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 optional GPU-Z installer which launches when GPU-Z is started for the first time, or can be started manually via the GPU-Z system menu
•Added support for AMD Radeon HD 7870, HD 7850, HD 7670M, FireStream 9370, FirePro V3900
•Added support for NVIDIA GeForce GTX 680, GT 640M, GTX 560 SE, GT 550M, GeForce 510, NVS 2100M
•Fixed clocks not showing correctly on some systems with Catalyst 12.2
•Fixed board id reading on pre-Fermi cards
•Fixed OpenCL detection for ATI Fusion (Sumo & Ontario)
•Fixed GPU-Z window getting cut off at certain DPI settings