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new crossfire vs sli which is better? - Page 5

post #41 of 43
Quote:
Originally Posted by Chozart View Post
Correct.

I'd say 3/4 is already a very optimistic estimate. In practical terms, 50% to 60% is the most you'll see.

Right now, with 8800's, you don't see much of an increase in benchmarks given the CPU bottleneck that inevitably occurs at lower resolutions. Only at insane resolutions does make SLI-ed 8800's sense.
The 50-60 is more true with SLI than crossfire. When supported, crossfire seems to achieve much closer to 70-80% increase. I recall a game getting nearly 100% once but cannot remember what game or even what article.
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post #42 of 43
I didn't get *that* much out of Crossfire

It varied yes, and with pushing I achieved like 65%... but that was pushing the cards hard, and I don't think I pushed the single card set up that hard.

Oh well... Crossfire might get better results in certain circumstances, but I would not be surprised if you can dig up a game that gives SLI that same benefit.

I think as a general advice, 50% - 60% is a good number.
    
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post #43 of 43
To keep expectations down and not running wild... yup, you're right.
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