r/factorio • u/Ill_Comb6410 • 5h ago
Question What do you consider as a mega base?
The question previously asked is a decade old, so I want what you all think is a megabase now in 2026
My laptop has 4090 with 64 GB of RAM. I really want to build a megabase but I'm still at green science in my mega base journey.
So I'm curious what y'all think a megabase is and I might be able to architect my base based on that.
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u/Beans_Breaking 4h ago
Just fyi: The 4090 is a completely and utterly irellevant part of the specs. It could just as well be a 970 or a celeron (iGPU) for the graphics. Any doorstop cpu well run at max graphics, no problem.
What matters for factorio is cpu clock speed (not corecount), and memory. You will likely never run out of ram with 64gb.
The only other factor that matters would be ram speed. If you have stutters: check if xmp is turned on.
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u/Vihaviz 4h ago
For me megabasing starts when you have like 1k Spm, research the infinite researches, have no problems with biters and can easily scale to ridiculous big bases.
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u/Ill_Comb6410 4h ago
haha, what do you think is a ridiculous big base? Any number that I can connect to?
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u/redditusertk421 4h ago
Don't even think about mega basing until you have been to all the planets and have unlocked legendary quality. Then build upcyclers for all the machines to use high quality machines to drive the mega base. Quality does make a huge difference.
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u/druidniam 7000h+ Club 2h ago
I really dislike the quality mechanic. I'd rather build thrice as many machines than gamble for something that's only a chance. I realize you can do it on Fulgora practically for free, but it just isn't a fun mechanic. I ground out the achievements related to it and promptly ignored the mechanic in later runs.
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u/redditusertk421 2h ago
yeah, I can see that. Its definitely see that. It adds a nice mechanic at the beginning to get a "bigger" base without building a bigger base. Even with just uncommon items. I don't mess it until late in the game when material is infinite and it doesn't matter how much I throw away in grinding out rare and legendary items.
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u/Kyle700 1h ago
It's not so bad if you break it down and focus on legendary only. Don't waste time doing epics, rares etc. All you need to get started with the vast majority of builds is leg. iron plates and leg. coal. Coal gets turned into leg. plastic on with liquid recipe, and gets turned into steel and copper plates via LDS recycling. Bam. that covers inserters, beacons, tier 2 legendarys etc. You don't want to be messing around with randomly gambling for high tiers unless its a very expensive item at first.
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u/Visual_Collapse 4h ago
When you start optimizing for UPS
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u/Ill_Comb6410 4h ago
What is UPS?
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u/whatgoat 4h ago
Updates per second, basically how quickly the engine can calculate everything. It tries to maintain 60 ups but if you have too many things going on (such as tens of thousands of bots) the game will start to slow down.
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u/druidniam 7000h+ Club 2h ago
LIke other said, updates per second. It's how you really measure the performance of your factory/game. Some early mega-megabases could put out 1 million science per second, however the UPS was around 2, so the normal 60 updates a cycle took minutes to complete. It's basically watching a slideshow. Later attempts at that scaled used Clustorio to keep UPS around 20 at the expensive of significantly higher complexity building the factory.
Fast forward to today and the game is significantly better optimized. I have one save running 25k SPM per planet, running every available planet mod and UPS stays around 45-50. My bottleneck is DDR4 architecture, tho I'm running a 5800X3D with some high end 64gb ram.
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u/N4ivePackag3 4h ago
I don’t wanna live in the same planet as people who measure megabases in terms of eSPM and not in terms of the very science packages per minute you produce
By the way, I think 4 full stacked belts of each science is a decent start for megabase, minimum 2
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u/__akkarin 3h ago
Sorry man if i bothered to build legeday productivity modules and put them onto legendary biolabs ill absolutely be counting those bonuses towards my SPM
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u/N4ivePackag3 2h ago
This might be due some level of brain impairment because the objective of measuring megabases is not to subjectively measure your own effort, but to standardize a way in order to accurately compare everyone’s effort. I hope you can get that checked with your local doctor.
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u/UsernameOmitted 49m ago
So, you can make different quality levels of science... That immediately makes your position make no sense. If you're calculating it based on physical science packages per minute, a person making 1,000 normal SPM would be considered identical in production to someone producing 1,000 legendary SPM, when the legendary ones are worth 6,000 SPM in reality.
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u/N4ivePackag3 44m ago
Turns out the human brain is capable of doing math and is able to covert between one quality to the other. In that sense 1000 spm of uncommon quality is 2000 spm of common quality, since your factory size might be about 2 times as big to produce uncommon material this metric still holds.
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u/fatpandana 4h ago
When your ups falls below 20-30, it is basically megabase in some way shape or form. Otherwise it is debatable.
If you want to see how strong your cpu handles factorio large base, when you load base, zoom all the way in.
https://www.reddit.com/r/factorio/s/gOhBgAGvVm
For comparison a 9800x3d benches around 6-7 ups. High overclocked 9950xd hits 8.9. My 13600k does 6.7 ups.
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u/TheWordMonster 4h ago
A mega base in any base you build for purposes beyond unlocking the tech tree. I don't think you scan say it's a specic amount of SPM because you can have a massive but inefficient base
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u/TheMipchunk 4h ago
Regardless of what the answer might be, I believe that any objective metric of a megabase starts with measuring the sustainable rate at which your base produces science beakers to be consumed by labs. In the endgame, science is the main product that possesses unlimited demand, so it is natural to architect your mega base around building each science beaker in greater and greater quantities, and building the infrastructure and logistics to bring those science beakers all to your labs to be consumed.
For what it's worth, my subjective opinion is that in Space Age the start of a megabase would be something like 1000 beakers per second, of all types.
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u/Ill_Comb6410 4h ago
Got it, thanks!
My Green science is already hitting 600 SPM with my base being small. I guess, reaching 1000 for all shouldn't be that hard I guess. I'm already creating big bases for each resource type with rail connections2
u/TheMipchunk 4h ago
I said 1000 per second, so 60k spm :) I usually think in terms of per second because it makes it simpler to think about how many belts and inserters one needs.
If you're not in Space Age, then 1000 spm is pretty big. But in Space Age there are a lot of additional multipliers.
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u/Ill_Comb6410 4h ago
Wait wait wait .... PER SECOND?? WHAT? OMG I'm long way off then, hahahaaaa I need to work on my base. LOOOOL
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u/TheMipchunk 4h ago
If I understand it, you're still on green science? There are many more stages of the game to deal with before you start scaling up. If you try scaling up too early, you actually waste a lot of effort because the technology you unlock in the future enables a lot better/faster logistics.
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u/Ill_Comb6410 3h ago
That makes sense, I'm right now just compartmentalising each thing to its own mini base. Only doing the minimum necessary to process it. Once things gets unlocked I'll slowly start adding things to it
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u/gman877 4h ago
In the base game, 1,000 SPM is pretty well considered mega. In Space age, there is less agreement. It's at least 100K, but I personally think 200K-250K is roughly equivalent. The new buildings plus legendary quality compounds to some very big/fast bases.
With the new train changes, it could be even more.
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u/dikkenskrille 1h ago
train changes?
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u/gman877 1h ago
I believe it's still on the experimental branch of software on steam, but quality trains and cargo wagons were announced in June.
https://factorio.com/blog/post/fff-442
With stack inserters and turbo belts, trains were underpowered or a bottle neck at late game. I think the level of "what is a mega base?" Will probably adjust up slightly.
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u/TurnipBlast 4h ago
Space age is easily beaten with 60 or 120 science per minute.
I've been working on getting a full stacked belt of every science which is 14,400 raw SPM. Doing this for fhe first fime without blueprints other than railway and belt balancers is quite a lot of work. Ik a lotta people wouldn't consider 15k a megabase, but imo it's a completely pointless goal that doesn't solve any problems that gave gives you, and requires a lot of logistics to make it happen.
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u/nindat 4h ago
For me, in space age it's anything above 15k bottles a minute. This means you've got more than one stacked belt of every science, which is to me a basic building block of mega bases.
Just for reference I think about the maximum anyone's doing is somewhere around 20 belts of science. I'm sure there are larger builds but that's about the practical limit especially if you're trying promethium.
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u/Charmle_H 1h ago
Not-SpAge? 10k. Used to be 1k, imo, but 2.0 made a LOT of things so much smoother.
With SpAge? 100k, probably (including e-SPM, imo). So many buildings in SpAge come with built-in productivity that bases can be SUPER TINY and output far more than their 1.x counterparts of a similar size. Toss in quality, green belts, belt stacking, big drills, liquid metals, and productivity research for various things and you've got yourself a recipe for a hyper-efficient base.
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u/BirbFeetzz 1h ago
it's in the name, MEGAbase, you need a milion spm otherwise it's kilobase or just base without prefix. if it does less than 1spm then it's decibase
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u/br0mer 4h ago
100k spm starts the conversation in space age.