I'm noticing an oddity with my Gigabyte ATI Radeon 4870. I'm using the Catalyst 8.8 beta drivers. I have ATI Overdrive enabled in order to change my fan speeds but I have not overclocked the card. The GPU Clock speed is being read incorrectly.
Refer to the attached image.
Edit: Sorry, I'm an idiot. I didn't mean to post this here and I cannot delete it.
Could a Moderator please move this appropriately so I don't have to make things worse and double-post. I'm really sorry.
Edit 2: The source of the problem appears to be the Catalyst 8.8 beta drivers. GPU-Z 0.2.5 showed 0 MHz for the GPU Clock and GPU-Z 0.2.7 showed 819245 MHz. I uninstalled the drivers and reverted to the official Catalyst 8.7 drivers and the GPU Clock readings are displayed as they should be.