techPowerUp - (Freeware)
GPU-Z is a software that provides the user important information about the graphics card.
GPU-Z is a small but powerful application that offers essential information for all of the graphics card version GPU, BIOS, frequency, etc.
The simple and easy to use interface displays a window with information such as the ID, shaders, the type of memory bandwidth, the version of the driver or the frequency of the GPU.
GPU-Z application works with nVidia or ATI card types.
* 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