Thank you. I'll post my results along with a little perspective

Quote Originally Posted by Eastcoasthandle View Post
Hold on now, which version of Grid did you test? Grid v1.0 did not support multi gpus. V1.1 does support multi gpus and, v1.2 was just release late last week. The game IMHO still needs more work and no one knows if another patch is forthcoming.
Grid v1.0 does support multi gpu.

SLI on: 51 fps
SLI off: 27 fps

Settings: 2560 x 1600, everything maxed except AA only at x4 MSAA, GC = on, and forced AF x16.

I haven't upgraded from 1.0, because I have heard too many problems with the patches. Also I don't need it, as the game runs fine and without errors.