ATI Radeon X800 XL overclocking
 

We experiment with coolers, clock speeds and power connectors on ATI's mid-high-end graphics card. Does an external power connector provide for better overclocking? What power drain does a souped-up X800XL have? And what results can you get with an ATI Silencer cooler? All this and more...

http://www.bit-tech.net/article/161/