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Old September 29, 2011, 12:01 PM
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Supergrover Supergrover is offline
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Join Date: Dec 2006
Location: Okanagan Falls, British Columbia
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Originally Posted by Arinoth View Post
Another thing to note is that when you crossfire or sli you do not then total the two cards vRam and say thats how much you have. You only have as much video ram as the lowest card that you have. If you have say 2 580 1.5GB, that means each card has 1.5GB of memory it can use, but you now have two cards performing the graphics computations rather then one, resulting in increased performance.
Thanks Ari, I should have made that clear in my post.

And no Performance doesnt scale with more cards, so say a 580 = a performance value of 10
adding another will not = 20
adding 2x more 580 will not = 30
The "sweet spot" seams to be 2x setups.
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