Question about mobile processors?!

If you want to run things like Photoshop on a notebook, get a Pentium M, the celerons for both Desktops and Notebooks are only good for basic computer functions.

Don't get the P-M get the P4-M, because u mentioned Adobe Priemier which is video encoding. The P4-M is the most optimised processor for this task with HT and SSE3...

The heat issue is with the P4 desktop CPU's in a laptop (which only makes sense as it shouldn't be in there anyways), but i haven't read of a heat issue in the P4-M notebooks...

Frazell, you must not be reading much then.

The P4-M is a junk processor that produces tons of heat.  Until the Pentium M chip, Intel took desktop chips and crammed them into notebooks.  P-M chip was designed for a notebook, so it is equally as fast as a desktop P-4 and uses a lot less power.  As a matter of fact, Intel is going to discontinue all P4 chips and move it to the M-line for desktops as well.

The Celeron is a fine processor for anything except extreme gaming.  The difference used to only be the L2 cache memory (512 vs 2MB).  This makes the chip slower under heavy processing, but it is fine for 99% of the applications out there. 

 

lol to that extent the P-M is just a slightly modified desktop processor as well since it's built off the Pentium III.

Actually, the P-M was essentially built from scratch by a completely new team of designers. They took concepts from the P3.

The idea behind the P-M was to build a superior mobile processor. The idea of mobile computing is battery life is of the utmost importance. Everything else is secondary.

As I said before, some elements (like shorter pipelines) were taken from the P3, but other than that, the P-M was built from scratch, not made from a slightly modified P3.

Yes. Intel is moving away from the Pentium 4.
No. The Pentium M is not coming to desktops. What will happen is that some of the Pentium M architecture and its features will be applied to the next desktop processor. The Pentium M is a notebook processor and some of the features, like power saving and not a boatload of heat. Desktops are not so much about power saving and they can handle more heat because the desktops have more capable heat sinks on thier processors, larger cases, better airflow throughout the unit...

The Celeron is a ok for email and word processing, aka basic comptuer functions. If you want to do anything serious, like multimedia processing, gaming, photo editing, etc., go with the Pentium 4 because the P4 is better equiped to handle those tasks.

The P4-M is no longer in production. The P4-M is a slightly modified DESKTOP processor so that it will work in notebooks.

Course clock speed isn't king...

The heat issues plague the 5100/5150 (which use DESKTOP cpu's) i have a 5160 and my fan is rarely on! Also speed step is not something that exsist only on P4-M they also exist on P-M machines and aim to serve the same purpose, reduce battery life and heat. As a said before the P-M was designed for a different type of mobile user and it has reached a clock speed that allows it to be effecient enough to use in place of a P4-M, but it is not better in all cases.

I agree with you James.  The P-M architecture will be the basis of the P4 replacement.

The P4-M chip is junk just like I said.  As clock speeds kept getting faster, heat was greatly increasing.  Intel knew this would be a problem so they tried to take the P4 and make it a mobile processor by using the speedstep technology, allowing the chip to run at a slower speed when doing most undemanding tasks.   It was a poorly designed and executed compromise setup from the beginning.   Hence, the P-M was born.  This might be an indirect decendent of the PIII, but it's sole purpose was notebooks (as James said).

Many notebook computers using the P4 or P4-M have had heat problems.  The 5150/60 comes to mind as well.  I was at a seminar last month and sat next to a guy with an HP laptop and a P4 chip, the fan was spinning so fast it sounded like a jet engine and annyoed the heck out of me.

The only decent chip for a notebook computer is the P-M line.  People have been trainined to think clock speed is king, but this is not the case anymore. 

 

 

Yes. The P-M can't replace the P4-M in flat out number crunching, but in everything else, it is equivalent. For example, the Inspiron XPS Gen 2 is one of the fastest mobile computers on the market.

If I ever get a mobile computer, I wouldn't want it to be a brick like all of the P4-M machines.

Here are the specs of the P4-M: http://www.intel.com/products/processor/pentium4-m/index.htm

And the P-M:
http://www.intel.com/products/processor/pentiumm/index.htm

Now-a-days, it is not just the processor, the Pentium M is part of a better chipset. PCI-Express with some of the best video cards on the market (Nvidia 6800 Go Ultra), longer battery life, lighter computers....

Every P4-M isn't a brick...

The XPS Gen 2 is heavier than my machine according to Dell...

The P-M is able to replace the P4-M as it has gotten fast enough that it can hold comparibly to the P4-M. The P4-M can continue to get faster and do what it does better, but in a mobile enviroment that most likely will go unnoticed, least at the current state. Intel will be bringing the P4-M (or maybe they will call it the P5-M who knows) back into service sometime within the next year or two. The P-M is more effiecient, not nessasarily more powerful... It's just that today the extra power is starting to go unused...

Frazell:

Where did you hear that from?  I've never heard about the P4-M coming back into service.  I heard they were dropping the P4 line totally and concentrating on a the P-M for both desktops and laptops in a single core.  I'm not sure about the dual core though.