(Also IBM's values for power dissipation are given as typical, and are not comparable to the power dissipation values used by Intel or AMD)
AMD always gives the maximum power dissipation, Intel and IBM give typical.
(Also IBM's values for power dissipation are given as typical, and are not comparable to the power dissipation values used by Intel or AMD)
Originally posted by: Accord99
Intel uses real-world maximum.
Originally posted by: pastorjay
Ok all, here is the skinny on the heat...
Using Prescott as a space heater
Originally posted by: Duvie
Originally posted by: pastorjay
Ok all, here is the skinny on the heat...
Using Prescott as a space heater
pastorJay...did you guys test the heat with an outside thermometer??? cause we all know that the Abit solutions run much higher then others....I have seen 14c difference at idle from abit to asus mobos alone.....Want a prescott to look good just put it on one of the boards I constantly see around here with a 2.8 or 2.4 at 3.5ghz with reports of mid to low 30c at idle and load just touching 50c. The prescott would be warmer at idle but we see te temp swings from idle to load don't appear to be as much in terms of the wattage of heat of the chip and with those heatsinks and their rated c/w.......
Originally posted by: sellmen
Originally posted by: Duvie
Originally posted by: pastorjay
Ok all, here is the skinny on the heat...
Using Prescott as a space heater
pastorJay...did you guys test the heat with an outside thermometer??? cause we all know that the Abit solutions run much higher then others....I have seen 14c difference at idle from abit to asus mobos alone.....Want a prescott to look good just put it on one of the boards I constantly see around here with a 2.8 or 2.4 at 3.5ghz with reports of mid to low 30c at idle and load just touching 50c. The prescott would be warmer at idle but we see te temp swings from idle to load don't appear to be as much in terms of the wattage of heat of the chip and with those heatsinks and their rated c/w.......
Here are some results from an ASUS board:
X-bit Labs
Temperature (Idle/load, degrees Celcius)
Northwood - 30/48
Prescott - 45/61
These results were on an open testbed, in a closed case they would be warmer.
Clearly Prescott is an extremely warm processor. 15 degrees warmer than northwood, and we're only at 3.2ghz...
As for Intels thermal requirements, I'm really not sure. Without seeing the applications they used and the power dissipation numbers, its hard to say that Intels TDP and IBMs TDP are really that different. At any rate, 100+ Watts vs 25W really isn't a contest, typical or not.
Originally posted by: Duvie
Originally posted by: sellmen
Originally posted by: Duvie
Originally posted by: pastorjay
Ok all, here is the skinny on the heat...
Using Prescott as a space heater
pastorJay...did you guys test the heat with an outside thermometer??? cause we all know that the Abit solutions run much higher then others....I have seen 14c difference at idle from abit to asus mobos alone.....Want a prescott to look good just put it on one of the boards I constantly see around here with a 2.8 or 2.4 at 3.5ghz with reports of mid to low 30c at idle and load just touching 50c. The prescott would be warmer at idle but we see te temp swings from idle to load don't appear to be as much in terms of the wattage of heat of the chip and with those heatsinks and their rated c/w.......
Here are some results from an ASUS board:
X-bit Labs
Temperature (Idle/load, degrees Celcius)
Northwood - 30/48
Prescott - 45/61
These results were on an open testbed, in a closed case they would be warmer.
Clearly Prescott is an extremely warm processor. 15 degrees warmer than northwood, and we're only at 3.2ghz...
As for Intels thermal requirements, I'm really not sure. Without seeing the applications they used and the power dissipation numbers, its hard to say that Intels TDP and IBMs TDP are really that different. At any rate, 100+ Watts vs 25W really isn't a contest, typical or not.
CMON!!! Look at the heatsink they are using!!! they are using stock heatsink...Heck the stock heatsink on my abit at 3.2ghz would not look that good on my abit IC7 mobo....I bet an nice swiftech like mione with a 92mm 60cfm fan would do much better and get the those burn temps down 5-6c.....That is reasonable to say the least and proves my point....
We all need to run Asus mobos cause they make our temps look good!!! Why anyone tests temperatures on an abit mobo is beyond me....
Originally posted by: DAPUNISHER
Indeed, thanks PJ :beer: that confirmed my thinking that near silent overclocking on air isn't going to happen with this CPU in it's present incarnation. I'm looking forward to seeing how the OEM's deal with the situation, anyone have insight or info on their plans?Originally posted by: THUGSROOKnice article / comparisonOriginally posted by: pastorjay Ok all, here is the skinny on the heat... Using Prescott as a space heater
Originally posted by: MadRat
I'm surprised that the voltages are so high. I was kind of hoping they'd drop the Prescott below 1v.
It was not my intent to compare Prescott to PowerPC but simply to show the efficacy of SOI at 90nm.Originally posted by: Accord99
No, since IBM's Partially Depleted SOI implementation does not help with gate leakage, the leakage which begins to have a major impact for bleeding edge processors at 90nm. PD SOI also tends to worsen as processes shrink so the benefits to Intel would be limited.Originally posted by: klah
Rumor I heard last week has IBM asking Intel for half a billion up front and royalties per cpu to give them SOI.
Would it be worth it?
The shrink of the PPC970 is much different than Prescott, as there is no new additions or cache. Prescott meanwhile went from 55M to 125M transistors with a major revision of the core. A more comparable analogy would be Dothan, which is expected to have a TDP of 21W, compared to 25W for Banias despite adding another 1MB worth of L2 cache.IBM's New PowerPC970FX:
http://www-306.ibm.com/chips/techlib/techlib.nsf/techdocs/7874C7DA8607C0B287256BF3006FBE54/$file/PPC_QRG_1-22-04.pdf
Going from 130nm to 90nm has allowed IBM to cut power consumption @2GHz from 55W to 24.5W.
(Also IBM's values for power dissipation are given as typical, and are not comparable to the power dissipation values used by Intel or AMD)
Originally posted by: pastorjay
Ok all, here is the skinny on the heat...
Using Prescott as a space heater
Originally posted by: Redviffer
This might actually serve to bring water-cooling to the general public.Originally posted by: pastorjay Ok all, here is the skinny on the heat... Using Prescott as a space heater
Originally posted by: iwodo
Does any one have any temperture of Athlon 64 3200+??
It would be interesting to see how it compares.
The Dreamcast was liquid cooled? I did not know that.Originally posted by: sxr7171
The only time a consumer product featured liquid cooling was the Sega Dreamcast.
Originally posted by: Wingznut
The Dreamcast was liquid cooled? I did not know that.Originally posted by: sxr7171
The only time a consumer product featured liquid cooling was the Sega Dreamcast.
Originally posted by: sxr7171
Originally posted by: Redviffer
This might actually serve to bring water-cooling to the general public.Originally posted by: pastorjay Ok all, here is the skinny on the heat... Using Prescott as a space heater
I doubt it. Williamettes were worse and OEMs didn't have to resort to liquid cooling then. The only time a consumer product featured liquid cooling was the Sega Dreamcast.
Originally posted by: sellmen
Originally posted by: sxr7171
Originally posted by: Redviffer
This might actually serve to bring water-cooling to the general public.Originally posted by: pastorjay Ok all, here is the skinny on the heat... Using Prescott as a space heater
I doubt it. Williamettes were worse and OEMs didn't have to resort to liquid cooling then. The only time a consumer product featured liquid cooling was the Sega Dreamcast.
Williamettes didn't dissipate as much heat; the highest was about 75W, whereas the prescotts are over 100W.
Originally posted by: wicktron
I just opened up my Dreamcast and its not liquid cooled. Passive cooling on main chip with a small fan for exhaust.Originally posted by: WingznutThe Dreamcast was liquid cooled? I did not know that.Originally posted by: sxr7171 The only time a consumer product featured liquid cooling was the Sega Dreamcast.
Originally posted by: sellmen
Williamettes didn't dissipate as much heat; the highest was about 75W, whereas the prescotts are over 100W.Originally posted by: sxr7171I doubt it. Williamettes were worse and OEMs didn't have to resort to liquid cooling then. The only time a consumer product featured liquid cooling was the Sega Dreamcast.Originally posted by: RedvifferThis might actually serve to bring water-cooling to the general public.Originally posted by: pastorjay Ok all, here is the skinny on the heat... Using Prescott as a space heater
Originally posted by: sxr7171
Originally posted by: sellmen
Williamettes didn't dissipate as much heat; the highest was about 75W, whereas the prescotts are over 100W.Originally posted by: sxr7171I doubt it. Williamettes were worse and OEMs didn't have to resort to liquid cooling then. The only time a consumer product featured liquid cooling was the Sega Dreamcast.Originally posted by: RedvifferThis might actually serve to bring water-cooling to the general public.Originally posted by: pastorjay Ok all, here is the skinny on the heat... Using Prescott as a space heater
I'm sorry you're right. I guess this will mean the introduction of liquid cooling in mass produced computers. There's no way Dell, HP, Compaq customers are going to put up with, in this day and age, the noisy solutions these companies used for Williamette, and if they stick with air cooling Prescott machines will have even noisier cooling setups. This is like having a 100w light bulb in a box, and that is pretty darn hot.
I really think Intel should have come up with a way to keep power dissipation down, this is getting bad enough to affect some companies' air conditioning bills. If you don't believe me, I worked on a trading floor where there were so many computers so close together that you could feel the heat wafting from under the desk.