Nvidia VS ATI Beta Experience

[Cato]

Hey All,

Im trying to plan out my gpu upgrade, my 4850 is really showing it's age. I was leaning towards the 7850 or 7950 (depending on a last minute budget decision) until I found out about physx in PS2.

Does anyone have any in game experience with the 7850, 7950, GTX 660 TI, or equivalent 200$-300$ cards? What were your opinions on the performance?

Is the lack of physx in the ATI cards really going to hold back the experience? The ATI cards seem to really provide better performance for their price, but physx throws a wrench in the whole thing.