CUDA - Wikipedia, the free encyclopedia
CUDA is the computing engine in NVIDIA
graphics processing units or
GPUs that is accessible to software developers through industry standard programming languages.
its very useful for Rendering power and many softwares are taking advantage of its power such as : ADOBE CREATIVE SUIT CS5 | MAYA | AUTODESK | SOFTIMAGE etc..
physix :
PhysX - Wikipedia, the free encyclopedia
..thus offloading physics calculations from the
CPU, allowing it to perform other tasks instead — resulting in a
smoother gaming experience and additional visual effects.