The guys over at Madshrimps have been up to their overclocking tricks again. Using subzero cooling, they've got better results out of a Core Duo at 3.4GHz than they got from a P4 at 7.2GHz :o

"Using a modified subzero cooling he was able to push the CPU to 3.4Ghz and run a CPU intensive SuperPi 1Mb calculation in 17.75 seconds; which is slightly faster than the current world record hold by Tom Holck with a P4 670 at 7.2Ghz!"