Quote Originally Posted by confusedtx5 View Post
I'm pretty sure games have to be coded, at least partially, to be able to take advantage of multi-GPU setups. And last I checked, WoW was not. I've experience fps decreases with SLI enabled before. (both solo, and boxing)
How long ago did you check? :P
Mid 2010 SLI has been pretty decent. Still not officially supported. Do a Timetest, SLI, DX11, Fullscreen -- solo or boxing. You will be surprised
WoW is 'partially coded' for SLI, but it is pretty terrible with DX9, scales quite well with DX11

I gained 22fps on my low, gained 35fps on my average and the high was just stupid.. 155fps increase.