GPU-Z is a lightweight utility designed to give you all information about your video card and GPU.

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 required

Changelog:

Added support for GeForce GTX 570, GTX 460 SE
Added support for PCI-Express 3.0
Added PowerColor Giveaway
Added Colorfire PCI vendor ID
Added detection for AMD Radeon HD 6310, HD 6370
Fixed BIOS >64k reading on GF110
Added GT215 based GT 220
Fixed TMU count on GF104
Improved default clock reading on GeForce GTX 580
Better error handling for memory type detection cod