Prescott Heat Issues...

spud · Jul 25, 2003

OK with all this talk about the heat output/draw issue i decided to check about. According to <A HREF="http://www6.tomshardware.com/cpu/20030623/images/cpu_history_big.gif" target="_new">This</A>, its virtually impossible for the Scotty to generate that much heat at its introduction. Less V-core voltage, smaller gates, and transitors as well as less leakage and resistence due to the new 0.09u manufactureing process. Its literally impossible unless Intel moved to 32bit ALU's in the Scotty. Which is odd since the Tejas was to have that as its "BIG" thing.

-Jeremy

:evil:

<A HREF="http://service.futuremark.com/compare?2k1=5341387" target="_new">Busting Sh@t Up!!!</A> :evil:

<A HREF="http://service.futuremark.com/compare?pcm=1400777" target="_new">Busting More Sh@t Up!!!</A> :evil:

Mephistopheles · Jul 25, 2003

I'd like to know one thing: where is all this heat coming from, if the damned beast is 90nm-tech based? It can't be the extra cache, or the new Xeon would have heat problems too. What is it? <A HREF="http://www.chip-architect.com/news/2003_04_20_Looking_at_Intels_Prescott_part2.html" target="_new">Chip-architect</A> has a map of Prescott's die... Apparently, prescott is also a tad bigger, which should ease heat issues a bit. I'll read the whole thing in detail to check for big die differences between northwood and prescott...

Well, it is still very possible that prescott's heat issues are only rumors. We should wait for review sites to give their "verdict" on that. I think it's very likely that this is not true, but that's just me.

Mephistopheles

HardWareBoss · Jul 25, 2003

That does it. I'm buying a Prescott from Intel. I'll let you guys know about heat!!!!

eden · Jul 25, 2003

I'm telling you, it's only AMD fanboys trying to desperatly save AMD by making Intel look bad in their upcoming CPU. It's inevitable! Prescott will be a new evolutionary CPU both in terms of features/performance AND physical advancements! (process technologies added)

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HardWareBoss · Jul 26, 2003

I've been waiting how long now for hammer to be released. I bought Intel P4 2.4c. At least I did not have to wait all most 2 years for this CPU.

traviss187 · Jul 26, 2003

prescott should be a big step forward.. but tejas now thats what I'm talking about..... going to be sweet

HardWareBoss · Jul 26, 2003

You said it. Intel plans on 2nd half of 2004 for Tejas. Do you buy Prescott or Tejas?

POPEGOLDX · Jul 26, 2003

yeah i plan on buying a casino on the moon in late 2004.... i know wanna buy some stock in it.

POPEGOLDX · Jul 26, 2003

this PRESCOTT rumour was not started or supported by any so call AMD FAN BOYS

why is it when something negative about INTEL comes out... its always FAKE FUD MADE UP BY AMD FAN BOYS

if this was about AMD... u would accpet it as gospel truth

longhorn2005 · Jul 26, 2003

I smell a "fanboy" burning

HardWareBoss · Jul 26, 2003

He's been burning for a long time. Lets send him to the moon. Since that's where he wants to go.

Kelledin · Jul 26, 2003

Oh, it's possible. Anything is possible. And despite people ragging on theinquirer.net, their sources are actually pretty good. Their moles are legendary.

(BTW, your chart seems a little inaccurate. It's failing to actually list max power draw for the Intel chips, just "thermal design power.")

Even if it's true, though, I personally doubt Intel would release some fry baby of a core, especially when they're not in any desperate second-place crunch against AMD. The most we'd see of it would be the Prescott core getting held up a bit while Intel makes some revisions. And honestly, I've pretty much come to expect any new core to be late by at least a year. So it went with Athlon, with Northwood, with Hammer, and I suppose now with Prescott. Early roadmaps are just far too optimistic.

I can love my fellow man...but I'm damned if I'll love yours.

scottkli · Jul 26, 2003

On the issue of heat, is this why Abit went with a new cooling system on their mainboard Max3? I have read that it undoubtably is going to support the Prescott, are they gearing up for heat issues?

TknD · Jul 26, 2003

In my opinion... more transistors = more heat. Obviously that's not the only problem, probably more like how often the transistors are used. Then there's volts and amps at the end of it all.

I wouldn't be too surprised if the next chip from intel is a bit hotter than the latest. Based on the history of processors, faster means more heat. There have only been attempts to "slow down" how much heat is produced but not much effort in design power-efficient processors (for desktop cpus). By "slow down" I mean that they try to get the heat to a level that will allow the processor to run without extremely expensive cooling solutions.

Here's a good page with a lot of information about the electrical specifications and estimated heat disipation of processors including the latest available processors:
http://users.erols.com/chare/elec.htm

Mephistopheles · Jul 26, 2003

You're right, prescott is supposed to have something like 100+ million transistors (NW has half that amount, as far as I know.) The high heat dissipation probably also means - if the engineers at Intel did their work respectably - good overall processor performance. But that's just speculation, of course...

BTW, very interesting link you've got there (<A HREF="http://users.erols.com/chare/elec.htm" target="_new">clicky</A>). Wow, Itanium 1.5Ghz lists as 107W and up to 100 amps of current... The processor is a powerhouse anyway...

Well, anyway, if those rumors turn out to be true and Prescott does have heat issues, then I hope it can deliver at least excellent performance. (kind of have the feeling it will, anyway...

)

Mephistopheles

juin · Jul 26, 2003

A jap website give more accurate number.

As i say they are speaking of the 3.6GHZ and a MAX power consumation of 103 watt and a typical power consumation of 90 there is the trouble normaly the typical power is at 75% of the max as you say but presccott seem to be at 90%.Can be releate to massive SMT test

In any case the this power consumation is support by mothersboards as it power consumation is lower that actual 3.2 GHZ NW-C.

If is true and not solve (((the chip could have been a old sample))) the 4ghz barrier will have to be cross on grantsdale.

The possibility of any trouble on the new 90NM process that be relate to so much stuff.90 NM node new gate lenght new dielectrique new wafer size lack of experience on 300mm wafer.

I have hard time believe this rumor as Dothan been accelerate.I have also not able to know if there were speaking of Thermal desigh guide or else

I dont like french testEdited by juin on 07/26/03 01:26 PM.

Mephistopheles · Jul 26, 2003

Would it be too naive to consider that, because Prescott's typical power consumption is 90% of its max consumption versus 75% in NW, it utilizes its available resouces (i.e. transistors and so on) much better? Maybe they improved HT.

Wouldn't that mean that the processor itself might also be considerably faster than NW? Just wild guessing here, correct me if I'm wrong.

Mephistopheles

traviss187 · Jul 26, 2003

because of the delayed release of prescott because of market conditions, I think intel would have had additional time to work with any heat issues and also because of the already lengthy delay, I'd put my money on it being released fairly soon.. asuuming amd maintains their release date (fingers crossed)

dhlucke · Jul 26, 2003

When all is said and done, I want to know how this heat is going to be dissipated. The 3.6Ghz Prescott will be at over 100W, which pretty much means you can't use the computer in a small room in my town at least, but what about noise?

I have a very hard time with my 19" monitor and my 1 Ghz T-bird. My room is small and my air conditioning isn't very good. The room heats up to temperatures that make me sweat. At least it isn't noisy though.

Any news on the cooling solution for the Prescott?

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eden · Jul 26, 2003

While I would usually agree on new process issues, Intel is just NOT THAT clumsy. Yes their early batches could be hot, but it's a new process, which significantly reduces power and heat usually. It also features extra process technologies for leak prevention and such. It just beats me if it reaches 100W like that.
Forgot, but what was the 3.2GHZ Power Consumption? THGC didn't seem to have it on their chart.

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dhlucke · Jul 26, 2003

I think it was in the 80's.

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eden · Jul 26, 2003

So, how can the 3.2 be at 100W as some claimed?

In fact, why should a 3.4 be at 100W when its voltage will go down to ~1.2V, with refined process?
If anything, it might run very hot at first due to the new process, but extreme power consumption? I just can't believe it yet.

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traviss187 · Jul 26, 2003

I agree, intel spends hundreds of millions on thermal research.. they're not idiots

dhlucke · Jul 26, 2003

I don't see it as such a stretch. I'm pretty sure the 3.2 was in the 80's and what I've read is that the 3.6 will be in the 100's.

I haven't seen anyone claim that the 3.2 is 100W.

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dhlucke · Jul 27, 2003

Look at the link in the first post. It looks like the 3.2 Ghz Northwood is at 82W.

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