Over at the Extreme Systems forums a user called TiN EOF posted the results of his all new world record processor overclocking. Listen to this, the guys achieved a blistering 8199 MHZ (!) on a Celeron D 347 processor.
Here's the kit he used:
The Cedar Mill architecture based processor is normally clocked at 3.06GHz. To get it towards 8GHz he needed more than just cooling, as he removed the heat spreader from the processor.
AT 2.096V, liquid Nitrogen cooling and the heat spreader removed he reached 8199.5MHz.
Check out the thumbnails.