GTX 770 SLI with 2GB vram

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Axzevos

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Hello. I just bought two evga gtx 770's with 2gb vram. So my question is, how much ram do I really get? Some people say it don't double the vram, but I will like 3gb ram, while some people say I still will have 2gb vram still. So if I play Metro 2033 on three monitors. And the game use like 2,3GB vram. Would I lose any fps then?
 
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Axzevos

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But if I play on a game that will use more then 2gb ram. What happen?
 
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David Lugarov

David Lugarov

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+1 for the previous answers by BigMack70, unless running Skyrim with 50 mods, or similar haha, 2GB is fine in terms of VRAM. 1440p, 5760x1080p, those resolutions will be handled easily by 2GB of VRAM. In a triple monitor setup, SLI 2GB 770 or SLI 4GB 770 will perform the same.
 
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Axzevos

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Really? So I will play BF4 at 5760x1080p on same fps if I had a gtx 770 4gb sli?
 
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iam2thecrowe

iam2thecrowe

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err...2gb is not enough 1440p or triple monitor 1080 in many games, crysis 3 and bf3 can go well over 2gb vram useage ,depending on settings used, and when that happens you get a significant fps drop. not to mention future games will look to use more vram given the new consoles will have a lot more ram.
 
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David Lugarov

David Lugarov

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Yup. Maybe, and not for BF4 but for a more graphically demanding game, will you get 1 or 2 fps extra. That's nothing, an overclock gets you 10 or 20 fps extra. :p No point in spending 100$ extra (50$ extra on each card for 4GB version).
 
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Axzevos

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Haha, anyway I will play on one 144hz :). Thanks for the help.
 
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Axzevos

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So why do people buy 4gb then? I don't get it...
 
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David Lugarov

David Lugarov

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BF4 actually is an incredibly well optimized game, BF3 was, and BF4 will be even more so, don't expect anything over a 10-20 fps difference between the 2 games, that's the maximum I'd go for. Drivers are miraculous things.
 
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Axzevos

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So people have got wrongly perspective about vram? They think that more vram is better then it actually is?
 
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bystander

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There may be a few very rare cases where you could run into performance issues at high enough settings with 2GB on 5760x1080p. In those cases, simply dropping AA a touch usually fixes it.

As BigMack70 said, "at playable settings", it is very rare. You'll occasionally see a benchmark done with 8xMSAA, Ubersampling, SSAA enabled, and note how 2GB was not enough, but the FPS were only in the 40 or less range. Simply backing off the AA, you get better FPS, to a point of being much more enjoyable regardless if you had the 4GB or not, and not have an issue.

I frankly find these benchmarks very misleading. I think most people would rather have 60+ FPS with 4x MSAA or lower, than 30-40 FPS with 8x MSAA. Visually, there is very little difference, but performance is much more enjoyable at 60+ FPS.
 
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DirkXXVI

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Ironically enough anyone that wants to SLI a gtx 770 would be better off getting two 4gb cards. Obviously on a single monitor at 1080p very few people will use even over 1.7 GB of VRAM for playable settings. Personally it feels like the average is 1.3 GB right now for AAA games.

However with a gtx 770 in SLI you get more leighway to turn up RAM heavy settings like AA which on games like Crysis 3 and Max Payne 3 use over 2GB of vRAM.

I think for me when I maxed out everything on 1080p Crysis 3 used 2.1GB of VRAM and Max Payne 3 used 2,048 MB of VRAM. Of course on those settings with a single card I get barely 30 fps on Crysis 3 and about 35 FPS on Max Payne 3 so at that point the extra ram on my card means very little. However if I SLI my card in the future I will obviously get much better frame rates.

So in short. Single monitor at 1080p, more then 2GB is overkill unless for some reason max AA is more important to you then playable frame rates. However plans to SLI in the future, not the worst idea to go with a 4GB card.
 
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bystander

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I doubt very much that in either of those cases, 2GB of ram would have limited you in any way shape or form. Just because MSI afterburner reports 2.1GB of vram is used, does not mean that is needed. Games will pre-cache textures and what not if the vram is there, but by no means requires that much vram to prevent performance drops.
 
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David Lugarov

David Lugarov

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How is that even remotely reliable? No Intel PC has run BF4, at E3, now at GamesCom, all PCs are made by AMD, 8350 and Crossfire 7970, so no, sorry, your info is wrong.
 
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