Windows Vista Capable and Premium Ready footnotes
Windows Aero requires:
DirectX 9 class graphics processor that:
Supports a WDDM Driver.
Supports Pixel Shader 2.0 in hardware.
Supports 32 bits per pixel.
Adequate graphics memory.
64 MB of graphics memory to support a single monitor less than 1,310,720 pixels
128 MB of graphics memory to support a single monitor at resolutions from 1,310,720 to 2,304,000 pixels
256 MB of graphics memory to support a single monitor at resolutions higher than 2,304,000 pixels
Meets graphics memory bandwidth requirements, as assessed by Windows Vista Upgrade Advisor running on Windows XP
A DVD-ROM may be external (not integral, not built into the system)..