A report from Heise.de, a German technology website, indicates that the current AMD Radeon HD 7000 series of graphics cards won't be fully compatible with the upcoming DirectX 11.2 standard from Microsoft. DirectX 11.2 will be released with, and exclusively on, Windows 8.1.
The problem would exist on graphics cards that are built on the GCN architecture, so of course it would also include the OEM only AMD Radeon HD 8000 series graphics cards.
It appears, according to an engineer from AMD, Laylah Mah, that the problem isn't actually specific to the hardware. Laylah said that adjustments to the drivers could add support for the DirectX 11.2. Sadly, she didn't indicate whether such a driver was scheduled. (Laylah was interviewed by the German magazine C'T.)
The DirectX 11.2 package will bring a number of new features to users, including D3D titled resources.