我所知道的有显卡驱动WDDM1.0(Vista)和1.1(Win7)的区別
最明显一点是1.1支持混交(A卡3D加速/N卡physX)
不过ms又看到这么一句:
Support for WDDM 1.1 drivers and 2D acceleration of Direct2D and DirectWrite will also be available with Windows Vista Platform Update; however GDI/GDI+ in Vista will continue to rely on software rendering.
还有:
Although extensive, the Platform Update does not bring Windows Vista to the level of features and performance offered by Windows 7. For example, even though DXGI 1.1 update introduces support for hardware 2D acceleration featured by WDDM 1.1 video drivers, only Direct2D and DirectWrite will employ it and GDI/GDI+ will continue to rely on software rendering. Also, even though Direct3D 11 runtime will be able to run on D3D9-class hardware and WDDM drivers using \"feature levels\" first introduced in Direct3D 10.1, Desktop Windows Manager has not been updated to use either Direct3D 10.1 or WARP software rasterizer.
所以具体什么情况还需进一步实验 直接跳过了vista ，升到win7了。
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