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Help choosing my crossfire/sli setup. - Page 2

post #11 of 16
Quote:
Originally Posted by Somedude168 View Post
Because im getting a sandy bridge mobo no room for 3 cards as far as I know. Id rather run 3 6950's unlocked but I cant sadly. So im asking what would be the best 2 card setup excluding 2 6990's or 590's cause quadfire scaling sucks. I'm assuming it would be a 6990 plus a 6970, but i'm not sure which is why i'm here looking for opinions.
if quadire scaling sucks ... it's obvious because no processor has been proven to throttle 4 gpus , in fact a overclocked 2600k barely holds up 3 gpus until eyefinity or surround is factored in

but for your resolution

here is the answer

http://hardforum.com/showthread.php?t=1593997

go 6990+6970 trifire

Crysis 2560X1600, 8AA, 6990+6970: 59 fps,
580 SLI, 32 fps. DOUBLE the framerate for the same price.
1000$ against 1000$, 2 cards against 2 cards.

Metro 2033. 2560X1600 and 5760, 4XAA. Same results. 6990+6970 dominating 580 SLI. Same price. Early 6990 drivers.
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white phantom
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post #12 of 16
6990x2 quad CF.
Quote:
Originally Posted by sirsycott View Post
if quadire scaling sucks ... it's obvious because no processor has been proven to throttle 4 gpus , in fact a overclocked 2600k barely holds up 3 gpus until eyefinity or surround is factored in

but for your resolution

here is the answer

http://hardforum.com/showthread.php?t=1593997

go 6990+6970 trifire

Crysis 2560X1600, 8AA, 6990+6970: 59 fps,
580 SLI, 32 fps. DOUBLE the framerate for the same price.
1000$ against 1000$, 2 cards against 2 cards.

Metro 2033. 2560X1600 and 5760, 4XAA. Same results. 6990+6970 dominating 580 SLI. Same price. Early 6990 drivers.
He's buying the 3GB version if hes going the 580 SLI route.
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post #13 of 16
Thread Starter 
K well after some of your opinions I'm leaning towards 6990+6970. There's no known issues with this combo with a sandy bridge mobo right? I asked on another site and they told me it was a stupid idea and it would run bad on my mobo. Which is what is worrying me. Thanks again.
post #14 of 16
Thread Starter 
bump.
post #15 of 16
Get 2x 6970, they are killer cards in CF and will eat anything you throw at them. Save the rest.
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post #16 of 16
Quote:
Originally Posted by Somedude168 View Post
K well after some of your opinions I'm leaning towards 6990+6970. There's no known issues with this combo with a sandy bridge mobo right? I asked on another site and they told me it was a stupid idea and it would run bad on my mobo. Which is what is worrying me. Thanks again.
they're telling you it won't run right, when it's the most powerfull platform at this moment? they're idiots if they think a phenom is any better, and x58 will barely yeild 5% difference clock for clock if it ever gets that high in the first place...

it's not gonna work bad i'll tell you that for sure, but because of the fact that your resolution is high enough to legitimize the 6990+6970


the only reason i would think it should be better used is that you'd want a higher resolution "eyefinity 3x1 setup" to effectively utilize your cards.... but i hate bezels so bleh

lower resolutions will be cpu based bottle neck, so logically there should be a point in higher resolution where you'd utilize a constant 60fps with max everything on certain games, my personal opinion is that you'll do 40-70fps at 2600x resolution, so that wouldn't be overkill

even then, if i'm bottle necked at low resolutions , and 1080p gives me a "bottlenecked fps" at 100fps, i wouldn't care

sandy bridge platform should be ok, even though it has less pci express lanes than x58, an overclock will help you unleash the fury a bit more on sandy since they can acheive higher clocks,
Edited by sirsycott - 4/6/11 at 1:01pm
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white phantom
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