Hello, I was hoping for some clarification on the intended GPU series support for Windows 8.1’s WDDM 1.3 driver model.
My understanding is that at least part (if not all) of the 700 series GPUs have WDDM 1.3 support in the Windows 8.1 Preview, using the current forceware 326.01 drivers available for the OS.
However, I’m not clear on NVIDIA’s future plans for supporting WDDM 1.3 on other recent GPU series, such as the 500s and 600s.
I don’t have access to a 600 series GPU, but I have managed to check for support for the 500 series (using a GTX 560 Ti) in Windows 8.1 Preview with the 326.01 drivers, and the 560Ti shows as only a WDDM 1.2 device there.
I also took a closer look at optional feature_level_11_0 support on the 560ti with the current Visual Studio 2013 Preview in Windows 8.1 Preview, using example code for Hardware Overlay Support as well as for Tiled Resources. In both cases support was unavailable using 326.01 with the 560ti GPU. Hardware Overlays returned false from dxgiOutput2->SupportsOverlays(), whilst Tiled Resources appears unavailable with a value of D3D11_TILED_RESOURCES_NOT_SUPPORTED when populating a D3D11_FEATURE_DATA_D3D11_OPTIONS1 object using device->CheckFeatureSupport(). I didn’t check the optional feature support for Mappable Default Buffers.
Has anyone else who frequents the forum had chance to test either general WDDM 1.3 support or those more specific level_11_0 optional features with a 600 series GPU in Windows 8.1 Preview?
If at all possible, could anyone at NVIDIA clarify whether future Windows 8.1 drivers will bring WDDM 1.3 / optional feature support for the 500 Series (and/or other GPU series)?
Thank you for reading.