Here you can download the official AMD Catalyst 13.6 Beta driver.

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.

Build Info:

• 13.101-130523a-157668E-ATI
• DriverVer=05/23/2013, 13.101.0.0000
• Catalyst 13.6
• CCC: 2013.0523.1654.28486
• 3D: 9.14.10.0972
• OGL: 6.14.10.12337
• OCL: 10.0.1214.3