Yeah, clock speed isn't everything. But I wasn't aware that a Pentium M was *that* much better than a plain Pentium 4. I never owned a Pentium 4--had AMD at that time.
Thanks for the info--that explains why this D600 still runs everything so well.
It's because the inclusion of the name "Pentium" makes it sound like they're similar chips when they are totally different. Netburst was meant to be this brand new awesome architecture that could reach ridiculous clockspeeds and become the performance king that way while the Pentium M was a quiet necromancy of the old P6 architecture(
with heavy modifications, alleges the wikipedia article) that was born in the Pentium Pro and lasted until the Pentium III. Pentium M wasn't supposed to exist, but Intel recognized the need for a much better mobile performance chip because the Pentium 4 was LOLawful in laptops.
After I made the post you quoted, Haserath said it was more like a 3.2 GHz P4. After some thought and looking at some benchmarks at the Anandtech bench(that P4 660 vs some Celeron 400s), I agree with him. But its still a massive gap.
I've used CPUs with both architectures. I still have a Dell D810(freebie gift) with a Pentium M that could go all the way up to 1.86 Ghz. I upgraded another old "gift" desktop we had with a Celeron D 2.53 GHz originally to a to a 3.2 GHz P4 maybe two years ago. That Celeron was awful at stock and sort of tolerable at 2.7-2.8 GHz. The 3.2 Ghz was still laggy, but at around 3.3-3.4 GHz, web browsing and OS navigation reached "tolerable" levels.
I still preferred the laptop even at 1.46 GHz though, and 1.6 GHz was not that different from 1.86 Ghz. The ECS desktop board only supported single-channel DDR RAM though, while the Pentium M had DDR2 RAM in dual channel mode. Maybe that contributed to its slower feel.
The overclocking was done on an ECS board(PM800-M2) and a now-retired rubbish Okia case PSU. It's amazing that board survived this long; it still works.
The stock heatsink for the Celeron could not handle Prime95ing that 3.2 GHz Prescott either. If I had known Northwood was actually the better and that the extra L2 cache was offset by Prescott's longer pipeline...(was a newb one year ago to all of this)