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SLI - Random easy question...

The 8600GTS show how well SLI. Even with 2 of them paired together they are very close to a 8800GTS considering thier specs. But the only problem is the price.
 
Perfect_Chaos said:
Even quad sli isnt 100% better than one card.

2 cards = usually 30% increase in minimum fps (where it counts) and thats at higher resolutions anyway

not really that great, its a shame they cant make it better if they could make 2 cards 60+% better in all games then it would be well worth the money.
Click to expand...

Quad SLI doesn't work well due to the fact that in order to work it has to split the screen in 2 first and then get each pair of 2 cards to do AFR on their half of the screen - so you need games that work well with BOTH SFR and AFR to get any performance increase unfortunatly games tend to either work with SFR OR AFR not both... for benchmarking with a fast enough CPU you could probably batch up 4 frames in a row - but for gaming that would produce noticeable input lag... not to mention prediction issues...

Except in GPU limited situations games that support AFR will generally get a 99% performance boost on 7 and 8 series cards the amount lost to overhead is around 1%... if you have nHancer look at the list of games that support AFR - its huge...

While SFR games give a more varied performance gain in SLI mode - they still get a good boost it wouldn't be unrealistic to say they get a 1.6x performance boost on average.
 
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