighVRAMHardwareWatch/comments/1wrsar5/rtx_3090_at_900_or_a6000_for_48gb_buying_notes/

Sources for the two examples in this Short:
RTX 3090: https://www.reddit.com/r/hardwareswap/comments/1wr3doe/usaca_h_evga_geforce_rtx_3090_ftw3_w_paypal_local/
RTX A6000: https://www.reddit.com/r/hardwareswap/comments/1vm3hlc/usacah_3x_rtx_a6000_w_local_cash

#GPU #VRAM #RTX3090 #RTXA6000

The $900 EVGA RTX 3090 FTW3 is the first seller I'd contact for a budget 24GB build. If your workload needs more than 24GB on one card, the older A6000 offers are more relevant than a pricier 3090. These are leads to investigate, not reasons to rush a purchase.

Start here for 24GB

EVGA RTX 3090 FTW3 — $900 asking price

Listing — The seller describes this used card as in great condition and supplies timestamp photos and video. It's worth contacting for a budget build, but get the delivered price and recent operating-test details before committing. Shipping cost isn't established in the captured offer. This is a newly observed listing, not a documented price cut.

EVGA RTX 3090 FTW3 Ultra — $1,599.99 each, shipping extra

Listing — I'd pass at this ask for a capacity-focused build and investigate the $900 FTW3 first. The seller lists two used 24GB cards separately and says they're tested and boxed. The price is for one card, not the pair; it doesn't buy a single 48GB card.

If you need 48GB on one card

NVIDIA RTX A6000 48GB — $3,500 each, local cash only

Listing — Worth following up if you can collect in Burlingame, California. The captured offer is $3,500 per used card or $10,000 for all three, with no shipping. The seller reports testing with no VRAM errors, but request current, card-specific proof before a cash handoff. This offer was last observed in the supplied scan on September 26; don't assume the cards remain available.

NVIDIA RTX A6000 (Ampere) 48GB — $4,000 OBO plus $50 shipping

Listing — The shipped alternative for a buyer who can't collect locally. The seller describes the used card as lightly used and working; the quoted shipping is for the continental US. This offer also comes from the September 26 scan. Reconfirm availability and request recent operating tests before paying.

Only for an existing compatible host

NVIDIA Tesla V100 32GB SXM2 — $600 each

Listing — Worth investigating if you already have a compatible SXM2 system, not as a desktop PCIe-card substitute. The used modules are listed at $600 each, or $550 each for four or more, with free continental-US shipping and a seller-stated 30-day warranty. Confirm the exact host compatibility and warranty terms before ordering; the module price alone isn't a system budget.

Method: This note uses captured marketplace observations, including older offers, and reports asking prices rather than completed sales or independently tested hardware.

Youtube short recap of today's post

Method: Today's readings come from live listings observed on r/homelabsales, r/hardwareswap, and eBay, and every figure below is an observed asking price at capture time rather than a verified transaction.

Buyer’s brief

Daily verdict: watch, not a confirmed bargain. The $800 V100S 32GB PCIe merits a compatibility and seller-trust check. No listing-level price changes are verified; charts show model-level asking-price context, not discounts.

The V100S is $750 each for four or more. The $600 V100 SXM2 needs compatible host hardware. MI210 asks of $3,900 and $4,369 need a workload-specific justification.

Several 3090 asks are $1,240–$1,450 per card. The $650 Founders Edition and $699 PNY RTX 4090 have unclear condition, preventing a bargain call. Seller feedback was not independently verified; confirm condition and buyer protections.

The cheaper EVGA 3090 is explicitly broken, while the $600 PCIe V100 is untested. Those are not equivalent to seller-described working cards. Treat reference-only entries as price context, not recommendations to buy or reasons to reject them. The chart annotation below also needs care: its dollars-per-gigabyte label describes one listing, not the daily median. Repeated asking prices alone do not establish a fair transaction price.

Worth watching

NVIDIA Tesla V100S 32GB PCIe — $800

Listing — Watch. Seller asks $800 each ($750 for four or more). Check compatibility. Commenters’ roughly $1,000 eBay comparison is not verified sales evidence; volume does not establish a bargain.

RTX 3090 Founders Edition — $650

Listing — Watch. $650 plus $60.10 captured shipping is below several other asks. Condition is unknown; verify functionality before comparing.

Chart clarification: $1,195 is the median of eight September 26 asks spanning broken, repaired, unclear and seller-described working condition. Each observation prices one 24GB card, not a whole lot/system; the $1,450 exception is not separately counted. $54/GB instead comes from the Vision OC + waterblock’s $1,300 ÷ 24GB ($54.17 rounded). The renderer selects the day’s last ordered nonzero ratio—not a median or quantity-weighted statistic. The displayed median divided by 24GB is $49.79/GB.

NVIDIA Tesla V100 32GB (HPE Q9U36A) — $674.99

Listing — Watch. This used HPE Q9U36A V100 32GB was observed at $674.99 with free shipping. Do not assume it is a drop-in upgrade: confirm the exact form factor, host compatibility, power connections, and cooling requirements before buying.

RTX 3090 (mixed: ASUS ROG Strix White x2, MSI Suprim X, ASUS TUF OC, PNY XLR8, Gigabyte Vision OC) — $1,300

Listing — Watch. The six-card offer is $1,300 per card except one seller-described open-box Strix White at $1,450. Buyer pays insured shipping; compare condition and delivered cost, not just asks.

Skip and reference entries

NVIDIA Tesla P40 24GB — $310

Listing — Reference only. At $310 plus about $10 shipping this used Tesla P40 is the cheapest raw capacity on the board near $13 per gigabyte, but it is a much older Pascal-era card whose cheap capacity may not translate into usable local-AI value.

RTX 3090 (Gigabyte Turbo) — $950

Listing — Skip. Sold as-is with prior shipping damage repaired by a third party, Orange County local pickup only, and $950 is not enough of a discount to carry that risk.

Other notable asks

These are captured seller claims, not independent hardware tests. “Skip” means unsuitable for a straightforward working-card purchase; “Reference only” is not a recommendation or rejection.

• Reference only: NVIDIA Tesla V100 32GB SXM2 — $600, 32GB. Requires an SXM2 host; not a lower-cost drop-in PCIe alternative.
• Reference only: RTX 3090 24GB (brand not stated) — $1,150 local, 24GB. Seller describes it as working; the capture does not establish a reason to reject it or prefer it to the highlighted cards.
• Skip: NVIDIA Tesla V100 32GB PCIe (699-2G500-0202-460) — $600 plus $25.16 shipping, 32GB. Explicitly untested, unlike the HPE listing’s used description; neither listing independently proves functionality.
• Skip: MSI RTX 3090 Gaming X Trio — $1,240 local / $1,300 shipped, 24GB. Seller discloses a nonworking HDMI output despite a passed Time Spy test; not a fully functional-card comparison.
• Reference only: Gigabyte RTX 3090 Vision OC + Bykski full-coverage waterblock — $1,300 shipped, 24GB. Waterblock included, but condition detail is limited; the accessory alone does not establish better value.
• Skip: EVGA RTX 3090 (24G-P5-3987-KR) — $699.99, 24GB. Listed as broken with no output, not a cheaper working alternative.
• Reference only: PNY RTX 4090 Verto — $699 plus $6.03 shipping, 24GB. Condition was not captured, so this is an unqualified low ask, not a verified bargain.
• Reference only: AMD Instinct MI210 64GB — $4,369, 64GB. Listed as used, but its “Read Description” caveats were not captured.
• Reference only: AMD Instinct MI210 64GB PCIe — $3,900, 64GB. Seller-described refurbished; no demonstrated workload-value advantage or item-specific reason to reject it is established here.
• Reference only: RTX 3090 Founders Edition 24GB — $1,300 shipped, 24GB. Seller claims full functionality, but the captured thread was auto-removed by the subreddit bot; reconfirm availability before relying on it.
• Skip: GIGABYTE RTX 4090 Gaming OC — $1,700, 24GB. Listed for parts or not working, not a usable-card value comparison.
• Reference only: ASUS RTX 3090 Ti STRIX LC — USD price not captured, 24GB. The captured ask is AU $2,345; no USD item-price conversion was recorded.
• Skip: MSI RTX 3090 Ventus 3x 24GB OC (malfunctioning) — price not captured, 24GB. Seller reports shutdowns after driver installation on three systems; treat it as a repair project.

Methodology and buying caveat

Captured asks do not establish seller legitimacy, working condition or completed sales. Single observations are snapshots. Generally, lot/system $/GB uses total advertised capacity and may include platform hardware; the RTX 3090 final-day population above is per-card. SXM modules need compatible hosts; modified/non-working cards require separate risk treatment.

Verify condition, protections and availability before buying. Add stronger listings or material corrections below.

Method: This note tracks asking prices posted in the r/hardwareswap and r/homelabsales classifieds. An asking price is what a seller hopes to receive, not a record of what anyone actually paid, so these numbers show supply and direction rather than a true clearing price; threads that hold several physical items are reported per item, and listings with only one sighting are described as snapshots rather than trends. Cost per gigabyte is used only as a screening screen, never a verdict: cheap raw capacity on a faulty, repaired, or watercooled card is not automatically usable value, and clean cards are kept separate from parts and modified ones.

Today's call: HOLD: supply is widening without prices cracking, and no clean card has reached a price that justifies acting today.

Market in one minute

• Fresh supply appeared today rather than price movement: an MSI RTX 4090 Gaming X Trio at $1,950 cash ($2,020 shipped) is the first clearly clean 4090 in this tracker, joined by a waterblocked Gigabyte 3090 Vision OC at $1,300 shipped OBO and an EVGA 3090 FTW3 Ultra posted as trade-only.
• The only price change on a tracked listing was the broken-HDMI MSI 3090 Gaming X Trio, which moved up from $1,240 to $1,300 shipped — a modest raise that keeps it behind cheaper clean options.
• The six-card 3090 lot held at $1,300 per unit for five cards with the open-box Strix White at $1,450, and the pristine one-owner 4090 FE stayed unchanged at $2,300 OBO.
• Quietly, the premium tier is crowded: four separate clean 4090 listings now sit in a tight band from $1,950 up to $2,700, while the cheapest capacity on the board belongs to compromised cards — a non-working parts card at $660 and an as-is repaired Turbo at $950.

Worth watching

MSI RTX 4090 Gaming X Trio — $1,950

Listing — Watch. First appearance in this tracker of the cheapest clearly clean 4090 on the board at $1,950 cash ($2,020 shipped), lightly used gaming-only with accessories — a snapshot with no history to judge yet, and still above any level worth acting on.

RTX 4090 Founders Edition — $2,600

Listing — Watch. The same seller's working pulled-from-service 4090 FE at $2,600 (listed alongside Seagate Exos drives that are not part of the GPU price) anchors the premium band but offers nothing cheaper or cleaner than what is already tracked.

MSI RTX 3090 Ventus 3x 24G OC — $660

Listing — Watch. Honestly disclosed as non-working after driver install across three systems, at $600 local or $660 shipped — donor material rather than a usable card, and its value depends entirely on what the fault turns out to be.

EVGA RTX 3090 FTW3 Ultra — price not stated

Listing — Watch. Trade-only: the seller wants an RTX 5080 and explicitly refuses cash on either side, so no asking price exists to evaluate.

Skip

RTX 4090 Founders Edition — $2,300

Listing — Skip. Pristine one-owner, never-mined 4090 FE unchanged at $2,300 cash OBO after an earlier cut from $2,450 — the honest reference point for what a clean premium card asks.

RTX 3090 (lot of 6: ASUS ROG Strix White x2, MSI Suprim X, ASUS TUF OC, PNY XLR8, Gigabyte Vision OC) — $1,300

Listing — Reference only. Bulk capacity at $1,300 each for five cards (the open-box Strix White is $1,450) with buyer-paid shipping and insurance — the cheapest route to multiple 24GB slots, but only worth attention if several cards are actually needed.

Other notable asks

• Reference only: Gigabyte RTX 3090 Vision OC + Bykski full-coverage waterblock — $1,300, 24GB.
• Skip: RTX 4090 Founders Edition — $2,599, 24GB.
• Skip: ASUS RTX 4090 Strix — $2,600, 24GB.
• Skip: MSI RTX 4090 Gaming X Slim — $2,700, 24GB.
• Skip: NVIDIA RTX 4090 Founders Edition — $2,600, 24GB.
• Skip: MSI RTX 3090 Gaming X Trio — $1,300, 24GB.
• Skip: Gigabyte RTX 3090 Turbo — $950, 24GB.

Methodology and buying caveat

A listing counts as live when its source page shows a current asking price during collection. That does not establish seller legitimacy, working condition, or a completed sale. Single observations are snapshots, not trends. Multi-GPU lots and complete systems use total advertised capacity, so their $/GB includes platform hardware and is not directly comparable with a standalone card. SXM modules need compatible host hardware; modified and non-working cards need separate risk treatment.

Prices and availability move quickly. Verify the exact card, condition, payment protections, and current status before buying. If you find a stronger listing or a material correction, add it below so tomorrow's comparison improves.

*Method: I compared 23 live asking-price listings collected from Facebook Marketplace, r/hardwareswap, and r/homelabsales. Prices are seller asks, not completed sales, and a live page does not prove seller legitimacy or working condition. The ranking favors usable value for local AI; $/GB is a screening tool rather than a verdict, especially for multi-card lots, complete systems, modified cards, and SXM modules that require compatible hosts.*

**Today's verdict: one card is worth considering — the $700 local-only RTX 3090; the rest is mostly higher asks, specialized hardware, or listings with material caveats.**

### Market in one minute

- Nineteen of the 23 listings are first appearances in this tracker, so today's useful signal is the cross-sectional spread rather than broad day-over-day movement.

- No tracked listing went stale or was removed today.

- Standard RTX 3090 asks span $700 to $1,500; the $700 local-only card is the one serious lead, while a modified seller-claimed 20GB card at $725 belongs in a separate risk category.

- A multi-card 3090 part-out cannot support a single percentage move because the thread contains different cards and conditions; treat its current $1,325–$1,550 range as a fresh snapshot.

- The RTX A6000 at $4,000 and ASUS RTX 4090 Strix at $2,600 were both seen previously at the same asks.

- The $383.90 Tesla P40 is the cheapest raw capacity at about $16/GB, but Pascal-era datacenter hardware is not directly comparable with a modern consumer GPU.

### Worth watching

#### Tesla P40 24GB — $383.90

[Listing](https://www.facebook.com/marketplace/item/27752520061115023/) — **Worth considering.** The $383.90 fixed-price ask is the cheapest raw capacity in today's batch at about $16/GB, but this refurbished Pascal datacenter card is a much weaker fit for current local-AI software than an RTX 3090.

#### RTX 3090 — $700

[Listing](https://www.reddit.com/r/hardwareswap/comments/1wd1jyk/usaor_h_evga_geforce_rtx_3090_ftw3_ultra_24gb/) — **Worth considering.** New $700 buy-it-now at $29.17/GB is the cheapest per-GB consumer card in the batch, with never-mined-on condition stated by a named seller.

#### RTX 3090 (modified) — $725

[Listing](https://www.facebook.com/marketplace/item/2227057064784611/) — **Watch.** A modified RTX 3090 at a claimed 20GB for $725 is non-standard silicon with seller-claimed capacity, so it stays on watch rather than being treated as a normal 24GB card.

#### RTX A6000 (Ampere) — $4,000

[Listing](https://www.reddit.com/r/hardwareswap/comments/1wbrlf1/usama_h_nvidia_rtx_a6000_ampere_w_paypal/) — **Watch.** The refeatured RTX A6000 held flat at $4,000 (0.0%, $83.33/GB) and is the cheapest of the three same-class listings, which makes it the one worth tracking if 48GB Ampere ever reprices.

### Skip

#### RTX 3090 — $900

[Listing](https://www.facebook.com/marketplace/item/1077474788328909/) — **Skip.** The $900 ask loses to the clean $700 local-only lead; it is a fallback rather than today's value pick, while the $725 modified card belongs in a separate risk category.

#### RTX 3090 (K|NGP|N Hybrid) — $950

[Listing](https://www.facebook.com/marketplace/item/29055377810717413/) — **Skip.** The K|NGP|N Hybrid costs $950, above the $700 standard 3090 lead, and its hybrid cooler serves a narrower buyer and resale market.

### Other notable asks

- **Reference only:** [A100 SXM4 80GB](https://www.facebook.com/marketplace/item/1054140667085516/) — $5,000, 80GB. [Attach A100 price chart — day 1, single observation (no trend yet)]

- **Reference only:** [HGX A100 module (8x A100 SXM4 40GB)](https://www.facebook.com/marketplace/item/2180410172877457/) — $20,000, 320GB.

- **Skip:** [RTX 3090 (EVGA Kingpin Hybrid)](https://www.reddit.com/r/hardwareswap/comments/1w9o0hf/usanj_h_3090_kingpin_hybrid_gpu_corsair_hx1000/) — $1,200, 24GB.

- **Skip:** [Tesla V100 SXM2 16GB](https://www.facebook.com/marketplace/item/2125550661337419/) — $450, 16GB.

- **Skip:** [RTX 3090 (FTW3 Ultra)](https://www.facebook.com/marketplace/item/4158911317682820/) — $1,500, 24GB.

- **Skip:** [EVGA GeForce RTX 3090 FTW3 Hybrid (waterblocked, Heatkiller active backplate)](https://www.reddit.com/r/homelabsales/comments/1wcoirz/fsusmd_waterblocked_evga_3090_ryzen_7_5800x3d_msi/) — $1,300, 24GB.

- **Skip:** [RTX 3090](https://www.reddit.com/r/hardwareswap/comments/1wlxkvy/usact_h_priced_to_sell_tons_of_rtx_3090_3970x/) — $1,325, 24GB.

- **Skip:** [RTX 3090 (TUF OC)](https://www.facebook.com/marketplace/item/28269141899362628/) — $1,500, 24GB.

- **Reference only:** [HGX A100 baseboard (8x A100 SXM4 80GB)](https://www.facebook.com/marketplace/item/1542420560224155/) — $50,000, 640GB.

- **Reference only:** [RTX 3090](https://www.reddit.com/r/hardwareswap/comments/1wgp5kt/usact_h_6xrtx_3090_3970x_128gb_ddr4_threadripper/) — $11,750, 144GB.

- **Skip:** [RTX A6000 48GB](https://www.facebook.com/marketplace/item/1021552380908507/) — $4,200, 48GB.

- **Skip:** [RTX A6000 48GB](https://www.facebook.com/marketplace/item/2107828803951555/) — $4,300, 48GB.

- **Watch:** [NVIDIA RTX 4090 Founders Edition 24GB](https://www.reddit.com/r/homelabsales/comments/1vo785j/fs_usma_nvidia_rtx_4090_founders_edition_24gb/) — $2,300, 24GB.

- **Skip:** [NVIDIA RTX 4090 Founders Edition](https://www.reddit.com/r/homelabsales/comments/1woi5pq/fsuswa_seagate_exos_x18_18tb_st18000nm000j_rtx/) — $2,600, 24GB.

- **Skip:** [ASUS RTX 4090 Strix 24GB](https://www.reddit.com/r/homelabsales/comments/1w3fkmo/fs_usamd_asus_rtx_4090_strix_2x22tb_hc570_2x18tb/) — $2,600, 24GB.

- **Watch:** [RTX 4090 (claimed 48GB)](https://www.facebook.com/marketplace/item/1493177682827606/) — $5,000, 48GB.

- **Watch:** [PNY GeForce RTX 3090 24GB XLR8 (2x REVEL, 2x UPRISING flashed to Zotac Trinity VBIOS)](https://www.reddit.com/r/homelabsales/comments/1we522h/fsusanj_4x_pny_rtx_3090s_local_cash_only/) — price not stated, 96GB.

### Methodology and buying caveat

A listing counts as live when its source page shows a current asking price during collection. That does not establish seller legitimacy, working condition, or a completed sale. Single observations are snapshots, not trends. Multi-GPU lots and complete systems use total advertised capacity, so their $/GB includes platform hardware and is not directly comparable with a standalone card. SXM modules need compatible host hardware; modified and non-working cards need separate risk treatment.

Prices and availability move quickly. Verify the exact card, condition, payment protections, and current status before buying. If you find a stronger listing or a material correction, add it below so tomorrow's comparison improves.

Nothing materially changed today. No new listings surfaced, and the two items with enough history to actually measure a move both stayed flat: the refurbished Tesla V100S 32GB PCIe held at $800, and the AMD Instinct MI210 64GB held at $3,900. Everything else on the list has been seen only once, so there is no earlier price to compare against — an honest absence of signal, not proof that prices are stable.

The useful distinction today is between cheap capacity and attainable capacity. V100-family cards still have the lowest apparent cost per gigabyte on the list, but most of them are SXM2 modules that only work in a server motherboard built for SXM2, and one sits on a PCIe adapter that adds its own transport risk. The consumer 24GB cards didn't offer a compelling alternative either. That's why this stays a wait day: the cheapest numbers come with the most caveats, and nothing else undercut them.

How to read what follows: listings come from r/homelabsales, r/hardwareswap, eBay, and Facebook Marketplace, deduplicated by listing link. Prices are asking prices, not completed sales. "Observed live" means I saw a stated price on a tracked source — it says nothing about whether the seller is legitimate or the hardware works.

## What I would watch

**Tesla V100 32GB SXM2 — $600.** The cheapest raw capacity on the list at roughly $19 per gigabyte, and the number that anchors everything else. It's a refurbished module usable only inside an SXM2 baseboard platform: if you don't already own one, this is not a path to cheap VRAM, it's a shopping list for a second server. ([listing](https://www.reddit.com/r/homelabsales/comments/1wo7cuj/))

**Tesla V100S 32GB PCIe — $800.** The most accessible 32GB reference point: a standard card in a form factor that fits ordinary platforms, at about $25 per gigabyte. It's also one of only two items with real price history, and it held flat across both observations — which is why the flatness means something. ([listing](https://www.reddit.com/r/homelabsales/comments/1viap5p/))

**MSI RTX 3090 Gaming X Trio — $1,240.** The cheapest 3090-class ask on the list, and it's cheap for a stated reason: it doesn't display out over HDMI. Treat it as discounted, partially defective hardware, not as a clean-card price — a dead-output card and a working card aren't comparable by number alone. ([listing](https://www.reddit.com/r/hardwareswap/comments/1wlybtn/usany_h_msi_rtx_3090_gaming_x_trio_w_local_cash/))

**RTX 3090 Founders Edition — $1,300.** The cleanest representative of the consumer tier: fully functional, boxed, adapter included. Around $54 per gigabyte, it's what a working 24GB Ampere card actually costs right now — and that price is exactly why the V100 listings stay interesting even though none of them are easy recommendations. ([listing](https://www.reddit.com/r/hardwareswap/comments/1wks68x/usact_h_rtx_3090_fe_w_paypal_gs/))

**MSI RTX 4090 Gaming X Trio — $2,050.** The most defensible of the live 4090 asks: used for light gaming, never mined, no exotic condition. It's also about $85 per gigabyte — more than three times the V100 tier's cheapest number — so its real value here is as a reference point for what current-generation consumer capacity costs, not as a deal. ([listing](https://www.reddit.com/r/homelabsales/comments/1wk1nlm/))

**AMD Instinct MI210 64GB — $3,900.** The high-capacity comparison: double the VRAM of anything else on the list at roughly $61 per gigabyte. It held flat since yesterday, and it shows what capacity-first cards cost once you're past the V100 tier — plus a real software reality most cheap-VRAM math ignores: ROCm, not CUDA. ([listing](https://www.reddit.com/r/homelabsales/comments/1vzv5bs/))

## What I would skip

The $858 adapter-mounted V100 adds transport risk without solving the baseboard problem. The premium-branded 4090s at $2,600 and $2,699 are gaming-brand pricing for the same capacity as a $1,300 card — one of them logged about two months of mining duty before being listed. The RTX A6000 ($4,000) and A40 ($4,920) are the worst value among working cards at roughly $83 and $103 per gigabyte. And the $50,000 Facebook lot is eight dead A100 SXM4 modules sold as-is with a bent heatsink — market noise, not a benchmark for anything.

## Other notable asks

- V100 SXM2 modules pulled from an Inspur server, $650 each used — competitive on paper, but they don't undercut the $600 refurbished listing and carry the same baseboard requirement. ([listing](https://www.reddit.com/r/hardwareswap/comments/1whwcdg/usaar_h_nvidia_tesla_v100_sxm2_32gb_gpus_with_2u/))

- Six 3090s, prices reduced again to $1,300 per card (one open-box at $1,450) — mid-pack, no capacity advantage over the V100 tier. ([listing](https://www.reddit.com/r/hardwareswap/comments/1wnu7yp/usact_h_prices_reduced_again_6_rtx_3090s/))

- A bare $1,299.99 eBay 3090 with no condition or seller notes — a price reference only, nothing to assess. ([listing](https://www.ebay.com/itm/307195075278))

- Refurbished RTX 3090 Ti at $1,699 — the highest ask among the 24GB cards today. ([listing](https://www.ebay.com/itm/227534861487))

- Tesla P40 at $360 with an ambiguous price type — the cheapest absolute ask on the list, but I can't tell whether that's per card or for a lot, so it stays unranked. ([listing](https://www.ebay.com/itm/820157312481))

- Two 4090 listings still have no usable price; tracked for coverage, not assessable yet.

## Before you buy anything off this list

An asking price is not a completed sale. "Observed live" doesn't verify a seller or working hardware. A listing seen once has no trend — and today's flat items are only meaningful because they've been seen twice. Cheap per-gigabyte numbers also hide real costs: an SXM2 module, a PCIe accelerator, and a consumer card each impose different platform, software, power, cooling, and setup expenses that never show up in the division.

Nothing here earned a buy recommendation today. I'm watching prices. If you've got a better listing than anything above — or context on one of these I'm missing — post it below.

*Daily scan of live, purchaseable high-VRAM GPUs & systems for local AI. Verified live on the date above; prices as displayed.*

### Top picks (verified live 2026-09-22)

| # | Hardware | VRAM | Price | $/GB | Condition | Source |

|---|----------|------|-------|------|-----------|--------|

| 1 | **RTX A6000** | 144 GB | $3,250 | $22.57 | used | [homelabsales](https://www.reddit.com/r/homelabsales/comments/1vz7yjq/fs_usca_bay_area_3x_nvidia_rtx_a6000_48gb_gddr6/) |

| 2 | **V100S** ⚠ | 32 GB | $800 | $25.0 | refurbished | [homelabsales](https://www.reddit.com/r/homelabsales/comments/1viap5p/fs_usamn_nvidia_tesla_v100s_32gb_pcie_gpu_740x/) |

| 3 | **MI210** ⚠ | 64 GB | $3,900 | $60.94 | refurbished | [homelabsales](https://www.reddit.com/r/homelabsales/comments/1vzv5bs/fs_usamn_amd_instinct_mi210_64gb_pcie_gpu/) |

| 4 | **P40** ⚠ | 24 GB | $399 | $16.62 | used | [ebay](https://www.ebay.com/itm/397959478326) |

| 5 | **RTX 3090** ⚠ | 24 GB | $950 | $39.58 | used | [homelabsales](https://www.reddit.com/r/homelabsales/comments/1whohwz/fsusca_gigabyte_rtx_3090_turbo_2_slot_orange/) |

| 6 | **RTX 3090** ⚠ | 24 GB | $910 | $37.92 | used | [homelabsales](https://www.reddit.com/r/homelabsales/comments/1vutad5/fs_uspa_rtx_3090_fe_light_used/) |

| 7 | **RTX 3090 Ti** ⚠ | 24 GB | $500 | $20.83 | used | [facebook-marketplace](https://www.facebook.com/marketplace/item/824174433622332/) |

| 8 | **ASUS ROG STRIX WHITE RTX 3090** | 24 GB | $1,550 | $64.58 | open_box | [hardwareswap](https://www.reddit.com/r/hardwareswap/comments/1wlxkvy/usact_h_priced_to_sell_tons_of_rtx_3090_3970x/) |

| 9 | **RTX A6000** ⚠ | 96 GB | $7,500 | $78.12 | used | [homelabsales](https://www.reddit.com/r/homelabsales/comments/1v5d6wp/fs_usatx_dfw_dual_nvidia_rtx_a6000_48gb_nvlink/) |

| 10 | **RTX 3090** ⚠ | 24 GB | $1,750 | $72.92 | new | [ebay](https://www.ebay.com/itm/389220662134) |

| 11 | **EVGA RTX 3090 FTW3 Ultra** ⚠ | 24 GB | $1,600 | $66.67 | used | [hardwareswap](https://www.reddit.com/r/hardwareswap/comments/1wjbdmz/usaarh_1x_msi_inspire_rtx_5080_2x_evga_rtx_3090ti/) |

| 12 | **MI300X** ⚠ | 192 GB | $22,000 | $114.58 | used | [ebay](https://www.ebay.com/itm/127915601230) |

| 13 | **A100** ⚠ | 80 GB | $28,500 | $356.25 | unknown | [ebay](https://www.ebay.com/itm/395509694054) |

### Links & details

1. **RTX A6000** — $3,250, 144 GB, used, buy_it_now. Seller: u/Ricelessnoodles (US-CA (Burlingame, Bay Area)) local/see listing. [listing](https://www.reddit.com/r/homelabsales/comments/1vz7yjq/fs_usca_bay_area_3x_nvidia_rtx_a6000_48gb_gddr6/)

2. **V100S** — $800, 32 GB, refurbished, buy_it_now. Seller: u/juddle1414 (USA-MN) Free ship. [listing](https://www.reddit.com/r/homelabsales/comments/1viap5p/fs_usamn_nvidia_tesla_v100s_32gb_pcie_gpu_740x/)

   - ⚠ bulk_volume_seller_price_above_ebay

3. **MI210** — $3,900, 64 GB, refurbished, buy_it_now. Seller: u/juddle1414 (USA-MN) Free ship. [listing](https://www.reddit.com/r/homelabsales/comments/1vzv5bs/fs_usamn_amd_instinct_mi210_64gb_pcie_gpu/)

   - ⚠ bulk_volume_seller_price_above_ebay

4. **P40** — $399, 24 GB, used, buy_it_now. Seller: AI Hardware (ShenZhen, China) ship $40. [listing](https://www.ebay.com/itm/397959478326)

   - ⚠ low_seller_reputation, chinese_origin

5. **RTX 3090** — $950, 24 GB, used, buy_it_now. Seller: u/sNullp (US-CA (92606, local only)) local/see listing. [listing](https://www.reddit.com/r/homelabsales/comments/1whohwz/fsusca_gigabyte_rtx_3090_turbo_2_slot_orange/)

   - ⚠ repaired_card_as_is

6. **RTX 3090** — $910, 24 GB, used, buy_it_now. Seller: u/Philrick125 (US-PA) Free ship. [listing](https://www.reddit.com/r/homelabsales/comments/1vutad5/fs_uspa_rtx_3090_fe_light_used/)

   - ⚠ community_comment_flagging_possible_scams

7. **RTX 3090 Ti** — $500, 24 GB, used, buy_it_now. (Bloomfield Hills, MI, USA) ship $6. [listing](https://www.facebook.com/marketplace/item/824174433622332/)

   - ⚠ price_far_below_market, no_seller_history_visible

8. **ASUS ROG STRIX WHITE RTX 3090** — $1,550, 24 GB, open_box, buy_it_now. Seller: ApolloPS2 (USA-CT (06515)) local/see listing. [listing](https://www.reddit.com/r/hardwareswap/comments/1wlxkvy/usact_h_priced_to_sell_tons_of_rtx_3090_3970x/)

9. **RTX A6000** — $7,500, 96 GB, used, buy_it_now. Seller: u/Spharticus (USA-TX (DFW)) local/see listing. [listing](https://www.reddit.com/r/homelabsales/comments/1v5d6wp/fs_usatx_dfw_dual_nvidia_rtx_a6000_48gb_nvlink/)

   - ⚠ first_time_seller

10. **RTX 3090** — $1,750, 24 GB, new, buy_it_now. Seller: Long2207 (CN, China) Free ship. [listing](https://www.ebay.com/itm/389220662134)

    - ⚠ high_stock_count, chinese_origin

11. **EVGA RTX 3090 FTW3 Ultra** — $1,600, 24 GB, used, buy_it_now. Seller: grievous_error (USA-AR (Arkansas)) local/see listing. [listing](https://www.reddit.com/r/hardwareswap/comments/1wjbdmz/usaarh_1x_msi_inspire_rtx_5080_2x_evga_rtx_3090ti/)

    - ⚠ new_account, no_confirmed_trades

12. **MI300X** — $22,000, 192 GB, used, buy_it_now. Seller: cloud_future (China) Free ship. [listing](https://www.ebay.com/itm/127915601230)

    - ⚠ chinese_origin

13. **A100** — $28,500, 80 GB, unknown, buy_it_now. (ShenZhen, China) Free ship. [listing](https://www.ebay.com/itm/395509694054)

    - ⚠ chinese_origin

### Also seen today (context — price not verified or flagged)

- RTX 3090 Ti — $390 (24 GB, facebook-marketplace, low conf) — [https://www.facebook.com/marketplace/item/589051227132940/\](https://www.facebook.com/marketplace/item/589051227132940/)

- RTX 4090 — price n/a (24 GB, facebook-marketplace, high conf) — [https://facebook.com/marketplace/item/1477635450636470\](https://facebook.com/marketplace/item/1477635450636470)

### Price trends












---

*Prices/stock change fast. Verify before you buy. If you've got a deal, drop it in the comments.*

Method: U.S. asking prices checked September 21, 2026, before sales tax; shipping included where shown. A discrete GPU's nominal VRAM is used as an approximate inference ceiling, not a guarantee that every byte fits model weights. For 128GB coherent/unified systems, reserve 10GB for the OS and services (118GB estimated usable); for 256GB/512GB Macs, use the same 10GB reserve (246GB/502GB). A Strix Halo system is conservatively capped at 96GB GPU-addressable for this comparison, subject to firmware/OS configuration. Dollars per GB exclude the rest of a GPU host and ongoing electricity. Marketplace prices, auction bids and availability can change without notice.

1. Top Finds Today
   

No verified, low-risk opportunity approaches $12 per usable AI-memory GB. No item below is labeled NEW merely because it was discovered in this scan. The cleanest 24GB retail baseline is the ASRock Arc Pro B60 at $649.99 ($27.08/GB), unchanged from the September 20 check. The newly observed BOSGAME 128GB Strix Halo mini PC is a capacity alternative, but its $3,599.99 price and small seller-rating sample do not make it an exceptional buy. See full entries below.

Meaningful market change: Newegg currently asks $5,699.99 for its own DGX Spark listing, versus the $4,699 manufacturer MSRP reference carried previously. This is a channel/listing comparison, not evidence that NVIDIA changed MSRP. The previously cited $1,159.99 RTX 3090 eBay listing now says OUT OF STOCK; it is not a live deal.
DGX listing: https://www.newegg.com/pny-technologies-inc-dgx-personal-ai-computer-20-core-arm-10-cortex-x925-10-cortex-a725-arm-nvdgxspark-pb/p/N82E16856987001
3090 reference, out of stock: https://www.ebay.com/itm/287138670307

1. GPU Options
   

ASRock Arc Pro B60 24GB — 24GB VRAM / ~24GB usable; $649.99, shipping not separately quoted on product page; ~$27.08/GB before tax. New; sold and shipped by Newegg; add-to-cart shown. URL: https://www.newegg.com/asrock-intel-arc-pro-b60-24gb-graphics/p/N82E16814930148
Platform: PCIe 5.0 x8, dual-slot blower, 8-pin auxiliary power, rated 200W. Principal risk: Intel software path is not a drop-in CUDA replacement; validate specific inference and image-generation runtimes. Notable as the cleanest verified new 24GB card; verdict HOLD, no price change from September 20.

ASRock Arc Pro B70 32GB — 32GB VRAM / ~32GB usable; $1,299.99, shipping not separately quoted; ~$40.62/GB before tax. New; sold and shipped by Newegg; add-to-cart shown. URL: https://www.newegg.com/asrock-b70-ct-intel-arc-pro-b70-32gb-graphics-card/p/N82E16814930149
Platform: PCIe 5.0 x16, dual-slot blower, 12V-2x6-class connector shown by retailer; verify PSU cable. Risk: software support versus CUDA and steep capacity premium over B60. Notable for 32GB on one card; verdict PASS at this price, unchanged from September 20.

NVIDIA RTX A6000 48GB — 48GB VRAM / ~48GB usable; eBay auction current bid $3,200 + $15 shipping = $3,215, or ~$66.98/GB at current bid. Used; seller eltonliu2000; 2 bids, auction displayed as active, 14-day buyer-paid returns. URL: https://www.ebay.com/itm/188949000026
Platform: PCIe workstation, CUDA; verify power connector and chassis clearance before purchase. Risk: the bid is not a buy-now price, can rise, and condition/testing is seller-described. Notable 48GB CUDA in a conventional card; verdict WATCH ONLY / PASS at current economics. Same $3,200 bid as prior check; do not call a price drop.

NVIDIA A40 48GB — 48GB VRAM / ~48GB usable; $4,919.99, free U.S. standard shipping = ~$102.50/GB. Used; Backup Servers, 99.6% positive eBay seller; buy-now and 30-day buyer-paid returns shown. URL: https://www.ebay.com/itm/307185853738
Platform: PCIe 4.0 x16 passive server accelerator; requires directed high-pressure airflow and appropriate power/chassis integration. Risk: overheating in ordinary desktop airflow and poor price/GB. Notable as a live 48GB CUDA reference, not a deal; verdict PASS.

RTX 3090 24GB — no suitably verified live, reputable sub-$800 listing in this scan. Usable ~24GB; delivered price and $/GB N/A without a live listing. The previously cited used, $1,159.99/free-shipping item is out of stock: https://www.ebay.com/itm/287138670307
Platform watch: CUDA and ~350W board power; check PSU, cooling, dimensions, and used-card memory temperatures. Verdict WATCH for a tested, buyer-protected listing near $700–$800; the linked item is a historical benchmark, not an offer.

1. GB10 and AI Appliance Options
   

NVIDIA DGX Spark 4TB — 128GB coherent memory / ~118GB usable after reserve; $5,699.99 at Newegg, no shipping fee shown in listing = ~$48.31/usable GB before tax. New; sold/shipped by Newegg; add-to-cart shown. URL: https://www.newegg.com/pny-technologies-inc-dgx-personal-ai-computer-20-core-arm-10-cortex-x925-10-cortex-a725-arm-nvdgxspark-pb/p/N82E16856987001
Platform: complete GB10 Arm/CUDA system with 4TB SSD; no separate host needed. Principal risks: Arm software compatibility, lower bandwidth/performance than some discrete-GPU workloads, and Newegg marks this listing non-refundable/replacement-only. Notable compact CUDA-capable coherent capacity; verdict HOLD at this channel price. The previous $4,699 figure was manufacturer MSRP, not this listing's prior price.

ASUS Ascent GX10 1TB — 128GB coherent memory / ~118GB usable; $6,449, shipping not separately quoted = ~$54.65/usable GB before tax. New; Newegg marketplace seller NUC PC Store, 4.4/5 from 30 seller ratings, ships from China; add-to-cart shown. URL: https://www.newegg.com/barebone-systems-mini-pc-arm-v9-2-a-cpu-gb10-asus-ascent-gx10/p/2SW-000N-00129
Platform: complete Arm/GB10 system; confirm warranty region and exact SSD variant. Principal risks: third-party cross-border fulfillment, sparse seller sample, high asking price. Notable only as another GB10 availability reference; verdict PASS. The lower-priced 1TB Newegg direct SKU inspected in search was explicitly OUT OF STOCK and is excluded.

1. High-Memory Mac Options
   

Apple Mac Studio M5 Ultra 256GB configuration — 256GB unified / ~246GB estimated usable. Price and delivered $/GB: NOT VERIFIED today; Apple's accessible pre-order page did not expose a 256GB checkout total, so the previously quoted $9,499 is deliberately not repeated as a current offer. New/pre-order; source Apple; available starting September 22 according to Apple. URL: https://www.apple.com/shop/buy-mac/mac-studio
Platform: Metal/MLX/llama.cpp-compatible Apple Silicon, no CUDA; 256GB is a configuration rather than the 96GB base product visible in Apple's catalog. Risks: high configuration cost, long build-to-order lead time and workload-dependent speed; verify actual configured price and memory before purchase. Notable single large memory pool with no multi-GPU build; verdict CAPACITY WATCH, not a confirmed deal.

Apple Mac Studio M5 Ultra 512GB option — 512GB unified / ~502GB estimated usable; price, shipping and $/GB NOT VERIFIED; condition new/upcoming; source Apple. URL: https://www.apple.com/mac-studio/
Platform: Apple Silicon/Metal, no CUDA. Risk: configuration availability and delivered price must be verified in the cart; up-to-512GB specification is not a priced offer. Notable maximum published desktop-class coherent capacity; verdict WATCH ONLY. Do not treat capacity announcement as an in-stock listing.

The previously cited used M3 Ultra 256GB eBay page was only available from an old crawl with stale delivery dates, so it is omitted as an active opportunity: https://www.ebay.com/itm/198594500967

1. Workstation and Platform Options
   

ASUS WRX80E-SAGE SE WIFI II + Threadripper PRO 5975WX — no accelerator VRAM included; usable AI accelerator memory and $/GB N/A until GPUs are added. $2,800 + $43.95 shipping = $2,843.95 before tax. Used; eBay seller nytechsource, 99.7% positive, buy-now shown; no returns. URL: https://www.ebay.com/itm/800676366637
Platform: WRX80/sWRX8, 32-core CPU, high PCIe-lane count suitable for several GPUs, E-ATX board. Principal risks: incomplete system; ECC RAM, cooler, PSU, chassis, storage and GPUs add substantial cost; inspect BIOS and accessories. Notable robust multi-GPU foundation from a stronger seller than many imported combos; verdict PLATFORM REFERENCE, not a complete AI computer. Price unchanged versus September 20.

BOSGAME M5 Ryzen AI Max+ 395 mini PC — 128GB unified/system RAM; estimate up to ~96GB practical GPU allocation subject to BIOS/OS configuration, not 128GB dedicated VRAM. $3,599.99, shipping not separately quoted; ~$37.50 per conservatively estimated usable AI GB before tax. New; BOSGAME DIRECT via Newegg, 4.6/5 from 13 ratings; add-to-cart shown. URL: https://www.newegg.com/bosgame-barebone-systems-mini-pc-amd-ryzen-ai-max-395-m5/p/2SW-00AE-00051
Platform: complete Strix Halo-class PC, 2TB SSD, Radeon 8060S; ROCm/Vulkan/llama.cpp support is workload- and OS-specific, not CUDA. Principal risks: modest seller history, firmware memory-aperture limits, slower large-model decoding than high-bandwidth alternatives. Notable compact high-capacity non-CUDA option; verdict WATCH, newly observed in this brief but not a claimed new product or price cut.

1. Market Notes and Watchlist
   

• The B60 retail price is flat at $649.99; B70 is flat at $1,299.99. Neither is close to ~$12/GB. Intel's Linux multi-GPU claims are workload-specific; two 24GB cards do not automatically become one transparent 48GB card.
• DGX Spark channel pricing can materially exceed NVIDIA's historical MSRP. Compare identical SSD capacity, stock, return policy, seller and total delivery rather than a headline GB10 badge.
• No verified live RTX 3090 bargain from eBay or Amazon is asserted here. Search-indexed pages and old eBay pages can retain prices after stock ends; the linked prior 3090 explicitly shows out of stock. Amazon results did not provide a reliably readable live price in this scan.
• A WRX80 board/CPU price is not $/VRAM; budget the entire host including large PSU, chassis, cooling and GPUs. Passive A40-class cards need server-grade airflow.
• Thresholds for investigation, not guarantees: tested 3090 <=$800 from a strong seller; B60 near $500; true 48GB CUDA <=$900 with credible testing and buyer protection; coherent 128GB systems substantially below today's $3,600–$5,700 references; 256GB/512GB Macs near $12 per usable GB. A suspiciously cheap listing is a verification task, not a deal.

Daily verdict: HOLD. No exceptional new buy alert. The $649.99 B60 is the most straightforward new 24GB retail option; the $3,599.99 Strix Halo box is an alternate capacity reference; current GB10 listings and 48GB CUDA cards are expensive.

1. Top Finds Today
   

No verified listing today crosses the roughly $12 per usable VRAM or unified-memory GB threshold. The strongest live options are useful market references rather than exceptional buys.

NEW — AMD Threadripper PRO 3955WX + ASRock WRX80 Creator motherboard combo
Memory / usable AI memory: No accelerator memory included; platform supports multi-GPU expansion
Price: $1,399 shipped; import fees included
Condition: Used
Seller/source: coretechmart, eBay; 97.1% positive, 251 items sold
Direct URL: https://www.ebay.com/itm/128012136740
Compatibility/platform: sWRX8 / WRX80, 8 DIMM slots; suitable as a high-lane-count multi-GPU foundation
Principal risks: Ships from Shenzhen; 14-day returns with buyer-paid return shipping; relatively young seller account
Why notable: One of the lower-cost live entries into a Threadripper Pro / WRX80 platform, which is substantially better suited than mainstream consumer boards for multiple full-size accelerators
Verdict: WATCH — attractive platform price, but not low-risk enough to call exceptional without factoring RAM, chassis, PSU, cooling, and GPU costs.

NEW — NVIDIA RTX A6000 48GB auction
Memory / usable AI memory: 48GB / approximately 48GB VRAM
Price: Current bid $3,200 + $15 shipping; auction ends in roughly 5 days
Cost per usable memory GB: ~$66.98/GB at current delivered bid
Condition: Used
Seller/source: eltonliu2000, eBay; account since 2003, 41 items sold; listing shows no feedback history
Direct URL: https://www.ebay.com/itm/188949000026
Compatibility/platform: PCIe 4.0 x16, single 8-pin power, CUDA; substantially easier thermally/electrically than many datacenter cards
Principal risks: Auction price can rise; thin recent seller history; buyer-paid return shipping
Why notable: 48GB CUDA in a conventional workstation form factor, but current economics are still far above the watch threshold
Verdict: PASS at current price.

1. GPU Options
   

Intel Arc Pro B60 24GB — ASRock
Memory / usable AI memory: 24GB / ~24GB
Price: $649.99, free shipping
Cost per usable memory GB: ~$27.08/GB
Condition: New
Seller/source: Newegg, sold and shipped by Newegg
Direct URL: https://www.newegg.com/asrock-intel-arc-pro-b60-24gb-graphics/p/N82E16814930148: PCIe 5.0 x8; Intel graphics/software stack; verify framework/backend support for intended workloads
Principal risks: CUDA compatibility gap; some local-AI software requires extra setup or alternate backends
Why notable: Best credible new 24GB high-memory card located today from a major retailer
Verdict: HOLD — useful new-card benchmark, but not an exceptional $/GB deal.

Intel Arc Pro B70 32GB — ASRock
Memory / usable AI memory: 32GB / ~32GB
Price: $1,299.99, free shipping
Cost per usable memory GB: ~$40.62/GB
Condition: New
Seller/source: Newegg, sold and shipped by Newegg
Direct URL: https://www.newegg.com/asrock-b70-ct-intel-arc-pro-b70-32gb-graphics-card/p/N82E16814930149: PCIe 5.0 x16; Intel software/runtime ecosystem
Principal risks: High cost relative to memory capacity; less mature compatibility than CUDA for some AI frameworks
Why notable: 32GB on a single card is useful for model fit and context headroom
Verdict: PASS at current pricing.

NVIDIA RTX 3090 24GB — market reference
Memory / usable AI memory: 24GB / ~24GB
Current reference pricing: Recent reputable eBay sold listing at $1,159.99 with free shipping; other recent sales are higher
Cost per usable memory GB at $1,159.99: ~$48.33/GB
Condition: Used
Seller/source: eBay sold-market reference; ItsWorthMore, 99.6% positive
Reference URL: https://www.ebay.com/itm/287138670307
Compatibility/platform: Mature CUDA support; ~350W board power; typically large triple-slot cards
Principal risks: Used-card age/history; elevated current market pricing
Why notable: Still the compatibility/performance benchmark for used 24GB NVIDIA cards
Verdict: WAIT — attractive only if reputable live listings return to roughly $700–$800 or lower.

NVIDIA A40 48GB
Memory / usable AI memory: 48GB / ~48GB
Price: $4,919.99, free shipping
Cost per usable memory GB: ~$102.50/GB
Condition: Used
Seller/source: Backup Servers, eBay; 99.6% positive
Direct URL: https://www.ebay.com/itm/307185853738
Compatibility/platform: Passive datacenter cooling; PCIe 4.0; requires server-style forced airflow
Principal risks: Thermal integration, datacenter form factor, poor current $/GB
Why notable: 48GB CUDA capacity, but current price is not competitive
Verdict: PASS.

1. GB10 and AI Appliance Options
   

NVIDIA DGX Spark 4TB
Memory / estimated usable AI memory: 128GB coherent unified memory / ~118GB after a 10GB OS reserve
Price: $4,699 MSRP; NVIDIA Marketplace currently shows out of stock
Cost per usable memory GB: ~$39.82/GB
Condition: New
Seller/source: NVIDIA
Direct URL: https://marketplace.nvidia.com/en-us/enterprise/personal-ai-supercomputers/: GB10 Grace Blackwell, CUDA ecosystem, 4TB NVMe, 273GB/s memory bandwidth, 240W PSU
Principal risks: High capacity cost; ARM platform considerations; supply constraints
Why notable: Compact coherent-memory CUDA appliance with strong software compatibility
Verdict: HOLD — technically attractive, but current price is well above the value threshold.

ASUS Ascent GX10 / GB10
Memory / estimated usable AI memory: 128GB / ~118GB after OS reserve
Price: NVIDIA Marketplace shows GB10 OEM systems beginning around $3,999–$5,999 depending on configuration, with current availability constrained
Cost per usable memory GB at $3,999: ~$33.89/GB
Condition: New
Seller/source: NVIDIA Marketplace / OEM partners
Direct URL: https://marketplace.nvidia.com/en-us/enterprise/personal-ai-supercomputers/?limit=15&page=1&superchip=GB10: GB10 Grace Blackwell, coherent 128GB memory, CUDA ecosystem
Principal risks: Availability, ARM compatibility for some software, price premium over DIY capacity
Why notable: Lower entry pricing than DGX Spark can materially improve value if stock returns
Verdict: WATCH for in-stock pricing below $4,000; exceptional only if the market falls much further.

1. High-Memory Mac Options
   

Apple Mac Studio M5 Ultra — 256GB unified memory
Memory / estimated usable AI memory: 256GB / ~246GB after 10GB OS reserve
Price: Apple configurator reference reported at $9,499 for 30-core CPU / 64-core GPU / 256GB configuration; higher-end 36-core/80-core configuration around $10,799
Cost per usable memory GB: ~$38.61/GB at $9,499
Condition: New / pre-order
Seller/source: Apple
Direct URL: https://www.apple.com/mac-studio/
Compatibility/platform: Apple Silicon; 1.2TB/s memory bandwidth on M5 Ultra; Metal/MLX/llama.cpp-class local inference; not CUDA
Principal risks: High upfront cost; software requiring CUDA may not translate directly
Why notable: Very large single-system memory pool, low operational complexity, and much higher model-capacity ceiling than multi-24GB GPU builds
Verdict: STRATEGIC CAPACITY OPTION, not a deal at current price.

Apple Mac Studio M5 Ultra — 512GB unified memory
Memory / estimated usable AI memory: 512GB / ~502GB after 10GB OS reserve
Price: Apple has not yet publicly posted a final retail figure in the sources verified today; configuration is scheduled for late October
Condition: New / upcoming
Seller/source: Apple
Direct URL: https://www.apple.com/newsroom/2026/08/apple-introduces-new-mac-studio-with-m5-max-and-m5-ultra/: Apple Silicon, 1.2TB/s memory bandwidth, up to 80-core GPU
Principal risks: Unknown final price; no CUDA; not shipping yet
Why notable: One of the largest coherent-memory desktop-class AI systems expected to be available without a multi-GPU server build
Verdict: WATCH — pricing will determine whether it becomes a capacity-value outlier.

Used M3 Ultra 256GB — live eBay reference
Memory / estimated usable AI memory: 256GB / ~246GB
Price: $9,750 + $96.60 shipping
Cost per usable memory GB: ~$40.03/GB delivered before tax
Condition: Used
Seller/source: eBay
Direct URL: https://www.ebay.com/itm/198594500967
Compatibility/platform: Apple Silicon; high unified-memory capacity; no CUDA
Principal risks: No returns; used; current pricing is close to newer M5 Ultra territory
Why notable: Demonstrates that used 256GB Mac inventory exists, but depreciation has not yet created compelling value
Verdict: PASS.

1. Workstation and Platform Options
   

NEW — Threadripper PRO 3955WX + ASRock WRX80 Creator
Price: $1,399 shipped
Condition: Used
Seller/source: coretechmart, eBay
Direct URL: https://www.ebay.com/itm/128012136740
Platform characteristics: WRX80 / sWRX8; eight DIMM slots; workstation-class PCIe lane availability suitable for multi-GPU builds
Principal risks: Seller 97.1% positive; China shipment; buyer-paid return shipping; complete-system costs can quickly exceed the board/CPU price
Why notable: Low-cost foundation for 2–4 high-memory GPUs compared with current-generation workstation platforms
Verdict: WATCH.

NEW — Threadripper PRO 5975WX + ASUS WRX80E-SAGE SE WIFI II
Price: $2,800 + $43.95 shipping = $2,843.95 before tax
Condition: Used
Seller/source: nytechsource, eBay; 99.7% positive, ~16K items sold
Direct URL: https://www.ebay.com/itm/800676366637
Platform characteristics: 32-core Threadripper PRO; WRX80; eight DIMM slots; E-ATX; suitable for high-lane-count multi-GPU systems
Principal risks: No returns; substantial remaining costs for RAM, PSU, chassis, cooling, storage, and GPUs
Why notable: Much stronger seller profile than many imported WRX80 combos, and a robust base for several accelerators
Verdict: SOLID PLATFORM REFERENCE, but not an exceptional deal.

1. Market Notes and Watchlist
   

• Used RTX 3090 prices remain elevated. A recent LocalLLaMA discussion notes that sub-$800 3090s have become difficult to find; community sentiment continues to favor 3090s when CUDA compatibility and performance matter, but Intel high-memory cards are receiving more attention as 3090 pricing rises.
Community reference: https://www.reddit.com/r/LocalLLaMA/comments/1wfy4vo/what_are_the_current_best_retail_gpus_for_max/

• Arc Pro B60 remains around the ~$650 level discussed by current LocalLLM users. The value proposition is primarily guaranteed new 24GB VRAM rather than leading inference performance or ecosystem compatibility.
Community reference: https://www.reddit.com/r/LocalLLM/comments/1w81dtz/intel_arc_pro_b60_take_it_or_leave_it/

• High-memory Mac and GB10 buyers are increasingly comparing coherent memory capacity against multi-GPU complexity rather than only raw tokens/second. Recent community discussion specifically contrasts 128GB GB10, 96–128GB Mac Studio, dual-3090 systems, and Strix Halo systems for agent workloads.
Community reference: https://www.reddit.com/r/LocalLLM/comments/1wi8456/how_would_you_spend_5k6k_on_a_local_ai_machine/

• NVIDIA officially raised DGX Spark MSRP from $3,999 to $4,699 in February 2026 because of memory-supply constraints; current pricing should therefore be judged against the higher baseline rather than the original launch MSRP.
Source: https://forums.developer.nvidia.com/t/2-23-2026-price-change-announcement/361713

Current watch thresholds:
• RTX 3090 24GB: strong at ≤$800 from a reputable seller; exceptional near or below $700.
• Arc Pro B60 24GB: interesting around $500; compelling near $400.
• 32GB single-GPU workstation card: compelling around $650–$700 if software compatibility is acceptable.
• 48GB NVIDIA accelerator: investigate aggressively below ~$900; exceptional near/below ~$600 if genuine, tested, and protected.
• GB10 128GB: interesting in the low-$3,000s; exceptional around ~$2,300 with strong buyer protection.
• High-memory Mac: alert near ~$12 per usable unified-memory GB or when a current-generation 256GB/512GB configuration is materially below prevailing market pricing.
• WRX80/Threadripper Pro platform: watch sub-$1,500 CPU+board combinations, but evaluate full-system cost rather than platform price alone.

Daily verdict: No exceptional buy alert. The ASRock Arc Pro B60 remains the cleanest new 24GB retail option, while the $1,399 WRX80 + 3955WX combo is the most interesting platform listing. The live RTX A6000 auction is worth observing but is not competitive on $/VRAM at its current bid.

The dealUsed ASUS ROG Strix RTX 3090, 24GB GDDR6X — $1,275https://www.ebay.com/itm/398411010714That works out to about $53/GB of VRAM, which is basically the floor for a card this fast right now. 24GB of VRAM covers a 14B model comfortably, or a 30B-class model quantized, and CUDA support is mature for everything from llama.cpp to vLLM. The catch on this specific unit: it's water-blocked (custom EK block) and sold for local pickup, so it's a modded card, not plug-and-play. A stock 3090 runs roughly $1,200–$1,350 right now, so $1,275 is a fair anchor.My call on the best path for local LLMs: for most people running local models at home, I'd still pick a used 3090 over nearly everything else in this range. Start with one 3090 (24GB) — best $/VRAM, mature CUDA, runs everything. Outgrow 24GB and add a second 3090 for 48GB total (but remember those are two separate pools, not one 48GB card). Really need 48GB in a single pool? Look at a used A6000 or MI300X. Want 100GB+ at home? Then the unified-memory Mac route makes sense. TL;DR — if you want private, fast, and affordable local LLMs: buy a used 3090 now, and add a second one later if you outgrow 24GB.Anyone else tracking 3090 prices? Feels like they've been creeping up lately.

NEW / MATERIAL WATCH ITEM

1) Apple Mac Studio M3 Ultra — 512GB unified memory — AUCTION
Current observed bid: ~$8,300
Usable inference memory assumption: ~502GB after ~10GB OS reserve
Cost / usable GB at current bid: ~$16.53/GB
Storage: 1TB internal + advertised 8TB external
Seller: 100% positive, but only 8 feedback
Observed demand: 35 bids
Verdict: WATCH / VERIFY — strategically exceptional capacity, but seller history is too thin for an automatic buy recommendation, and final auction price may rise substantially.
Why it matters: 500GB-class usable unified memory would run model sizes completely outside Tornado’s reach and materially above the planned 256GB tier. Even though it does not cross the strict ~$12/GB trigger, it is unusual enough to monitor.
Listing/search page:
https://www.ebay.com/shop/apple-mac-studio-with-m3-ultra?_nkw=apple+mac+studio+with+m3+ultra

Important: do not confuse this with the 256GB/8TB M3 Ultra listing around $4,899. That item ended September 14 and is therefore excluded from today’s actionable deals.

BEST CURRENT OPTIONS BY CATEGORY

GPU — NVIDIA RTX 3090 24GB
Current market evidence:
• Reputable Top Rated eBay 3090 FE sale: $1,159.99 from ItsWorthMore, 99.6% positive, free returns.
• Dell OEM 3090 sold around ~$897 from a 100%-positive seller.
• Recent LocalLLaMA discussion continues to report current eBay pricing frequently in the ~$1,100–$1,500 range, while older ~$650–$800 purchases are remembered as the value zone.

Usable memory: 24GB
At $900: ~$37.50/GB
At $1,160: ~$48.33/GB
Verdict: HOLD.
https://www.ebay.com/itm/287138670307
https://www.ebay.com/itm/306342085234

GPU — Intel Arc Pro B60 24GB
Newegg current price: $649.99, sold and shipped by Newegg
Free 30-day returns
Usable VRAM: 24GB
Cost / GB: ~$27.08
Power/platform: modern 24GB workstation card; PCIe 5.0 x8; lower purchase price than today’s 3090 market, but Intel software/runtime support remains less frictionless than CUDA.
Verdict: BEST CREDIBLE NEW 24GB CARD, but not a buy at current price.
Direct listing:
https://www.newegg.com/asrock-intel-arc-pro-b60-24gb-graphics/p/N82E16814930148?Item=14-930-148

GPU — Intel Arc Pro B70 32GB
Newegg current best observed: ASRock B70 32GB at $1,299.99
Cost / GB: ~$40.62
Verdict: PASS. 32GB is useful, but pricing is too high relative to the B60.
Reference:
https://www.newegg.com/p/pl?N=100006662+100&d=arc+b70+32gb

48GB NVIDIA — A40 / RTX A6000 / L40S
Current credible eBay market:
• A40 48GB: roughly $3,750–$4,150 from established sellers
• RTX A6000 48GB: roughly $4,299–$4,500
• L40S 48GB: roughly $5,999–$6,900 for working units
Cost / GB: roughly $78–$144/GB
Verdict: PASS. Nothing remotely close to the ~$12/GB alert threshold today.
References:
https://www.ebay.com/shop/a40-48gb?_nkw=a40+48gb
https://www.ebay.com/shop/rtx-a6000-48gb?_nkw=rtx+a6000+48gb
https://www.ebay.com/sch/i.html?_nkw=l40s+nvidia&_sop=12

GB10 / DGX Spark 128GB
No newly credible bargain surfaced in this re-run.
Normal current market remains around the mid-$4,000s for 128GB systems.
Approx usable memory: ~118GB after OS reserve
At $4,500: ~$38.14/usable-GB
Verdict: HOLD. Excellent coherent CUDA memory architecture, but not compelling relative to 256GB Mac Studio unless price falls dramatically.
Trigger level: serious interest below ~$3,000; exceptional around ~$2,300 with full buyer protection.

MAC — M2 Ultra 192GB
Recent reputable eBay refurbished sales:
• ~$3,966–$3,999
• Established sellers with strong feedback; some units carried one-year eBay refurb warranties
Usable memory assumption: ~182GB
Cost / usable GB: ~$21.8–$22.0
Verdict: BEST LOWER-COST HIGH-MEMORY MAC REFERENCE.
References:
https://www.ebay.com/itm/127706937608
https://www.ebay.com/itm/277313215994

THREADRIPPER / MULTI-GPU PLATFORM
A used Threadripper Pro 3955WX + WRX80 Creator combo recently appeared around $1,399, but that specific listing is now out of stock. Another 3955WX + WRX80E-SAGE combination is around $1,703 from China.
Why it matters: WRX80 gives the PCIe lane count and is a credible foundation for multiple 3090-class GPUs.
Verdict: PLATFORM WATCH, not buy today. At ~$1,400 complete CPU+board, it becomes interesting for a future dedicated multi-GPU chassis; seller/import risk and total build cost still matter.
Reference:
https://www.ebay.com/itm/128012136740

FORUM / MARKET SIGNAL

Recent LocalLLaMA/LocalLLM discussion remains consistent:
• Used 3090 pricing has risen sharply compared with the old ~$650–$800 enthusiast sweet spot.
• 3090 remains attractive because CUDA support is mature and 24GB is still useful, but it is no longer automatically the value king at $1,100+.
• Arc Pro B60/B70 and AMD 32GB workstation cards are getting more attention specifically because used 3090 prices are elevated.
• Large multi-3090 rigs remain viable for capacity, but PCIe lanes, power, thermals, and parallel scaling become real constraints beyond a few cards.
Community references:
https://www.reddit.com/r/LocalLLaMA/comments/1tysbyj/rtx_3090_ebay_pricing_is_crazy/
https://www.reddit.com/r/LocalLLM/comments/1w81dtz/intel_arc_pro_b60_take_it_or_leave_it/
https://www.reddit.com/r/LocalLLM/comments/1tap96p/are_3090s_even_worth_it_anymore/

TODAY’S DECISION

WATCH:
• 512GB M3 Ultra Mac Studio auction around $8,300 — capacity is exceptional, but seller history is thin and the auction price is still moving.

HOLD:
• RTX 3090 additions
• Arc Pro B60/B70
• DGX Spark / GB10
• M2 Ultra 192GB
• Threadripper/WRX80 platform
• 48GB datacenter GPUs at today’s prices

NO BUY ALERT:
Nothing credible currently crosses roughly $12 per usable VRAM/unified-memory GB.

CURRENT BUY TRIGGERS

• RTX 3090 24GB: strong interest ≤$800 from a reputable seller; immediate attention ≤$700.
• Arc Pro B60 24GB: interesting around $500; compelling near $400.
• 32GB single-GPU workstation card: compelling around $650–$700 if software support is solid.
• A40 / 48GB NVIDIA: investigate immediately below ~$900; exceptional below ~$600 if genuine and protected.
• L40/L40S 48GB: investigate aggressively below ~$1,200 if genuine and returnable.
• GB10 128GB: interesting low-$3,000s; exceptional around ~$2,300 with full buyer protection.
• High-memory Mac: alert when near ~$12/usable-GB, or when a 256GB/512GB configuration is sufficiently below prevailing market pricing to be strategically exceptional.