Quote from Nvidia:

NVIDIA® nTune is the ultimate utility for accessing, monitoring, and adjusting your system components, including temperature and voltages with clear, user-friendly control panels. Overclock your system for highest performance or underclock it for near silent operation. All changes are performed within the Microsoft® Windows® interface – enabling full functionality without the need to make changes in the BIOS and reboot your system.

The Nvidia nTune page doesn’t show this new version yet, but you can get it from several locations.

Note: The downloaded file name says it is for XP but it works with Windows Vista.

Download from Nvidia Download from MajorGeeks

• Nvidia ForceWare Drivers 169.21 WHQL Candidate
• Nvidia ForceWare Drivers 169.02
• Using AHCI mode in Windows Vista
• Nvidia ForceWare Drivers 169.25 Beta
• Nvidia ForceWare Drivers 169.04 Beta