Galaxy has developed an overclocking tool for the NVIDIA GeForce GTX 470 and GTX 480 graphics accelerators. We were given some shots of the beta software. Link inside for software download.

We’ve been informed that there is a beta version of the Xtreme Tuner tool from Galaxy for tweaking the GTX 470 and GTX 480 GeForce graphics accelerators. From the makers themselves:
Notice the following limitations:
  1. Support on Fermi is still in early stage. There may be bugs or errors.
  2. Core to Shader clock ratio is fixed at 1:2.
  3. There may be problems with manual fan speed mode with current NVIDIA Fermi drivers.
  4. Core voltage control for Fermi is not implemented yet
First, a look at Galaxy’s GTX 470.
Now the more important part:
Of course those with Fermi samples can try to download the tool over here.