I played AA on HD4770+Athlon X2 7750+1440x900reso. It was very smooth. Of course, PhysX is off by default and I never bothered to turn it on as it can bring the game frame rate to standstill.nvidia10 said:Hi. My friend wants to buy Batman Arkham Asylum. But, before that he wants to confirm whether it runs on his sapphire hd 4850 512 as it requires physx. Does it run smooth at 1680x1050 at high? His proccy is c2d e7500 stock. 2Gb ddr2 ram.