Now this is a fair comparison, two GTX280 against single 4870X2 (this is a two CARD!!)
which one wins when running Crysis at highest setting as possible? GTX280SLI for me
Let's see here.
GTX 280: $419/ea (I'm being generous too - this is the Palit one after rebate, currently the cheapest on Newegg), so $840 total.
HD4870X2: Somewhere around $600 (Again I'm being generous to the 280's, as this is on the high end of the estimated price).
Since when is comparing $840 worth of stuff to $600 worth of stuff a fair comparison?
If I go with more average numbers, the 280's go for $450 each (evga), and the x2 will be more like $500. Now it becomes $900 vs $500.
Oh, and did you know that the 4850 flattens a 9600GSO? That's fair right - they're both a single card...