Question about pentium-m processors

[cyberock]

I'm looking to buy a new notebook. When I bought my last notebook, there was no such thing as a pentium-m processors, just celeron or the regular ones. What's the difference between a pentium 4-m processor and a regular pentium 4 processor? For example, I'm looking at a pentium 4-m 2.2 ghz, how is that compared to a pentium 4 2.2ghz processor? Thanks!

 

[high]

I didn't even know they had 2.2 M's out yet. But I'm assuming it will be your equivalent to a 2.8-3.0 P4 without Hyper-Threading obviously. But yeah they're almost like AMD's in that they do more work per clock cycle so they appear slower on paper. Does a 3200+ at 2.2 equal a P4 2.2?? I think not =)

 

[Mingon]

A pentium 4 m 2.2 is equivalent to a 2.2a northwood running 400fsb. It has 1.3v vcore and can use speedstep to reduce this to 1.1v (ish) at speeds as slow as 600mhz.

high - he said pentium 4 m not pentium M the 4 makes all the difference

 

[Spicedaddy]

Pentium-M (Centrino) and Pentium 4-M are two different processors.

The Pentium 4-M will have the same performance as a desktop Pentium 4 "A" (400FSB). The Pentium-M has slower clock speeds, but higher performance/clock ratio, so it's generally equal to a Pentium 4-M clocked 600 to 800MHz higher. It also has better power management and runs cooler.


Basically, you want a notebook with a Pentium-M...

 

[VIAN]

The Pentium-M is up to 1.6GHz, but it can outpace a 2GHz P4 at least. They are lower voltage CPUs. Personally, I don't see why Intel doesn't just replace the P4 line with the P-Ms being that they are that much better and consume lower power. They are supposed to come out with something around 2.0GHz around the time Prescott is released, but they are having some trouble with heat - as Intel always does.