Drivers work great
for me. I'm noticing major improvements across the board. In Dirt 3, I get a 10FPS increase.
With the previous 275.50 beta drivers, I think I was getting an average of 60 something FPS with a minimum of 40 something FPS. I get about the same FPS in Crysis 2 as 275.50, but the game feels A LOT smoother than before. In Alice Madness Returns, I'm no longer getting frequent FPS drops when then are a ton of debris appearing on the floor (physx). Overall, I'm really happy with these drivers and I'm sad to hear that they are not working well for some people.
Edit: I just a ran quick 3Dmark11 test and I got a score of 6761. That's about a thirteen point increase than what is listed in my sig.Edited by NitrousX - 7/29/11 at 11:09am