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X58 based is the only current system which has perfect SLI scaling. GTX295 is wasted on anything else as you cannot unlock the full potential so you may as well go 4870X2 or a single GTX280. IMO pointless buying a gfx card if you can only ever unlock 85-90% of its potential. Save some money and buy a 4870X2 instead. Most of the 295 benchmarks do not show this. Look at benchmarks using I7 (most of which are clocked @ 3.7Ghz or higher which trounces all over a Q6600 overclocked or otherwise) then compare to Q2D. Unless your running above 1920x1200 your unlikely to notice any real world differences anyway over 4870X2.
