Video random-access memory: Difference between revisions

Revision as of 01:04, 16 May 2022

Revision as of 01:09, 16 May 2022

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[[File:Nvidia@8nm@Ampere@GA102@GeForce RTX 3090@S TW 2032A1 SNNB9W.000 GA102-300-A1 DSC06025-DSC06107 (50740715646).jpg|thumb|A [[GPU]] die surrounded by VRAM chips]]

While a computer has system [[RAM]], most contemporary graphics cards have access to a dedicated set of memory known as VRAM. In contrast, a GPU which shares system memory has a [[Unified Memory Architecture]], or [[shared graphics memory]].

System RAM and VRAM has been segregated due to the bandwidth requirements of GPUs,<ref>{{Cite web|title=What is VRAM: The Memory Power Behind Real-time Ray-Tracing|url=https://digitaladvisor.com/graphics-cards/what-is-vram/}}</ref><ref>{{Cite web|url=https://itigic.com/relationship-between-ram-and-vram-bandwidth-and-their-latency/|title=Relationship Between RAM and VRAM Bandwidth and Their Latency}}</ref> and to achieve lower latency since VRAM is physically closer to the GPU die.<ref>{{Cite web|url=https://www.makeuseof.com/ram-vs-vram-differences/|title=RAM vs. VRAM: What's the Difference?|website=makeuseof.com}}</ref>