Video memory

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Video memory is a term generally used in computers to describe a buffer of writable memory, usually some form of RAM, often dual ported RAM. This buffer is dedicated to the sole purpose of holding the picture information that is displayed on screen (the display device) by the video display circuitry of the computer. In modern 3D graphics cards, there may also be memory (possibly of another sort) dedicated to hold 3D vector data, textures, backbuffers, overlays and GPU programs. Sometimes this takes the form of a Shared Memory Architecture (SMA).

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