When PENTIUM 'M' hits the desktop - how much would an 800fsb help?

[MadRat]

Its not a matter of "if" but "when" Pentium M hits the desktop. Right now its mainly a supply issue with Intel seemingly unable or unwilling to oversupply the chip to the market. The mobile version of Pentium M is still using the 400fsb at its maximum performance settings, which makes sense for saving crucial battery life. However, when the Pentium M hits the desktop there is no reason Intel should not release it at an 800fsb or higher and keep it pin-compatible with first generation Prescott-capable Pentium 4 boards.

So, if the Pentium M is running on an 800fsb, how much performance would it likely gain? I'm guessing that its 1MB L2 cache would make it less of a gain than what the Pentium 4 enjoyed moving from the 533fsb to the 800fsb.

 

[jjyiz28]

i don't think the pentium m chips are able to scale as high as regular p4 800mhz chips. this was intentional to keep energy usuage even lower. therefore im not sure if it could go to 800mhz fsb.

 

[AkumaX]

are you talking about the p-m (which is based on the p3-m architecture) or the p4-m?

 

[jjyiz28]

Originally posted by: AkumaX
are you talking about the p-m (which is based on the p3-m architecture) or the p4-m?

we are talking about pentium-M NOT pentium4 mobile

 

[Soulkeeper]

yeah i don't think they will be making a desktop version of the centrino
it performs well at lower clock speeds but just isn't designed to scale or to compete with even the current generation P4 revisions

centrino (new pentium M) was designed specifically for low heat laptops while still offering good performance

also they have 1 meg of cache which isn't cheap to produce

 

[yhelothar]

what if they pumped Pentium-Ms with 1.5V?
i bet they would hit like 2.4GHz... kill desktop P4s..

 

[Soulkeeper]

yes but they need twice the cache to be so competitive with the P4
and they would have to disable the power saving features which in turn might increase performance slightly

the pentium M is just a modified P3 core which means it has fewer pipelines than the P4 and in turn makes it a stronger performer at equal clock speed but it was not designed for hi clock speeds and i doubt increasing the voltages would get you very far without servere modifications to the die design itself (like those already done and being done in the P4 line)

 

[Shimmishim]

Originally posted by: virtualgames0
what if they pumped Pentium-Ms with 1.5V?
i bet they would hit like 2.4GHz... kill desktop P4s..

considering that a 1.6 ghz centrino is almost or comparable to a 2.4 ghz p4 desktop... these babies will fly at 2.0 ghz which they will be doing next year...

then again the prescott is going to have 1 meg of L2 as well... so imagine that.... 3.4 ghz+ + 1 meg of L2... yummy...

 

[jswjimmy]

the p-m is only for notebooks(m=moble). it is i a very low power low bat use cpu. it only uses like 5wats, but in return its very slow but still very good(1.4g=2g)for a desktop it would be cheaper to buy a p4 2g about half the price. p-m's will NEVER BE ON DESKTOPS.

 

[oldfart]

Here is a desktop mobo that can use the Pentium M. It's uATX but does have an AGP slot. This would make a very nice HTPC.

 

[MercenaryForHire]

Originally posted by: oldfart
Here is a desktop mobo that can use the Pentium M. It's uATX but does have an AGP slot. This would make a very nice HTPC.

WTH, why didn't someone point this out before I built my Tualatin box?

/calls to place order

Edit - MSRP for a single board is $353. Add a P-M 1.3 for $220. To paraphrase ... "Ai Yo!" :Q

- M4H

 

[Wingznut]

Originally posted by: MadRat
Its not a matter of "if" but "when" Pentium M hits the desktop.

I wouldn't hold my breath, if I were you.

 

[MercenaryForHire]

Originally posted by: Wingznut

Originally posted by: MadRat
Its not a matter of "if" but "when" Pentium M hits the desktop.

I wouldn't hold my breath, if I were you.

/points to above Radisys LS855 desktop motherboard

- M4H

 

[Mingon]

Better off ordering the powerleap converter and chip, I couldnt persuade then to let me buy just the converter.

 

[MercenaryForHire]

Originally posted by: Mingon
Better off ordering the powerleap converter and chip, I couldnt persuade then to let me buy just the converter.

Convertor?

I am intrigued by your ideas and wish to subscribe to your newsletter ...

- M4H

 

[oldfart]

I looked at the Powerleap site and could not find that converter. What is the model? This would be a Socket 479 to 478 conversion.

 

[Mingon]

The tech support manager at powerleap cpnfirmed to me that they have a powerleap cpnverter that works on 865/875 boards, but would only sell the converter with the processor :brokenheart: so I have had to sell my PM1.4