Graphics Memory Reportingthrough WDDMJanuary 9, 2006AbstractThis white paper provides information about the reporting of graphics memorythrough the Windows Vista Display Driver Model (WDDM) on systems runningthe Windows Vista operating system.The current version of this paper is maintained on the Web at:http://www.microsoft.com/whdc/device/display/graphicsmemory.mspxReferences and resources discussed here are listed at the end of this paper.ContentsIntroduction ............................................................................................................................. 3Graphics Memory Concepts.................................................................................................... 3Dedicated versus Shared Graphics Memory ...................................................................... 3Discrete versus Integrated Graphics Adapters ................................................................... 3BIOS Allocation versus Driver Allocation............................................................................ 5Graphics Memory Reporting before WDDM............................................................................ 6Graphics Memory Reporting through WDDM.......................................................................... 6Calculation of Graphics Memory ........................................................................................ 7Example 1: 256-MB Dedicated On-board Graphics Memory on a Deskto ...
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