I'm not to sure what the fuzz is really as it is to be expected and will be similar for GeForce cards. DirectX 11.2 will be launched in October together with Microsoft the Windows 8.1 update. It is somewhat confirmed by AMD that its "Southern Islands" and "Sea Islands" GPUs, branded under the Radeon HD 7000 and Radeon HD 8000 (OEM) series, will not 100% support the upcoming DirectX 11.2.

Here's a pretty poor Google translation from the source, Heise.de

The problem lies in a feedback routine that Microsoft in the final specification transposed differently than assumed by AMD. But that could be solved, such as Mah stressed by a change in the driver. The hardware itself is fully compatible.

Mah also confirmed that the two GPU versions are compatible with the requirements of Direct3D 11.2 in the living room next Playstation 4 and Xbox One. Compared with the current series desktop GPUs Radeon HD 7000 and HD 8000 (OEM), console versions would offer much more Asynchronous Compute Engines (ACEs) to perform simultaneous graphics and compute calculations more efficiently.

Regarding the 3D function level, it is obvious no wonder why Sony and Microsoft have opted for AMD and against Nvidia what the GPUs to their next- gen consoles are concerned. Nvidia can offer neither a CPU-GPU combo processor, nor a competitive on the full support of current 3D standards GPU. For the future console games developers especially Tiled Resources an important function, support the Nvidia GPUs only partially. Laylah Mah also gave a glimpse of the future of 3D computer graphics: Thus, it is conceivable to overcome the separation between vertex and pixel shader operations and to calculate 3D graphics alone Compute Shader - in a single compute based graphics pipeline

DirectX 11.2 not fully supported by Radeon HD 7000 series