PCWorld 101 Graphics Card Primer on GPU’s, OpenGL, DirectX, OpenCL and more

Want to know what a Graphics Processing Unit (GPU) is and why it is important to you? PCWorld has a great getting started primer for folks wanting to know more about GPU's and the things that make them tick. Covering the major players like NVIDIA, AMD / ATI and Intel, and the main API's like DirectX, OpenGL and newcomer OpenCL. Read on to learn about CUDA, ATI stream, SLI and Crossfire and more.