Video random-access memory: Difference between revisions

Revision as of 21:59, 3 April 2023

Revision as of 22:00, 3 April 2023

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{{shortShort description|Type of dedicated computer memory}}

[[File:GDDR5X 1080ti.jpg|thumb|[[GDDR SDRAM|GDDR5X SDRAM]] on an NVIDIA GeForce [[GTX 1080 Ti]] graphics card]]

'''Video random -access memory''' ('''VRAM''') is dedicated computer memory used to store the [[pixel]]s and other graphics data as a [[framebuffer]] to be rendered on a computer monitor.<ref>{{cite book|title=Computer Graphics: Principles and Practice|last1=Foley|first1=James D. |last2=van Dam|first2=Andries|last3=Feiner|first3=Steven K.|last4=Hughes|first4=John F.|publisher=[[Addison-Wesley]]|year=1997|isbn=0-201-84840-6|page=859|url=https://books.google.com/books?id=-4ngT05gmAQC&dq=vram&pg=PA892}}</ref> This is often different technology than other computer memory, to facilitate being read rapidly to draw the image. In some systems this memory cannot be read/written using the same methods as normal memory; it is not [[memory mapped]].

== Description ==

{{Multiple image

|image1=Desktop computer bus bandwidths.svg

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Modern VRAM is found in a [[Ball grid array|BGA package]]<ref>{{Cite web|title=Encapsulated in CPUs, GPUs, RAM and Flash: Types and Uses|url=https://itigic.com/encapsulated-in-cpus-gpus-ram-and-flash-types-and-uses/}}</ref> soldered onto the graphics card.<ref>{{Cite web|url=https://graphicscardhub.com/graphics-card-component-connectors/|title=Graphics Card Components & Connectors Explained}}</ref> Like the GPU itself, the VRAM is cooled by the GPU heatsink.<ref>{{Cite web|url=https://graphicscardhub.com/graphics-card-cooling-solutions/|title=Different Types of Graphics Card Cooling Solutions for GPU, VRAM & VRM}}</ref>

== Technologies ==

* [[Video RAM (dual-ported DRAM)]], a specific technology used in the 1980s

* [[GDDR SDRAM]]

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==See also==

* [[Graphics processing unit]]

* [[Tiled rendering]], a method to reduce VRAM bandwidth requirements<ref>{{Cite web|url=https://developer.samsung.com/galaxy-gamedev/resources/articles/gpu-framebuffer.html|title=GPU Framebuffer Memory: Understanding Tiling}}</ref>