Main Features * Support NVIDIA and ATI cards * Displays adapter, GPU and display information * Displays overclock, default clocks and 3D clocks (if available) * Validation of results * No installation required * Support for Windows 2000 / XP / Vista (both 32 and 64 bit versions are supported)It is highly recommended to always use the most recent driver version available TechPowerUp, OSSupport:Windows 2K/XP/Vista Size:335 KB GPU-Z is a lightweight utility designed to give you all information about your video card and GPU GPU-Z, This will help if you installed a wrong driver TechPowerUp, Problems can arise when your hardware device is too old or not supported any longer GPU-Z, Try to set a system restore point before installing a device driver TechPowerUp, Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games GPU-Z,