Windows 7 and Vista Aero Desktop graphics memory requirements

Windows Vista Aero Desktop graphics memory requirements

-For single monitor and mobile systems

64MB of graphics memory to support up to and between 1280x1024*

128MB of graphics memory to support up to and between 1920x1200

256MB of graphics memory to support over 1920x1200 (512MB or above recommended for 2560x1600 displays)

-For single card dual monitors

128MB of graphics memory to support up and between 1280x1024 x 2

256MB of graphics memory or more to support larger dual monitor configurations.

* Or equivalent in terms of total pixels. http://windows.microsoft.com/en-us/windows7/What-is-the-Aero-desktop-experience