Re: Batman PhysX effects. :)
Personally, I have a tri-sli GTX285 setup + a 9800GT on the EVGA x58 Classified with i7 at 4ghz. I disabled the 9800GT to see the difference and it was slower with it disabled. I'm running the game at 2560x1600 16xAA + 16xAF on a 30" screen. I guess if you are cranking up the eye candy, having a seperate card doing the physx does improve performance IF SLI scaling is utilized. I think a 9800GT is the perfect card for physx. Not too slow and I would hate to have another heat producing, power hungry card like another GTX285 in there just for physx. As it is, I hate having tri-sli because of its inefficiency.