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sli 16x vs 32x

post #1 of 11
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i was wondering if there would be a drastic change or any change at all in performance if you run 2 SLI cards at split 8x, 8x or 2 SLI cards at full 16x, 16x
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post #2 of 11
double the bandwith. lots more performance!
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post #3 of 11
Quote:
Originally Posted by Chillaxed
double the bandwith. lots more performance!
lots more preformance? Try like 20% more.. SLi is about the biggest waste of money on the market.
They run at 16x 16x each.
    
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post #4 of 11
Even if you double it, That doesn't mean your cards will be able to fill that bandwith..or even come close
    
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post #5 of 11
Is it even 20%? Think about benchmarks, high grahpics benchmarks with like AA and AF on full; it's true SLi does get better frames, but not by much. I think this is because the card reached max performance already, which means it's not taking full advantage of the 8x 8x bandwidth there is already. Now this is a complete guess, it may be the 8x 8x limiting the card. If someone can show benchmarks of card in 8x 8x and then in 16x 16x, then that would answer a lot of questions.
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post #6 of 11
Double the bandwidth, little to no actual performance increase, in benches I've seen 2 7800GTX 512's in SLI x16 only saw UP TO 15% increase over regular SLI but I'd say its worth it FOR ME since the P5N32-SLI Deluxe happens to be my favorite Intel mobo out at this time, and it just so happens to be SLI x16 lol.

EDIT/// http://www.tbreak.com/reviews/articl...6&pagenumber=2 LOL in 3D Mark 05 0% to 1% improvement, WOW!

http://www.tbreak.com/reviews/articl...6&pagenumber=4 CoD2, SLI x16 is 5% BEHIND regular SLI, ***?

http://www.tbreak.com/reviews/articl...6&pagenumber=5 CoD2, AA and AF turned up, SLI x16 pulls ahead....a little.

etc. I think I've made my point, SLI x16 shows a LITTLE improvement only with higher resoultions and AA and AF turned way up, other than that there's really no point to it BUT I think if you're getting SLI, you may as well go all the way and be prepared for the future since newer GPUs will only use more and more bandwidth.
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post #7 of 11
Its really only good if you run SLI without the bridge. Most games only get a few more FPS, but I would imagine that is due more to chipset revisions rather than simply adding more lanes.
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post #8 of 11
I read somewhere in a magazine some advertising for the new ASUS board with true double x16, they said you can see performance of upto 10%! so not a hell of a lot unfortunately
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post #9 of 11
Thread Starter 
Quote:
http://www.tbreak.com/reviews/articl...6&pagenumber=4 CoD2, SLI x16 is 5% BEHIND regular SLI, ***?
haha thats pretty sad, guess ill just stick with the 8x 8x split and get full 32x 10 years later
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post #10 of 11
Quote:
Originally Posted by Chillaxed
double the bandwith. lots more performance!
Not lots. A little.
Very nice!
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Very nice!
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