NVIDIA GeForce 6600 GT Extreme Overclocking
 

While the GeForce 6600 GT already delivers pretty high frame-rate in all popular games today, there is a chance to make it even faster by overclocking it a bit. However, those who want to have ultra high performance on a mainstream graphics card may try something more radical: extreme overclocking via voltmodding. Besides overclocking, we also measured power consumption and temperatures of the novelty.

http://www.xbitlabs.com/articles/vid...6600gt-oc.html