Intel Pentium 4 660 (64-bit) and Pentium 4 Extreme Edition 3.73GHz @ TrustedReviews

“The top of the range chip will be the new Extreme Edition which operates at 3.73GHz and has a 1066MHz bus. The new Extreme Edition differs not only by supporting 64-bit operating systems, but also with its cache size, which has actually been reduced in total by 512KB. The reason for this is that the older 3.46GHz had 512KB of Level 2 cache and 2MB of Level 3 cache, while the new 3.73GHz processor only has 2MB of Level 2 cache. The micron process used on the die has also shrunk to 90 nanometre compared to 130 on the 3.46GHz part.”

There’s no benchmarks to be had, but there is a lot of indepth details to both these top end CPU’s. Check out the full look at TrustedReviews.