GPU-Z v0.5.0 adds full support for Radeon HD 6950 and HD 6970 video cards and improved voltage monitoring support for GTX 570 users.
Grab it if you want to use the latest and greatest - http://www.techpowerup.com/downloads/1921/mirrors.php
GPU-Z is a lightweight utility designed to give you all information about your video card and GPU.
Revision History
Added full support for Radeon HD 6950 and HD 6970
Fixed TMU/Texture Fillrate rounding error on NVIDIA cards
Improved voltage monitoring support for GTX 570
Workaround for ATI OpenCL driver crashing GPU-Z on systems with NVIDIA cards
Fixed crash when driver version could not be read
Fixed crash when splash screen interrupted by message box