Nvidia PhysX is a powerful physics engine which enables real-time physics in leading edge PC and console games. PhysX is designed specifically for hardware acceleration by powerful processors with hundreds of cores. The only way to get real physics with the scale, sophistication, fidelity and level of interactivity that dramatically alters your entertainment experience will be with one of the millions of Nvidia PhysX-ready GeForce processors.
Download: Nvidia PhysX System Software 9.11.1111