On Pentium 4 overclocking
The Register has an interesting little tidbit
up on overclocking Intel's latest chip. While the chip used was an engineering sample with an unlocked multiplier, the fact that it ran easily at 1.6GHz totally cold hints at this chip's overclocking and clock speed potential.
It's pretty impressive to find an early version of a processor capable of running effortlessly at a higher than advertised speed and indicates that the 1.7GHz and 2GHz versions are very close indeed, even at the comparatively clunky 0.18 micron process.