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Crossfiring 6870s on a x16/x4 mobo - Page 2

post #11 of 20
I've seen a few sites test the 16x-4x config and there was no mention of stuttering. I have also heard of people getting stuttering in any config as well. Seems to depend more on the CAP, drivers and the particular game.
I'm going to do 16x-4x this week with 2 5770's. I'll report back with my findings.
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post #12 of 20
Quote:
Originally Posted by Nixuz View Post
I've seen a few sites test the 16x-4x config and there was no mention of stuttering. I have also heard of people getting stuttering in any config as well. Seems to depend more on the CAP, drivers and the particular game.
I'm going to do 16x-4x this week with 2 5770's. I'll report back with my findings.
I would be interested to hear about your experience.
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post #13 of 20
Quote:
Originally Posted by BababooeyHTJ View Post
I would be interested to hear about your experience.
me tooo
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post #14 of 20
This question has been answered a few times before.http://www.hardocp.com/article/2010/...x16x16_vs_x4x4

The difference in frame rate is negligible.The real question is whether you want crossfire or just go with a single card.

I have benchmarked both 5770's and the 580s and the outcome was the same,frame rate maintained an average consistency on par with x8x8 and x16x16, although it's interesting to see x4x4 manage higher frame rates in certain games.
Edited by VeteranD13 - 1/31/11 at 3:20am
    
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post #15 of 20
Quote:
Originally Posted by VeteranD13 View Post
This question has been answered a few times before.http://www.hardocp.com/article/2010/...x16x16_vs_x4x4

The difference in frame rate is negligible.The real question is whether you want crossfire or just go with a single card.
That is really surprising. So PCIe 2.0 x4 won't bottleneck SLI at 2560x1600.

I would imagine PCIe 1.0 x4 would bottleneck SLI though, but it has yet to be tested.
post #16 of 20
Thread Starter 
Quote:
Originally Posted by VeteranD13 View Post
This question has been answered a few times before.http://www.hardocp.com/article/2010/...x16x16_vs_x4x4

The difference in frame rate is negligible.The real question is whether you want crossfire or just go with a single card.

I have benchmarked both 5770's and the 580s and the outcome was the same,frame rate maintained an average consistency on par with x8x8 and x16x16, although it's interesting to see x4x4 manage higher frame rates in certain games.
Thank you for the link, should I assume 16/4 would be about .5 fps (negligible) stronger than 4/4?
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post #17 of 20
I was under the impression that due to the x4 lane, both slots are downgraded to 4x-4x when running in that config. As a previous poster mentioned, it doesn't seem to really affect it anyway.
I guess I'll see on Wed.
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post #18 of 20
Quote:
Originally Posted by Nixuz View Post
I was under the impression that due to the x4 lane, both slots are downgraded to 4x-4x when running in that config. As a previous poster mentioned, it doesn't seem to really affect it anyway.
I guess I'll see on Wed.
doesnt affect i have a 16x4x coonfig and it is really powerfull but with lots of issues :S
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post #19 of 20
Thread Starter 
Quote:
Originally Posted by Nixuz View Post
I was under the impression that due to the x4 lane, both slots are downgraded to 4x-4x when running in that config.
Interesting, can anyone confirm this?
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post #20 of 20
whoops.
Edited by Nixuz - 2/2/11 at 4:20pm
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