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.
* Fixed NVIDIA GeForce GTX 260/280 (GT200) support. Everything is working and tested now
* Removed bogus 190°C PCB temp sensor on various NVIDIA cards
* Added fan speed monitoring for NVIDIA
* Fixed crash when switching devices during sensor refresh
* Fixed ROP/Shader count on NVIDIA G72
* Fixed graphs spilling over their client area
* Fixed a number of other rare crashes
* NVIDIA device ID 0x00F3 now correctly recognized as NV43
* Improved crash reporting module