What's the monitor resolution, and what games do you plan to run? If the answers are anything other than "1920x1200 or above" and "Crysis" then it's overpowered.
Also, if you really wanted "Extreme", wouldn't it have been cheaper AND faster to get two GTX295s in quad-SLI?
Here are some comparisons (I'm going to ignore the synthetics)
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3x GTX285 --- 2x GTX295
3DMark Vantage, Performance:
32473 --- 30297
3dmark Vantage, Extreme:
16287 --- 15139
Crysis Warhead, 1920x1200, fps AVG
--- 56 fps 58 fps
Crysis Warhead, 2560x1500, AVG fps
--- 42 fps 56 fps (!)
Far Cry 2, 1920x1200, AVG fps
--- 161 fps 168 fps
Far Cry 2, 2560x1600, AVG fps
--- 146 fps 145 fps
Stalker Clear Sky, 1920x1200, fps AVG
--- 78 fps 73 fps
Stalker Clear Sky, 2560x1600, AVG fps
--- 50 fps 55 fps
High AA / AF test, Far Cry 2, 1920x1200, 8xAA, AVG fps
--- 135 fps 130 fps
3DMark Vantage Extreme
~ ~ 43% --- 65%
Stalker CS, 1920x1200, fps AVG
~ ~ 41% --- 46%
Stalker CS, 2560x1600, AVG fps
~ ~ 53% --- 55%
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2xGTX295 wins in 6 out of 9 actual game tests (or 7 out of 12 including synthetics). It's also cheaper.
