If you are interested in knowing more about your Graphics Card, you can use GPU Caps Viewer. GPU Caps Viewer is a freeware OpenGL graphics card utility for Windows XP and Vista ( for 32/64-bit). You can quickly view the information about your graphics configuration like GPU type, amount of video memory, drivers version and many more. It will also display the OpenGL capabilities like OpenGL version, texture size, number of texture units, etc. and OpenGL extensions supported by your graphics card.
Apart from the Graphics Card information it will also display your system configuration including your CPU name, Core Speed, Physical Memory, OS details, DirectX version etc. It even displays the GPU temperature on the title bar. It includes GPU Burner or Stability Test which will overheat the GPU in order to test the graphics card stability. You can even start several stress test demos in the same time in order to make your graphics card working to the maximum.
There are OpenGL demos like HDR + DoF + Radial Blur, HW Geometry Instancing, Soft Shadows, Point Sprite Particles, Vertex Displacement Mapping and Cel-Shading. You can also export your report to a text or XML file.