I just purchased an EVGA GTX 570 SC. It works great on all my games, except Dirt 3. I am only getting 37 fps on the benchmark for the game. When using a 5850 it was around 50 fps. Any one having a similar issue, or know of fix.
What settings are you running in the benchmark? My 470 seems ok (though I don't know the benchmark #'s offhand), haven't tried my 5850 yet. Do you have the latest NVidia drivers (as the game is pretty new)?