Is PentiumM (Centrino) the same as Pentium 4-M?

[pookguy88]

Just wondering would the Pentium M be the same as the Pentium 4-M?

 

[bearxor]

No.

The PentiumM is derived from the Pentium 3 chip with some enhancements.

The Pentium 4m is basically a desktop P4 chip running at lower voltages and lower bus speeds.

They use different chipsets and different sockets for the actual processor itself, though it's not much different, 478-pin on the P4m and a 479-pin on the Pm.

 

[makken]

.. I don't think anyone even makes a notebook with a Pentium 4-M in it anymore?? or you'll have to really look hard to find one. Nowadays they're pretty much either all Pentium M or full out Pentium 4's

 

[BrunoPuntzJones]

Originally posted by: bearxor
No.

The PentiumM is derived from the Pentium 3 chip with some enhancements.

The Pentium 4m is basically a desktop P4 chip running at lower voltages and lower bus speeds.

They use different chipsets and different sockets for the actual processor itself, though it's not much different, 478-pin on the P4m and a 479-pin on the Pm.

Intel's website shows P-Ms being 478 and 479 pin no?

link

 

[bearxor]

I went and looked on Intel's site after you said something, and I checked out the Processor spec sheet:

http://processorfinder.intel.com/scripts/default.asp?CHRID=942

It lists Pentium Processors being made right now in both 478 and 479 pin packages.

It also lists a couple really slow P4m's with 479-pin packages. Whats up with the 603-pin P4m 1.6? When did they ever make one for that socket? As a low-cost alternative to a Xeon laptop or what?

So, I'm equally confused now.

 

[Mingon]

The p-m has 478 pins but needs a mobo suppoting 479 as one is arranged differently to p-4 search the forum for more info

 

[0ptimist]

Okay, I'm lost here as well, any links please? I have a Celeron-M Dothan (same core as the Pentium-M Dothan, the Centrino ones, btw Centrino = 1. Pentium-M, 2. i855 chipset, 3. wireless capability, this I'm sure about), and it says "mPGA-479M". And I'm pretty sure my platform won't take P4-M.
Celeron-M and Pentium-M can run on the same mPGA-479M, right?
Now what are these two based on, the Pentium 4 or the original P3's? A little while ago I thought the Pentium-M was actually a modified Pentium 3 (convincing argument: Pentium-M 1.6 is faster/comparable to P4-M 2.2GHz, just like the Pentium3 1.2 was faster than P4 1.6), but the above couple of posts mean to contradict that...? or not?
There's a Celeron-M in 479, and one in 478 as well, both have the exact same specs apart from that.
479 Pin:
http://processorfinder.intel.com/script...7&PkgType=ALL&SysBusSpd=ALL&CorSpd=ALL
478 Pin:
http://processorfinder.intel.com/script...7&PkgType=ALL&SysBusSpd=ALL&CorSpd=ALL

 

[Conroy9]

Originally posted by: 0ptimist
Celeron-M and Pentium-M can run on the same mPGA-479M, right?
Now what are these two based on, the Pentium 4 or the original P3's? A little while ago I thought the Pentium-M was actually a modified Pentium 3 (convincing argument: Pentium-M 1.6 is faster/comparable to P4-M 2.2GHz, just like the Pentium3 1.2 was faster than P4 1.6), but the above couple of posts mean to contradict that...? or not?

Read this article (anandtech)

Basically, it's closer to a p3, "but the main point to convey is that the Pentium-M is not a Pentium III and not a Pentium 4, it's something very new and very different."

 

[fbrdphreak]

Check out the Dothan history in our "Clash of the Titans: Dothan vs Turion" article:
http://www.laptoplogic.com/resources/articles/42/2/1/

To clarify about the pin configurations:
Yes, the Pentium M & Celeron M platforms have a socket 478 & 479 pin configurations. BUT THEY ARE ELECTRICALLY INCOMPATIBLE WITH ANY OTHER CPU. So even tho a P4 has 478 pins, it will NOT work in an 855/915 motherboard.

 

[IntelUser2000]

Let me explain. There are THREE(!!!) types of Pentium 4 used in mobile(well one is not really available to buy nowadays).

First intro to last

Pentium 4-M
Pentium 4/Pentium 4 Mobile

Pentium 4-M is a Pentium 4 chip that has its power consumption DRASTICALLY lowered from the desktop variants, how like mobile P3's were low power consumption P3 desktop chips. Pentium 4-M at highest speed grade, 2.6GHz has TDP of 35W, and supports 400MHz FSB.

Pentium 4 desktop chip is also used, they just take desktop boards and desktop chip and squeeze that into laptop.

Pentium 4 Mobile(not to really be confused with Pentium 4-M), is a desktop chip with SPEEDSTEP. TDP is itty bitty lower than the desktop chip(~10%), but less meant for mobiles than Pentium 4-M's did. They also call is Pentium 4 desknote chips. TDP of around 95W for Prescott core based one. Intel doesn't produce faster chips of Pentium 4 Mobile since like early last year.

 

[IntelUser2000]

I believe S479 is a one that is meant to be INTEGRATED onto the laptop boards and S478 is the one you can take out.

 

[fbrdphreak]

Originally posted by: IntelUser2000
I believe S479 is a one that is meant to be INTEGRATED onto the laptop boards and S478 is the one you can take out.

😕😕😕😕

 

[piasabird]

The big difference is that a Pent M is a very cool running chip while managing to keep up with the lower end to mid range Pentium 4 using very little power and requiring very little cooling. I think you will see Intel working on a lot of low power consumption cooler processors. They may cost more, but they are use less power. They may be worth it in the long run to save on electric costs. I predict they are coming to business desktops.

 

[Mingon]

It should be the BGA type with the balls instead of feet.