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 Infotips, they can be turned off in the system menu
* Added preliminary support for ATI Radeon HD 5900 (Hemlock), HD 5600 (Cedar), HD 5300 (Redwood)
* Added full support for HD 5850, HD 5770, HD 5750
* GPU-Z no longer crashes on ATI ULPS enabled CrossFire configurations
* Fillrate Pixel, Fillrate Texel, Memory Bandwidth will now correctly recalculate when clocks change
* Bus Interface, ATI shader count is now periodically refreshed
* Added support for HD 5850 voltages
* Second voltage on HD 5870 correctly named VDDCI
* ATI clock reading code fixed
* Fixed default clock reading on HD 5850
* Added Mutex to avoid collisions on long I2C operations
* Added basic detection for a lot of NVIDIA card fakes
* Added detection for ATI FireGL V7600, M92, RS880
* Added detection for NVIDIA GT 130, 9600 GE, Tesla C1060, G 220, GT 220, NVS 3100, GTS 160 M, NVS 160M, NVS 150M, G105M, GT 240M, G105M, G210M, G310M, ION LE
* Fixed die size and transistor count on G72 M