Huang revealed that Nvidia's strategy is to take the PhysX engine and port it onto CUDA. For those not in the know, CUDA stands for Compute Unified Device Architecture, and it's a C-like application programming interface Nvidia developed to let programmers write general-purpose applications that can run on GPUs. All of Nvidia's existing GeForce 8 graphics processors already support CUDA, and Huang confirmed that the cards will be able to run PhysX.
GeForce 8 Series to get PhysX...
GeForce 8 Series to get PhysX...
Seen this over at The Tech Report