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When I check my system specs in msinfo32, I see that I've got 256 MB "Adapter RAM" under System Summary -> Components -> Display. However, dxdiag reports 2025 MB "Approximate Total Memory" on the "Display" tab.

What would cause such a discrepancy? Are they both right, but measuring different things?

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Integrated or discrete graphics? – Journeyman Geek Feb 25 '12 at 7:43
@JourneymanGeek It's a laptop, but I'm pretty sure the video RAM is dedicated. – Iszi Feb 25 '12 at 7:56
These are the sort of details that are critical! ;p – Journeyman Geek Feb 25 '12 at 7:57
up vote 1 down vote accepted

Dxdiag is reporting memory that is available to the system to be used to cache textures and data before it gets sent to the graphics card as well as physical memory on the graphics card.

MsInfo is only showing the memory physically available on the graphics card.

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