Physx is an open software standard any company can freely develophardware or software that supports it. Nvidia supports GPU acceleratedPhysx on NVIDIA GPUs while using NVIDIA GPUs for graphics. NVIDIAperforms extensive Engineering, Development, and QA work that makesPhysx a great experience for customers. For a variety of reasons - somedevelopment expense some quality assurance and some business reasonsNVIDIA will not support GPU accelerated Physx with NVIDIA GPUs whileGPU rendering is happening on non- NVIDIA GPUs. I'm sorry for anyinconvenience caused but I hope you can understand.