ok i know joining ati means loosing physics , my ex nvidia card was never able to run it properly anyway . but some games are forcing me to install physics like two worlds 2 , is this game gonna apply all the physics work on my cpu now? because i dont see the option on turning it off ,
Most Physx games don't even have gpu acceleration anyway. I think Two Worlds 2 is one of them. You can still use your old nvidia gpu for games that support it however. http://forums.guru3d.com/showthread.php?t=318870
that means the physics are then run by the CPU not the GPU. also you can use a few tricks to use your AMD-ATI card for primary display and your older NVIDIA for Physicss.
I cant wait for nvidia to quit beating that dead horse....it's just a worthless gimmick that does nothing but kill performance on all hardware. if your gpu doesn't support it, nvidia offloads that unoptimized garbage on to your cpu to try to make you believe you need to (upgrade) or buy into their bull****....... the performance hit in no way justifies the the minor effects that can be done much more efficiently without proprietary scamware.