Originally Posted by xenos
Yes although just going to Vista's WDDM 1.0 isn't enough, you need to go over to Windows 7 to get the full effect with WDDM 1.1 as this is a brand new feature :-)
WDDM1 and 1.1 are related to aero and the windows desktop only. What this is, is to save system memory from rendering aero alone - the pictures they have show ram savings from having heaps of windows open.
All it is, is that MS has ported aero to DX10 to save ram. (and yes, you need to use 7 to get it)