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.
* Considerably improved startup time on ATI cards, faster on NVIDIA, too
* Improved rendering on high-DPI screens
* Fixed ROP count reading on AMD Radeon HD 6790, Turks & Whistler
* Fixed sensor count on Caicos, Whistler, Turks
* Fixed OpenCL detection on some NVIDIA drivers
* Memory size reading support for AMD Fusion GPUs
* Added die size and transistor count for GF108, GF114, Turks, Caicos
* Added detection for more Intel Sandy Bridge GPUs
* Added detection for variants of GT 220, GTS 450
* Added detection for faked cards based on GTS 250, 9600 GT, NV41M
* Added detection for GeForce GTX 560 non-Ti, GT 520, GF116 based GTS 450, GT 550M, GeForce 315, GeForce 405, Quadro 2000 & 6000
* Added detection for GeForce GTX 560M, GT 555M, GT 550M, GTX 540M, GT 525M, GT 520M, GTX 415M, GT 410M, Quadro 1000M, NVS 4200M
* Added detection for GT218 based ION 2 / 9300 GS / 8400 GS / 405 / NVS 300
* Added detection for HD 6750, HD 6770, HD 6850M, HD 6970M, HD 6670M, HD 6650M, HD 6330M, FirePro 2260