It takes a little bit of luck, the right components, and a whole lot of liquid nitrogen to set new CPU overclocking records, and all three played a factor in pushing an AMD Phenom II X4 975 processor to 7.134GHz.
There have been faster overclocks before, but this is the highest anyone has ever taken an AMD chip. And while it required LN2 cooling, keep in mind that the stock frequency is 3.6GHz. For those of you who still aren't impressed, consider that there's never been a higher overclock on anything other than old Celeron and Pentium 4 processors.
The overclock was performed on an Asus Crosshair IV Formula motherboard. With LN2 in place, the Brazilian team was able to crank up the voltage to 1.788V and the multiplier from 18 to 31.5.