Video memory is a term generally used in computers to describe some form of writable memory, usually RAM, dedicated to the purpose of holding the information necessary for a graphics card to drive a display device. In modern 3D graphics cards, the video memory may also hold 3D vector data, textures, backbuffers, overlays and GPU programs.
This memory sometimes takes the form of dedicated memory chips integrated in the framebuffer, and sometimes takes the form of a Shared Memory Architecture (SMA).
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