All temps for cpu are the single highest core temp - 1 of the cores is consistently 5-6c hotter than the others. Max gpu temp is the single hottest card from the test.
Desktop resolution - 1920x1080x120hz - 3DVision disabled
i7-2600k - 4.6ghz, 1.33v - 3 EVGA GTX 580 3GB clocked 850mhz core, 2100mhz mem, 1.05v
Idle - desktop - sli disabled - 235 watts - cpu idle temp 38c - gpu idle temp 27c (warmed up awhile)
Temps taken from CPUID Hardware Monitor - Watts taken from Belkin (sorry no model # on hand)
***** CPU / watt at wall testing *****
prime95, small ffts - 8 threads - sli disabled - 330 watts - max cpu temp - 59c
prime95, in-place large ffts - 8 threads - sli disabled - 340 watts - max cpu temp - 58c
prime95, blend - 8 threads - sli disabled - 340 watts - max cpu temp - 58c
***** GPU / watt at wall testing - nVidia driver 285.79 - driver defaults - PhysX Auto *****
3DMark Vantage (x86) - sli disabled - avg 450 watts - max cpu temp - 54c - max gpu temp - 43c - Score H20310
3DMark Vantage (x86) - tri-sli - 880 watts avg - max cpu temp - 59c - max gpu temp - 47c - Score H42551
3DMark 11 (x64) - sli disabled - avg 450 watts - max cpu temp - 52c - max gpu temp - 42c - score X2319
3DMark 11 (x64) - tri-sli - 880 watts avg - max cpu temp - 53c - max gpu temp - 44c - score X6450
Heaven Benchmark 2.1 (default settings + vsync disabled) - sli disabled - avg 450 watts - max cpu temp - 46c - max gpu temp - 44c - avg FPS 68.5 - Min 29.6 - Max 159.2 - Scores 1725
Heaven Benchmark 2.1 (default settings + vsync disabled) - tri-sli - avg 850 watts - max cpu temp - 51c - max gpu temp - 47c - avg FPS 168.1 - Min 41.4 - Max 417.5 - Scores 4235
AvP Direct3D 11 Benchmark (default settings) - sli disabled - avg 435 watts (initially spikes to 570 watts until the 2nd scene when the other 2 gpus idle down to 51mhz) - max cpu temp - 46c - max gpu temp - 43c - scores - avg fps 76.2 - avg frame time 13.1ms - # of frames 7988
AvP Direct3D 11 Benchmark (default settings) - tri-sli - 850 watts avg - max cpu temp - 45c - max gpu temp - 45c - scores - avg fps 199.7 - avg frame time 5.0ms - # of frames 20939
Note: I'm tired of testing and wanted to get a "baseline" performance with sli disabled. Tomorrow I'll do 2 and 3 sli, same tests / settings. I'll also do some fraps runs of Skyrim and BF3.
*** Updated with tri-sli scores ***