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Subject: Re: Not hardly, look.

Author: Matt Taylor

Date: 11:46:13 12/07/02

Go up one level in this thread


On December 07, 2002 at 14:25:43, Aaron Gordon wrote:

>On December 07, 2002 at 13:53:27, Jorge Pichard wrote:
>
>>On December 07, 2002 at 12:41:21, Fernando Villegas wrote:
>>
>>>Hi all:
>>>Time ago I had for my Me Windows a "Rain" little program capable of cooling the
>>>cpu. Now I use an Athlon and XP winows and it seems there is not an equivalent
>>>to the rain thing. WAnybody knows what to do? I am afraid any day my PC will
>>>just explode.
>>>Fernando
>>
>>
>>As you can see an AMD XP 2700+ runs as HOT as the latest P 4 2.80GHz
>>
>>                                 Maximum Heat
>>                                  Dissipation
>>
>>AMD Athlon XP 2700+ (Thoroughbred-B) 68.3W          0.13-micron
>>AMD Athlon XP 2800+ (Thoroughbred-B) 74.3W          0.13-micron
>>
>>
>>Intel Pentium 4 2.66GHz (Northwood) 66.1W           0.13-micron
>>Intel Pentium 4 2.80GHz (Northwood) 68.4W           0.13-micron
>>
>>
>>http://www.anandtech.com/cpu/showdoc.html?i=1718&p=3
>>
>>Pichard
>
>This is false. You Anandtech is comparing the "typical" wattage for the P4 to
>the "maximum" wattage for the AthlonXP. Now, tell me anandtech isn't biased.
>Here's proof he is doing it, too. This is out of the Intel datasheet!
>
>"2. The numbers in this column reflect Intel’s recommended design point and are
>not indicative of the maximum
>power the processor can dissipate under worst case conditions. For more details
>refer to the
>Intel® Pentium® 4 Processor in the 478-Pin Package Thermal Design Guidelines"
>
>Now, as you can see from http://users.erols.com/chare/elec.htm it shows the
>maximum wattage is 33.3% over the typical wattage for the other P4's. Now, if
>you take the current wattage multiply it by 1.333 you get the maximum wattage.
>Not you can compare it to the AthlonXP.
>
>Here are the REAL wattages. Listed by highest to lowest watts...
>
>P4-3.06GHz - 109.06 watts
>P4-2.8GHz  - 91.18 watts
>P4-2.66GHz - 88.11 watts
>P4-2.53GHz - 81.98 watts
>P4-2.4GHz  - 79.71 watts
>XP-2800+   - 74.3 watts
>XP-2700+   - 68.3 watts
>XP-2600+   - 68.3 watts
>XP-2400+   - 68.3 watts
>XP-2200+   - 62.8 watts
>
>As you can see the P4's are much hotter. AMD chips only feel hotter because for
>some reason they feel the need to ship them with horrible heatsinks. Put on any
>large copper heatsink and you won't even come close to having a problem.

Official P4 power dissipation ratings:
http://www.intel.com/support/processors/pentium4/thermal.htm

Note that these are NOT the maximum power dissipation ratings, only the
"average" rating as computed by Intel.

This site is not official, but I haven't found a listing on AMD's website, and
it's annoying to troll through all the spec sheets to find them.
http://www.doerte-richter.de/mulle-78/AMD/amd_term_power.htm



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