I just did a reinstall on my system and have been going through the normal tweaks and tunes setting up to redo the overclocking on the CPU when I came across NVTweak. For those not familiar it basically opens up more options/tabs in the Nvidia control panel. One of the tabs is "Performance" and under the performance tab is "Device settings". Long story short under device settings within the GPU settings it will overclock your GPU, memory, and shader on its own. I'm running stress tests on it atm but I was curious if anyone else has used it. I personally never really mess with overclocking my video cards, mainly I focus on CPU speeds and memory timing. Usually Im pretty methodical when it comes to this kind of thing so if anyone has some info on NVTweak let me know.
H4ck 3D - Home of NVTweak and NVIDIA Tray Tools
Edit: The Automatic Overclocking part of the mod is also known as CoolBits.