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Video memory is a term generally used in computer
Computer

A computer is a machine that manipulates Data according to a list of Code .The first devices that resemble modern computers date to the mid-20th century , although the computer concept and various machines similar to computers existed earlier....
s 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
Display device

A display device is an output device for presentation of information for visual, tactile or Hearing_ reception, acquired, stored, or transmitted in various forms....
. In modern 3D graphics cards, the video memory may also hold 3D vector data, textures, backbuffers, overlays
Video overlay

Video overlay is any technique used to display a video window on a computer display while bypassing the chain of Central processing unit -> graphics card -> computer monitor....
 and GPU
Graphics processing unit

A graphics processing unit or GPU is a dedicated graphics rendering device for a personal computer, workstation, or game console. Modern GPUs are very efficient at manipulating and displaying computer graphics, and their highly parallel structure makes them more effective than general-purpose Central processing unit for a range of com...
 programs.

This memory sometimes takes the form of dedicated memory chips integrated in the framebuffer
Framebuffer

A framebuffer is a video output device that drives a video display from a memory buffer containing a complete video frame of data. The information in the buffer typically consists of color values for every pixel on the screen....
, and sometimes takes the form of a Shared Memory Architecture
Shared Memory Architecture

In computer architecture, Shared Memory Architecture refers to a design where the Graphics Card does not have its own dedicated memory, and instead shares the main system Random access memory with the Central processing unit and other components....
 (SMA).








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Video memory is a term generally used in computer
Computer

A computer is a machine that manipulates Data according to a list of Code .The first devices that resemble modern computers date to the mid-20th century , although the computer concept and various machines similar to computers existed earlier....
s 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
Display device

A display device is an output device for presentation of information for visual, tactile or Hearing_ reception, acquired, stored, or transmitted in various forms....
. In modern 3D graphics cards, the video memory may also hold 3D vector data, textures, backbuffers, overlays
Video overlay

Video overlay is any technique used to display a video window on a computer display while bypassing the chain of Central processing unit -> graphics card -> computer monitor....
 and GPU
Graphics processing unit

A graphics processing unit or GPU is a dedicated graphics rendering device for a personal computer, workstation, or game console. Modern GPUs are very efficient at manipulating and displaying computer graphics, and their highly parallel structure makes them more effective than general-purpose Central processing unit for a range of com...
 programs.

This memory sometimes takes the form of dedicated memory chips integrated in the framebuffer
Framebuffer

A framebuffer is a video output device that drives a video display from a memory buffer containing a complete video frame of data. The information in the buffer typically consists of color values for every pixel on the screen....
, and sometimes takes the form of a Shared Memory Architecture
Shared Memory Architecture

In computer architecture, Shared Memory Architecture refers to a design where the Graphics Card does not have its own dedicated memory, and instead shares the main system Random access memory with the Central processing unit and other components....
 (SMA).

See also

  • GDDR3
    GDDR3

    Graphics Double Data Rate 3 is a graphics card-specific memory technology, designed by ATI Technologies with the collaboration of JEDEC.It has much the same technological base as DDR2 SDRAM, but the power and heat dispersal requirements have been reduced somewhat, allowing for higher performance memory modules, and simplified cooling syste...
  • GDDR4
    GDDR4

    GDDR4 SDRAM is a type of graphics card Random access memory specified by the JEDEC Semiconductor Memory Standard. It is a rival medium to Rambus XDR DRAM....
  • GDDR5
    GDDR5

    GDDR5 is a type of graphics card Random access memory the standards of which were set out in the GDDR5 specification by JEDEC. GDDR5 is the successor to GDDR4 and unlike its predecessors has two parallel DQ links which provide doubled I/O throughput when compared to GDDR4....
  • Dedicated / Shared memory
  • VRAM
    Dynamic random access memory

    Dynamic random access memory is a type of random access memory that stores each bit of data in a separate capacitor within an integrated circuit....