Intel's dual-core CPUs to set new record high in power consumption

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Lifer
Nov 11, 2004
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Intel's dual-core CPUs to set new record high in power consumption

By Wolfgang Gruener, Senior Editor

January 17, 2005 - 22:52 EST

Chicago (IL) - Intel's upcoming dual-core processors once again will test the limits of power consumption. According to documents seen by Tom's Hardware Guide, the Smithfield CPUs are rated at a thermal design power of 130 watts, an increase of 13 percent from today's Prescott processors.

Dual-core and multicore chips promise to be one of the most important advances in processor development history. Intel and AMD claim to be able to achieve new performance levels by integrating two processor cores into one package. This apparently will be possible even with processor frequencies significantly below today's fastest processors. We were also told in the past that these speed gains will require less or little more power than an Athlon 64 or a Pentium 4 5xx/6xx.

At least Intel appears to miss this goal. Documents released to system builders specify the Thermal design power (TDP) of Smithfield processors at 130 watts. This represents an increase of more than 13 percent over today's Pentium 4 5xx (Prescott) and the upcoming 6xx (2 MByte L2 Cache), which post 115 watts. Maximum supply current climbs from 119 ampere to 125 ampere. The new chips also consume more power than Pentium 4 Extreme Edition 3.46 GHz processor (116.7 watts) and Intel's most demanding chip: The Itanium 2 1.6 GHz consumes 122 watts.

p4_2 Considering that Smithfield chips integrate two processor cores and a switch from a 90 nm to a 65 nm processor manufacturing process brings an increase in leakage current, a power consumption of 130 watts may sound acceptable. But the fact that the Pentium 4 560 (3.6 GHz, 115 watts) already runs at the processor's thermal limits, it is likely that Smithfield processors at least will require more powerful cooling solutions than the conventional cooling fans we are used to at this time.

Today's power consumption already is at a high level and it is questionable, if Intel is heading in the right direction. The company in fact may be well on track to soon produce "small nuclear power plants" - a scary scenario the company intends to avoid, according to a speech of chief technology officer Pat Gelsinger at ISSCC back in 2001.

Intel intends to release the dual-core Smithfields later this year. Competitor AMD so far has not released TDP specifications for its dual-core processors, which initially will be available only for servers.

http://www20.tomshardware.com/...s/20050117_225242.html
 

magomago

Lifer
Sep 28, 2002
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Well its not that much more over the Presscott, which is true. I'd also expect probably rougly the same numbers from AMD (percent increase...not a jump to 130Watts ;) )
 

biostud

Lifer
Feb 27, 2003
18,227
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Originally posted by: magomago
Well its not that much more over the Presscott, which is true. I'd also expect probably rougly the same numbers from AMD (percent increase...not a jump to 130Watts ;) )

AMD says there Dual Cores will have a maximum of 89W
 

Duvie

Elite Member
Feb 5, 2001
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I am not surprised AMDs will be so low....The sckt 939's and think lower speed chips initially are in the low 60-70's now....And since it has been said a few times that the current A64's with the Hypertransport technology has always been designed with dual cores in mind. I think that minmizes some of that as well..

I keep hearing just 2 prescott cores...That is too bad...
 

Duvie

Elite Member
Feb 5, 2001
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Originally posted by: Computer MAn
Originally posted by: Duvie

I keep hearing just 2 prescott cores...That is too bad...

They take a already hot chip and make it hotter not a good combination


I agree...I thouht there was going to be some thought into this.....The prescott is the reason I am in an A64 machine right now...That and with 2 case fans turned off and chilling with low temps..

If rumor has it when dual ocre comes out to the desktop it may be cxompatable with sckt 939 boards...

Now remember AMD is releasing dual core to server/work stations first then desktop....Intel is doing vice versa. However Intel may not have much of a choice. bunching off the thermal ceiling now.

If AMD can get those SS/SOI chips going they may not need a dual core for another 6-12 months anyways....


Intel keeps rasing the themal specs we will have to devise CTX standard with water cooling in mind....
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
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Intel keeps rasing the themal specs we will have to devise CTX standard with water cooling in mind....
Good one..... I agree, too much heat. I think AMD will be OK If they run dual 1.8 or so to start....
 

Cerb

Elite Member
Aug 26, 2000
17,484
33
86
Last year, Intel had, as some show or other, some heatpipe coolers that made the Hyper6 look simple and small. Those things, stuck to the case for reinforcement (BTX), might do the trick just fine...
(can't find pics ATM)
In the mean time, they need to get a Pentium-M desktop CPU out and Pentium-M Xeon, and give the Opterons some competition :).

The other thing to note is that Intel's TDP can be exceeded running heavy apps, where AMD's TDP is the theoretical maximum, and as cool as they run, rarely do the A64 parts get even close.

Lastly, when you see Duvie (who did excellent benchmarks with heavy use of P4 HT) saying anything bad about a P4-based CPU, you know it ain't good :).

I think AMD should get the dual-core server parts out ASAP, whether they need to or not. If one of the Tyan or Arima Opteron server boards could be BIOS-flashed and then have a dual-core plugged in, you're basically talking a 50-100% performance increase (depending on what you got at the time, from 1.4GHz-2GHz), with no additional rack space, and not enough additional heat to worry about. DIY admins (and their bosses, as long as prices match similarly with current Opterons--$1500 or less for the high-end) will have a nice, neat, very attractive upgrade path; not being left alone for being early adopters.
 

Duvie

Elite Member
Feb 5, 2001
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I am still a fan of HT on the p4...I miss the multitasking power. This A64 is faster straight out of the gate on most everything. HT is only factor that keeps those 3.5ghz score from being close ans even still leading at this point.

I was getting fed up with the heat on the northwood let alone take the chance of getting any warmer with the prescotts. That and with an elongated pipe meaning for me to make it worth an dupgrade on the p4 sector I needed a new board anyways and at least 3.6-3.7ghz to possibly equal what I had.....NO thanks!!!!

I have less fans runing, quieter, and still very fast now all around!!! All of that while ocing the piss out of it. Other then cinebench, most everything I have tested shwos my A64 is faster in CAD and actually drove my soft modded quadro cards higher in specview 7.1 and 8....


I am not done with Intel...i would still love a dual exon 2.4ghz oc'd to 3.4-3.6ghz with 4 virtual cpus....That would help my rendering times in CAD...opeterons would do, but cost too much, and I ca't oc them to get the bang for the buck....

Duvie says AMD :thumbsup: :thumbsup:
 

PlatinumGold

Lifer
Aug 11, 2000
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Originally posted by: Duvie
I am still a fan of HT on the p4...I miss the multitasking power. This A64 is faster straight out of the gate on most everything. HT is only factor that keeps those 3.5ghz score from being close ans even still leading at this point.

I was getting fed up with the heat on the northwood let alone take the chance of getting any warmer with the prescotts. That and with an elongated pipe meaning for me to make it worth an dupgrade on the p4 sector I needed a new board anyways and at least 3.6-3.7ghz to possibly equal what I had.....NO thanks!!!!

I have less fans runing, quieter, and still very fast now all around!!! All of that while ocing the piss out of it. Other then cinebench, most everything I have tested shwos my A64 is faster in CAD and actually drove my soft modded quadro cards higher in specview 7.1 and 8....


I am not done with Intel...i would still love a dual exon 2.4ghz oc'd to 3.4-3.6ghz with 4 virtual cpus....That would help my rendering times in CAD...opeterons would do, but cost too much, and I ca't oc them to get the bang for the buck....

Duvie says AMD :thumbsup: :thumbsup:

i have a duallie xeon 2.4 with 2 gb of ram. i'm pretty dissappointed with multitasking aspect of this machine. i'm looking to get a duallie opteron 244 by the end of the month. i'll let you know how i think the two compare.
 

Duvie

Elite Member
Feb 5, 2001
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400fsb chips???

That is why I wanted to Oc the piss out of them..I wanted as close to 800fsb as possible and PC3200....duallie opterons will probably be better for you, but that is nbot a fair comparison on clock speed....How much are you paying???
 

PlatinumGold

Lifer
Aug 11, 2000
23,168
0
71
Originally posted by: Duvie
400fsb chips???

That is why I wanted to Oc the piss out of them..I wanted as close to 800fsb as possible and PC3200....duallie opterons will probably be better for you, but that is nbot a fair comparison on clock speed....How much are you paying???

i've been offered to opteron 244, 1 gb of ram, motherboard and eps powersupply for $800.00.
 

PlatinumGold

Lifer
Aug 11, 2000
23,168
0
71
Originally posted by: Duvie
400fsb chips???

That is why I wanted to Oc the piss out of them..I wanted as close to 800fsb as possible and PC3200....duallie opterons will probably be better for you, but that is nbot a fair comparison on clock speed....How much are you paying???

btw, you asked, it's 400 fsb with Rambus Ram.
 

Anubis08

Senior member
Aug 24, 2004
220
0
0
It is a conspiracy. They never want us to leave our computers. Now we can cook our food while we play games and surf the internet.
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
25,534
14,484
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Duvie, you need to bring some of those apps over (Duvie lives 10 minutes away), and lets see what my duallie can do. You can report back to everyone what you think....
 

Duvie

Elite Member
Feb 5, 2001
16,215
0
71
Originally posted by: PlatinumGold
Originally posted by: Duvie
400fsb chips???

That is why I wanted to Oc the piss out of them..I wanted as close to 800fsb as possible and PC3200....duallie opterons will probably be better for you, but that is nbot a fair comparison on clock speed....How much are you paying???

btw, you asked, it's 400 fsb with Rambus Ram.

that makes some sense...They are 400fsb chips with not HT...newer 2.4ghz chips on the newer chipset liek aasus ncch-dl woul do much better...

800 bucks is a nice deal....

I would buy opterons in a heart beat if I could get ones on a board I can OC....I was going to get 2 2.4ghz 533fsb chips with an asus mobo for 650.00...i had the memory and the board does not need ECC ram....I was getting the power supply anyways....At 3.4-3.6ghz with HT and near 800fsb this would take some nice opterons to beat them in the apps I run. I rpiced what I saw in the benchmarks to be similar to the oc'd level of 3.4-3.6ghz and I hit the floor... I AM CHEAP!!! That is whay I oc....

 

Duvie

Elite Member
Feb 5, 2001
16,215
0
71
Originally posted by: Markfw900
Duvie, you need to bring some of those apps over (Duvie lives 10 minutes away), and lets see what my duallie can do. You can report back to everyone what you think....


I just got my ADT2004 setup all again with this quadro like card now....I am going to rerun an animation I did with my p4 and then I will install it on your machine and see what it can do....It is multithreaded for rendering!!!

I also have 3dsmax6 and trial 7, but really no projects yet.....


 

Blazer

Golden Member
Nov 5, 1999
1,051
0
0
will not bite that hook,prescots are too hot now,so much that it causes warpage under the socket,if intel cannot offer something better [not hotter] than what i have now,then i will not upgrade.

buying P4s and setting them in the closet,as the prices WILL go up.

I will not be used as a ginny pig!
 

Fozzie

Senior member
Oct 9, 1999
512
0
0
I am not done with Intel...i would still love a dual exon 2.4ghz oc'd to 3.4-3.6ghz with 4 virtual cpus....That would help my rendering times in CAD...opeterons would do, but cost too much, and I ca't oc them to get the bang for the buck....

Actually I just read that the dual-core's will not have HT enabled...


*Edit*

Yup here it is:

Anandtech CES coverage

"Task Manager shows the two cores in action, note that there is no Hyper Threading on Dual Core CPUs so there are only two physical CPUs listed"
 

PlatinumGold

Lifer
Aug 11, 2000
23,168
0
71
Originally posted by: Duvie
Originally posted by: PlatinumGold
Originally posted by: Duvie
400fsb chips???

That is why I wanted to Oc the piss out of them..I wanted as close to 800fsb as possible and PC3200....duallie opterons will probably be better for you, but that is nbot a fair comparison on clock speed....How much are you paying???

btw, you asked, it's 400 fsb with Rambus Ram.

that makes some sense...They are 400fsb chips with not HT...newer 2.4ghz chips on the newer chipset liek aasus ncch-dl woul do much better...

800 bucks is a nice deal....

I would buy opterons in a heart beat if I could get ones on a board I can OC....I was going to get 2 2.4ghz 533fsb chips with an asus mobo for 650.00...i had the memory and the board does not need ECC ram....I was getting the power supply anyways....At 3.4-3.6ghz with HT and near 800fsb this would take some nice opterons to beat them in the apps I run. I rpiced what I saw in the benchmarks to be similar to the oc'd level of 3.4-3.6ghz and I hit the floor... I AM CHEAP!!! That is whay I oc....

actually, they are ht enabled. my task manager shows 4 separate processor threads.