AMD today updated the Crimson ReLive 16.12.2 drivers. The new drivers now have WHQL certification with a January 3 build date. Some users report fixed VRAM clock issues. Apparently these also fix some ping time issues with certain WiFi adapters and also fix a mouse cursor corruption issue.
Download here.
Updated: Download AMD Crimson ReLive 16.12.2 January 9 2017 WHQL release