"Although there are endless varieties of NVIDIA overclocking
utilities for use in Microsoft Windows, when using Linux, it's a bit of
a different story. In this article, we'll share our NVIDIA Linux
overclocking successes and failures as we load LinuxHardware's NVClock
on a Prolink 5900XT, Gigabyte 6600GT, Leadtek 6600GT, and even a Riva TNT2."