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Video random-access memory
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Video random-access memory (VRAM) is dedicated computer memory used to store the pixels and other graphics data as a framebuffer to be rendered on a computer monitor.cite-ref-1[1] It often uses a different technology than other computer memory, in order to be read quickly for display on a screen.

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Relation to GPUs

Many modern GPUs rely on VRAM. In contrast, a GPU that does not use VRAM, and relies instead on system RAM, is said to have a unified memory architecture, or shared graphics memory.

System RAM and VRAM have been segregated due to the bandwidth requirements of GPUs,cite-ref-2[2]cite-ref-3[3] and to achieve lower latency, since VRAM is physically closer to the GPU die.cite-ref-4[4]

Modern VRAM is typically found in a BGA packagecite-ref-5[5] soldered onto a graphics card.cite-ref-6[6] The VRAM is cooled along with the GPU by the GPU heatsink.cite-ref-7[7]

Technologies

Dual-ported video RAM, used in the 1990s and at the time often called "VRAM"
SGRAM
High Bandwidth Memory (HBM)cite-ref-8[8]

See also

Tiled rendering, a method to reduce VRAM bandwidth requirementscite-ref-9[9]

References

cite-note-11. citereffoleyvan-damfeinerhughes1997Foley, James D.; van Dam, Andries; Feiner, Steven K.; Hughes, John F. (1997). Computer Graphics: Principles and Practice. Addison-Wesley. p. 859. ISBN 0-201-84840-6.
cite-note-22. "What is VRAM: The Memory Power Behind Real-time Ray-Tracing".
cite-note-33. "Relationship Between RAM and VRAM Bandwidth and Their Latency". 17 May 2021.
cite-note-44. "RAM vs. VRAM: What's the Difference?". makeuseof.com. 16 July 2021.
cite-note-55. "Encapsulated in CPUs, GPUs, RAM and Flash: Types and Uses". 23 March 2021.
cite-note-66. "Graphics Card Components & Connectors Explained". 29 March 2017.
cite-note-77. "Different Types of Graphics Card Cooling Solutions for GPU, VRAM & VRM". 17 January 2017.
cite-note-88. "VRAM vs RAM | Differences & Applications". TechDim. 3 April 2024.
cite-note-99. "GPU Framebuffer Memory: Understanding Tiling".