Tong Family

Tom’s Hardware Guide Processors: Welcome The Latecomer: Pentium 4 Prescott 3.4 GHz – New Processor Nomenclature To Come. To add more confusion, the clock rates of various Intel chips don’t seem to correlate to performance, so they are going to introduce model numbers.
Right now, a mobile Pentium 4 running at a lower clock rate can actually be faster in benchmarks than a desktop Pentium. This is because they are different architectures internally. It is why an AMD ship running at 2.0GHz can be as fast as mobile Pentium running at 2.2GHz or a desktop Pentium running at 3.4GHz. Talk about confusing.
So Intel is going to these models:
For Mobile:
Pentium M 755 (2.0 GHz)
Pentium M 745 (1.8 GHz)
Pentium M 735 (1.7 GHz)
Pentium M 725 (1.6 GHz)
Pentium M 715 (1.5 GHz)
Pentium 4 Mobile
Celeron M 340 (1.5 GHz)
Celeron M 330 (1.4 GHz)
Celeron M 320 (1.3 GHz)
For Desktop:
Pentium 4 Extreme Edition
Pentium 4 560 (3.6 GHz)
Pentium 4 550 (3.4 GHz)
Pentium 4 540 (3.2 GHz)
Pentium 4 530 (3.0 GHz)
Pentium 4 520 (2.8 GHz)
Celeron D 340 (2.93 GHz)
Celeron D 330 (2.8 GHz)
Celeron D 320 (2.66 GHz)
Celeron D 310 (2.53 GHz)
Good luck figuring this out! Oh BTW, the main conclusion on Tom’s Hardware is that the new Pentium 4 3.4E GHz wasn’t a great deal. Still much hotter and about the same performance. There is apparently a new stepping (silent upgrade called D0) that you need to make sure to get.