VGA Software GPU-z

Main Features : 

• Support NVIDIA and ATI cards
• Displays adapter, GPU and display information
• Displays overclock, default clocks and 3D clocks (if available)
• Validation of results
• No installation necessary
• Support for Windows 2000 / XP / Vista / Windows 7 (both 32 and 64 bit versions are supported)

Click Here to download GPU-z 0.52 free