XPSRas GPU Usage Decision Tree
A computer that is running Windows 8 must also have a WDDM 1.2 display driver installed for the GPU acceleration hardware to be used. The Following diagram shows the decision tree that Windows uses to determine whether or not to engage GPU hardware acceleration.
Note It is important that the WDDM 1.2 display driver is not installed as a Basic Display Driver. If Windows detects a Basic Display driver, it will not use GPU hardware acceleration, even if all other conditions have been met.
For more information about XPS raterization, see Using the XPS Rasterization Service.