Super cooling technology can make the AMD K6-III run at 500MHz. That's the claim being made by Kryotech, a U.S. company which used its proprietary cooling techniques to wind the clock of a 400MHz AMD K6-III chip up to the half-gigabyte level.

The company says its vapor phase refrigeration process can also push Intel's Pentium III clock speeds to about one-third higher. More information on the technology is available online at http://www.kryotech.com/ .