NVIDIA has released the new WHQL version of the PhysX System Software. The PhysX System Software is included with all latest ForceWare graphics drivers but if you don’t have a GeForce graphics card, you have to install the PhysX System Software to use PhysX based applications such as PhyswX FluidMark. PhysX hardware acceleration is available for all GeForce 8-series, 9-series and 200-series GPUs with a minimum of 256MB dedicated graphics memory.
Download: PhysX System Software Version 8.09.04
Guru3D has posted a little test with a press version of NVIDIA PhysX driver (not yet available to public), version 8.06.12.