AMD announced it has achieved the Guin­ness World Record for the “High­est Fre­quency of a Com­puter Proces­sor,” by over­clock­ing the upcom­ing 8-​core AMD FX desk­top proces­sor. The record was set Aug. 31, 2011, in Austin, Texas, by “Team AMD FX,” a group of elite over­clock­ing spe­cial­ists reached 8.429GHz on an 8-​core desk­top CPU sur­passed the pre­vi­ous record of 8.308GHz.

8.429 GHz was achieved using a base clock of 271.92 MHz with 31.0X mul­ti­plier. Cool­ing was taken care by a cus­tom liquid-​nitrogen setup. The team used liq­uid nitro­gen and switched to liq­uid helium halfway, which has a lower boil­ing point.

You can see the detailed CPUZ screen shot.

And you can watch the video too