AMD has released Catalyst 13.6 Beta Drivers for Windows

Feature Highlights of AMD Catalyst 13.6 Beta for Windows:

Product support for the new AMD A10, A8, A6, and A4 Series APUs on desktop and mobile platforms.
AMD Enduro technology enhancement:
Reduces power consumption when running Windows 8 Metro applications – detects when Metro applications have idled and moves them to the integrated graphics component.
AMD Catalyst Control Center now shows the hardware and software Information pages for AMD discrete GPUs when paired with Intel integrated graphics.
Includes AMD GPU & AMD APU OpenCL 1.2 acceleration in Adobe Premiere PRO CC.
Support for AMD Wireless Display for Windows 8 and future Windows releases:
Supported on AMD Elite A-Series APUs with select Broadcomm and Atheros Wireless adapters.
AMD Wireless Display Technology provides the ability to wirelessly display local screen content onto a remote screen in real time. Compliant receiver/TV required.
Resolved issues:
Resolves HDMI Audio drop-out issues on the AMD Radeon HD Series products.
Resolves issues with the AMD Catalyst Control Center showing Audio Display messages at incorrect times.

System Requirements:

Windows 8 (32 & 64-bit versions)
Windows 7 (32 & 64-bit versions with SP1 or higher)
Windows Vista (32 & 64-bit versions with SP2 or higher)

AMD Product Compatibility:

AMD Radeon HD 7900 Series
AMD Radeon HD 7800 Series
AMD Radeon HD 7700 Series
AMD Radeon HD 6000 Series
AMD Radeon HD 5000 Series
AMD Mobility Radeon HD 8000M Series
AMD Mobility Radeon HD 7000M Series
AMD Mobility Radeon HD 6000M Series
AMD Mobility Radeon HD 5000M Series

  AMD Catalyst 13.6 Windows Beta Drivers