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GTX 580 SLI for 3d surround - any point in upgrading?

post #1 of 5
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I recently bought 2 EVGA GTX 580's to run in SLI on the rig I'm building for gaming, which I plan to run nVidia 3d surround on (5760x1080). Unfortunately I only read about vram requirements for 3 monitor resolutions after buying them, and realise I'll probably be short of vram because I didn't get the Palit 3gb 580's. I was thinking of upgrading to 3 EVGA GTX 580's in tri SLI later on, but is there any point if I'm still going to be limited by 1.5gb of vram? Will the extra 580 not add that much to the performance if the 1.5gb vram is not enough? Sorry if this is a stupid question, I don't know too much about how GPU's work.
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post #2 of 5
depends on the game really. you should be fine with 1.5 GB if u turn off antialiasing and (very rarely) turn down the textures in some of the more intensive games (crysis, metro)

for reference, i can max crysis just fine with 768 MB ram @1920x1080 AA off. there are few stuttering (although i think that's my system ram mostly), but it's very enjoyable.
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post #3 of 5
3D surround uses 3d tech, so your monitors must support it and you have to have the glasses.

2D surround, which is what I have, is using triple monitors and does not require 3d equipment. two gtx 580 sli should be ok, but I have gotten a lot of comments and questions regarding my sli setup and the 1.2 gb of ram on each card. I'll be running games in 5760x1080 next week and if the experience sucks, I'll be switching to higher vram cards (possibly ati/amd)
post #4 of 5
You'll be good for no AA on everything, and some AA on the majority of things. Start w/two and start watching vram usage and FPS and what not using AB OSD. After you have a good sample of games you've tried, you should be able to get an idea how often you are in need of more GPU power, and how often you're in need of more vram.
    
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post #5 of 5
Quote:
Originally Posted by Ariel92;13497478 
I recently bought 2 EVGA GTX 580's to run in SLI on the rig I'm building for gaming, which I plan to run nVidia 3d surround on (5760x1080). Unfortunately I only read about vram requirements for 3 monitor resolutions after buying them, and realise I'll probably be short of vram because I didn't get the Palit 3gb 580's. I was thinking of upgrading to 3 EVGA GTX 580's in tri SLI later on, but is there any point if I'm still going to be limited by 1.5gb of vram? Will the extra 580 not add that much to the performance if the 1.5gb vram is not enough? Sorry if this is a stupid question, I don't know too much about how GPU's work.

If you plan to run 3D and surround (two different things), a couple of 580s will be a bit under-powered in some games, mainly DX11 games with tessellation and/or with AA.

If you plan to just doing surround, you can be ok, but you will be limited to just 2xAA max in some games.
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