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SLI GTX 570 for BF3?

post #1 of 76
Thread Starter 
Do these 1.25gb cards have enough vram to run BF3 on maximum settings? I have a single gtx 570 now and was thinking going SLI would enable me to run BF3 at max settings (I have 23" 1920x1080 120hz monitor). But everyone on OCN says BF3 runs out of VRAM on gtx 570, so going sli wont make a difference will it if the total amount of vram isnt doubled if i went sli?
post #2 of 76
As a quick test try running BF3 on max settings with your one card, and monitor your vram usage using Precision or the sort. If it maxes, then it wont be much use getting another. If there is headroom, get another. Test it out!

Edit: and yes, getting another card doesn't double your vram. Another card will certainly help to run on higher settings, but maybe with MXAA tuned down a little bit.
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post #3 of 76
If you do plan on using MSAAx4, you will most likely hit vram wall in most maps.

However, you could just disable Windows Aero while gaming and lower it to MSAAx2 and I doubt you'll get anywhere close to 1.2GB, not to mention the quality differentece between Textures on High or Ultra is NONE, so you can just lower textures to High and free up some more vram (Game needs a restart for this to apply).
    
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post #4 of 76
Thread Starter 
hmm, just did a test on bf3 on ultra settings, got min FPS 17, max 63, average 56. Vram topped out at 1.25GB though.
post #5 of 76
Quote:
Originally Posted by $ilent View Post

hmm, just did a test on bf3 on ultra settings, got min FPS 17, max 63, average 56. Vram topped out at 1.25GB though.

Disable Windows Aero, and lower Textures to High (You won't notice ANYTHING from Ultra).
    
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post #6 of 76
Thread Starter 
ill give it a try.

Just lowered from ultra to high, got min fps 0, max 63, average 58fps. Max VRAM usage 1.15GB.
post #7 of 76
Thread Starter 
max VRAM usage went UP with windows aero off...:/

Min/max/avg FPS all same apart from minimum its at 43 now.
post #8 of 76
I had sli evga gtx 570's u will hit a vram issue.

I used to get it all the time. Fps drops down to 30fps.

They have the power but u wnt be able to play with everything on ultra.

U need to turn msaa down and textures down.

I wud just upgrade to a 670 / 7950 will cost the same if u can sell ur 570
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post #9 of 76
Quote:
Originally Posted by passey View Post

I had sli evga gtx 570's u will hit a vram issue.
I used to get it all the time. Fps drops down to 30fps.
They have the power but u wnt be able to play with everything on ultra.
U need to turn msaa down and textures down.
I wud just upgrade to a 670 / 7950 will cost the same if u can sell ur 570

Agreed.
     
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post #10 of 76
Thread Starter 
but the 7950 is virtually the same if not like 5% better than gtx 570 when it comes to 1080p on BF3...
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