我只對這個比較有興趣(from anandtech)

1.the Pentium 4 is a much more competitive processor. We were able to
reach speeds of 2.64GHz, air cooled, with our 2.2GHz processor using a
120MHz FSB and bumping up the voltage to 1.625V



2.The Pentium 4 2.2 will cost a bit more although it runs significantly
cooler and has much more overclocking headroom.