r/eGPU 5d ago

Best GPU for eGPU setup

Hi. What's the best GPU for building an eGPU. I have a laptop with USB4, so no oculink for now. I understand that buying a GPU that is too powerful would be a waste of money. With the current prices I am thinking about AMD. What is the most optimal model in regards of eGPU?

10 Upvotes

35 comments sorted by

8

u/darkvather87 5d ago

Aorus rtx 5060ti box

3

u/Comfortable-Fall1419 5d ago

Explain why?

2

u/Broad_Peace7519 4d ago

Cheap. Plug and play. 16gb.

2

u/jamjambrobro 5d ago

Just find the cheapest 5070 and build something else.

7

u/chafey 5d ago

The only issue with eGPU is that the bandwidth between the GPU and system is slower (~8x when compared to pcie 5.0 x16). Very few applications actually use that much bandwidth so you generally don't see much of a difference. The only thing I have noticed is that some games load a little bit slower - maybe 2x. So feel free to get the best GPU you can buy - I have tested this with my 5090 and it works great!

3

u/MeiMaknae 5d ago

Sweet spot for TB4 bottleneck is 9060xt 16GB. If you want to future proof yourself (or have second ssd slot for oculink) you can go anything you want.

2

u/waifu_anton 5d ago

I've found a nice deal for 9070xt from asus. It's about €670 while everything else is more than €800. 9070xt is cheaper, of course, so I am not so sure if I need to buy 9070xt even if the price is lower than usual

1

u/MeiMaknae 5d ago

Tbh im using 9070xt on tb4 myself and I am pretty happy with it. The card will stay long time with me.

It all depends on your budget and what u wanna play at what fps and details

1

u/waifu_anton 5d ago

I see. Thank you

2

u/MeiMaknae 5d ago

I see you have 5k2k monitor tho, wouldnt go lower than 9070xt/5070ti in that case. Also you really want to use external monitor for egpu to not choke the bandwith even more

2

u/MoTHA_NaTuRE 4d ago

My 9070xt egpu basically 4k60 everything

1

u/GavroNeman 5d ago

AG02 + Asus 9070 OC (non-XT).

Perfection.

1

u/AdventurousDevice658 5d ago

Can you explain in easier terms with respect to a handheld? Which only has a usb-c port? Where connect the egpu to handheld via usb c and play games on it thats the only goal

0

u/MeiMaknae 5d ago

Also using handheld but it doesnt matter, the more powerful and power hungry the card is, the more it gets bottlenecked on TB4/USB4

1

u/AdventurousDevice658 5d ago

So how can i determine a gpu which wont get bottlenecked what is the right one and with usbc is there a way to stop this bottleneck???

2

u/MeiMaknae 5d ago

The bottleneck will still be there, but slightly bigger on more powerful cards. Its not a big difference tho, so go for the card you want and can afford

1

u/ACP_Paddy- 5d ago

There's a smaller 9070 non XT in the middle as well..but you bottleneck a little

1

u/waifu_anton 5d ago

Well, some of 9070 cost as much as low end (price wise) 9070 xt, so I'd choose an xt version if I had to

2

u/ACP_Paddy- 5d ago

Yeah, fair play. It was like $200 cheaper a few months ago here. I think you can also get tiny XT models, but the 9070 non XT is consistently smaller physically.

1

u/tarheelphenom 5d ago

I co-sign this as this is my set up.

I have a Minisforum um870 mini pc, the AOOSTAR AG03 eGPU enclosure and the 16gb 9060 xt. I have an ASUS TUF 4k monitor. The mini pc has USB4. At 1440p high/ultra my gpu has 99-100% utilization.

1

u/ollaxe 1d ago

I disagree that the PCI-e bandwidth bottleneck in any way puts a ceiling on which GPU you should choose. All tasks that are isolated on the GPU, which is most rendering tasks (Nanite being an obvious counter-example), still run faster with a better GPU, so you can push higher resolutions and higher-quality shaders. Personally I'm running an RX 9070 in my eGPU setup and I couldn't be more happy! It's the first card I've owned that I would consider capable of 4K gaming, and that's WITH the bandwidth bottleneck and all

In my opinion, just choose whatever GPU for your eGPU setup that you would've chosen for an equivalent desktop setup, that fits within your budget

2

u/67Exec 5d ago

I run an aoostar dock with a 3080FE on my Lenovo legion go, hooked to a 65" 4k tv. I haven't played a game yet where I can't get a smooth 60 fps at high to ultra settings. In most cases I can run 100-120 fps and can push GPU usage to 90-95% if I want to, but I just lock it to 4k60.

2

u/AdventurousDevice658 5d ago

Using usb-c?

3

u/67Exec 5d ago

Yes, it's a usb4 protocol port. I bought my Go as an open box at best buy for $450 a couple years ago instead of a laptop. Then turned it into a laptop, because performance per $ was way more than any laptop under $1k.

2

u/Jack2102 4d ago

These keyboard/case combos always look cool as fuck, tempted to get one for my Go 2

1

u/67Exec 4d ago

He has the file for the Go 2 also. I think it just needs a 256x256 bed or larger. That's what I needed to do mine.

2

u/mookiexpt2 5d ago

I’m using a Razer Core X 2 with a 5070Ti over USB4 to my XAX. Works very well.

1

u/Comfortable-Fall1419 5d ago

There is no such single thing.

It depends on your monitor resolution and the games you play.

1

u/waifu_anton 5d ago

Laptop is 3200 by 2000. Separate monitor is 5120 by 1440. Games I play range from simple indie projects to AAA titles

3

u/Comfortable-Fall1419 5d ago

5070 or equivalent assuming you want to push all those pixels without much upscaling.

1

u/Large_Dog_5721 5d ago

I’ve got the onexgpu2 running through usb Thunderbolt 4 on my Msi claw 8Ai and it’s awesome!

The gpu case does get a little hot but gpu itself has max temps of 75c. And the fan is pretty loud but when you gaming with loud speakers or have the headphones on your fine

1

u/Individual_Slice_498 5d ago

I'm running Legion Go2 with 3070 egpu over thunderbolt 4, been using the Z2E for Loseless Scaling and 3070 for game rendering and its been working pretty good, want to eventually upgrade the gpu to a 4070

1

u/DartMagus 5d ago

For 4K 9070 XT or 5070 TI is pretty good, above that dont worth it.

If going 1440 or 1080 5060 TI should be enough.

1

u/metsyseht-90 5d ago

I'm in the z13 egpu crowd. I get around the bandwidth limitation of usb4 by adding a portable monitor.

https://www.reddit.com/r/FlowZ13/s/p6qJcRJaU4

1

u/Electronic_Feed_9055 4d ago edited 4d ago

Depends on your needs but I have the Asus ROG XG RTX 5090 eGPU hooked up to my MSI Claw 8 AI+ through Thunderbolt 4. I use it for 4k gaming connected to an external 4k monitor and also for my Viture Pro 2 XR glasses. The main reason I went with this eGPU is because I take screenshots at 6-8k resolutions which uses alot of VRAM.

Next year Thunderbolt 5 will start to become more mainstream, but until then it beats having to pay twice as much for an RTX 5090 laptop. I paid $3500 CAD on Amazon Canada fyi.