Sooo... about those tests...

The World of Warcraft SLI tests were very disappointing (surprise, surprise) and there is no need to even
post the results. World of Warcraft is just too CPU bound for SLI to really give it anything more than your
processor can already provide it.

SLI acts funny with WoW in the sense of splitting the GPU load amongst the two cards. In all of the tests I
had run, a single GTX 580 would produce less heat, consume less power, and have lower overall load
compared to its SLI counterpart configuration yet, give the same FPS results. Look below...


GTX 580 3GB No SLI ("Good" Video Preset @ 60 Main/30 Alts (~28 In-Game FPS))



2x GTX 580 3GB SLI ("Good" Video Preset @ 60 Main/30 Alts (~28 In-Game FPS))




In the above screenshots we're focusing on GPU Temp, GPU Load, and VDDC Current (if you'd like). This is
how all of the tests looked. The SLI configuration is working harder, consuming more power, and producing
more heat which only helps rise the ambient temperature of my computer room.

Also, the newest nVidia 257.33 drivers were giving me a slight stutter when playing solo with SLI enabled.
Downgrading to the 270.61 drivers fixed that so I conducted these tests with that driver.

Final word on SLI in World of Warcraft (for now) -- avoid it and just get a great single GPU card. This has
been the same advice most people have been giving out for a few years now and nothing seems to have
really changed (blame the game engine). I am going to keep playing around with it from time to time to
see if I stumble upon the holy grail of video settings that change our lives as multiboxers (don't hold your
breath). As for ATi's Crossfire setups, I have no idea and you're all on your own with that one.