Tune was previously known as the NVIDIA System Utility.
NVIDIA®nTune™ is a monitoring and performance optimization application for PCs. NVIDIA nTune is exclusively designed for PC integrating a NVIDIA nForce.
With NVIDIA nTune, your computer will automatically adjust the settings performance at the most for an extreme gaming, or detecting the introduction of a DVD, will go into silent mode. This intelligent application is the safest way to change the bus speed, synchronization and memory, even, the developed voltages. The changes are very simple thanks to the intuitive Windows interface used and you will never have to touch the BIOS or to reboot your system.