Recently during the CES tradeshow a group of overclockers pushed the limits of modern technology. They overclocked an AMD Phenom II X4 chip to 6.5 GHZ. In order to keep the chip cool they used liquid nitrogen and liquid helium. The temperature of the chip got to an astounding -232 degrees celsius. This is a world record for a quad core CPU! Watch the video below to see how it was done: