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Graphics processors based on first-generation Graphics CoreNext micro-architecture, slotted inside the "Southern Islands" and "Sea Islands" families, and branded under Radeon HD 7000 and Radeon HD 8000 (OEM) series, don't fully support Microsoft DirectX 11.2 API. Exclusive with the upcoming Windows 8.1 operating system, the Direct3D component of DirectX 11.2 introduces a handful of revolutionary consumer 3D features, such as "D3D tiled resources," which is analogous to OpenGL mega-textures; HLSL shader linking, frame-buffer scaling, etc.

In an interview with German publication c't Magazin, AMD engineer Laylah Mah pointed out that a feedback routine Microsoft deployed in the final specification of DirectX 11.2 turned out different from the one AMD anticipated. Mah stressed that the incompatibility is not at the level of the hardware, but the driver. The GPUs inside next-generation consoles like Microsoft Xbox One and Sony PlayStation 4 aren't fundamentally different from current AMD GPU micro-architecture, and at least one of the two, Xbox One, will leverage the latest DirectX.

Our recent editorial on adoption of Windows 8.1 by PC enthusiasts concluded saying "...and Microsoft isn't stopping with its innovations that will get increasingly out of reach for Windows 7 users." It looks like the first of such innovations is DirectX 11.2. Microsoft revealed that the latest version of its multimedia API will require Windows 8.1 on the PC, and comes built into its next-generation Xbox One console. With this, Microsoft established that you will need Windows 8.1 or later, to access future versions of DirectX.

Microsoft has often used the tactic of limiting DirectX versions to certain versions of Windows, often citing driver-model changes, to force PC enthusiasts to either upgrade, or lag behind in PC technology, and in the past it worked. Windows XP capped out at DirectX 9.0c, forcing gamers to upgrade to Windows Vista, to experience cutting-edge games of the time, such as "Crysis," with new visual effects that DirectX 10 brought to the scene. DirectX 11.0 had the unique distinction of spanning across Windows Vista and Windows 7. DirectX 11.1 was exclusive to Windows 8 and above, as it required WDDM 1.2 (Windows display driver model). The Direct3D component of the API didn't bring anything substantial to the scene. With Windows 8.1, Microsoft is introducing DirectX 11.2, it requires WDDM 1.3, which the operating system introduces. Since Windows 8.1 will be offered as a free upgrade to current Windows 8 users, it's effectively the Windows 7 user-base, that's being asked to take a hike.