Intel Core i7 Processor Models and Pricing Revealed!

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aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
21,042
3,522
126
Originally posted by: MarcVenice
Aigo, whats the problem man. A waterloop on the CPU + NB is going to be a CPU loop only now with nehalem. It shouldn't matter to much for heatcontrol.

assuming your on water. LOL.

But the NB never gave off too much heat to begin with. :T

Im talking about the people on Air. :T
 

taltamir

Lifer
Mar 21, 2004
13,576
6
76
yesturday i replaced my fileserver's CPU from an Athlon X2 3800+ 2.0Ghz windsor F2 90nm 89W TDP, to an Athlon X2 BE-2300 2.3Ghz 45 W TDP...
The TDP went down from 89 to 45 watts on the "best efficiency" model. My idle system power went down 9 watts (110 instead of 119). My power during file transfer to the server stayed exactly the same (152 W on both), although it is a little faster, I think... I didn't actually check maxed out power since it will never be maxed out, it is a file server, it writes files and it sits idle... But during boot I saw the old chip spike to 209 and the new one will only spike to 179. but... a fraction second spike during boot up is not exactly indicative..

Interestingly, if the system is OFF and plugged to the ethernet cord, power consumption went down from 7 to 5 watts.

Still, I expected a greater decrease during idle... (it is still a worthwhile switch though).

Anyways...
AMD: http://en.wikipedia.org/wiki/L...8F2_.26_F3.2C_90_nm.29
Intel: http://en.wikipedia.org/wiki/L...Core_2_microprocessors

Notice how every family is the same TDP despite having a voltage range and different speeds.
 

Idontcare

Elite Member
Oct 10, 1999
21,110
59
91
Originally posted by: taltamir
yesturday i replaced my fileserver's CPU from an Athlon X2 3800+ 2.0Ghz windsor F2 90nm 89W TDP, to an Athlon X2 BE-2300 2.3Ghz 45 W TDP...
The TDP went down from 89 to 45 watts on the "best efficiency" model. My idle system power went down 9 watts (110 instead of 119). My power during file transfer to the server stayed exactly the same (152 W on both), although it is a little faster, I think... I didn't actually check maxed out power since it will never be maxed out, it is a file server, it writes files and it sits idle... But during boot I saw the old chip spike to 209 and the new one will only spike to 179. but... a fraction second spike during boot up is not exactly indicative..

How efficient is your PSU in this wattage range? You might save more watts by switching to a lower-rated PSU with a higher efficiency in this load regime.
 

Byte

Platinum Member
Mar 8, 2000
2,877
6
81
Originally posted by: Idontcare
Originally posted by: taltamir
yesturday i replaced my fileserver's CPU from an Athlon X2 3800+ 2.0Ghz windsor F2 90nm 89W TDP, to an Athlon X2 BE-2300 2.3Ghz 45 W TDP...
The TDP went down from 89 to 45 watts on the "best efficiency" model. My idle system power went down 9 watts (110 instead of 119). My power during file transfer to the server stayed exactly the same (152 W on both), although it is a little faster, I think... I didn't actually check maxed out power since it will never be maxed out, it is a file server, it writes files and it sits idle... But during boot I saw the old chip spike to 209 and the new one will only spike to 179. but... a fraction second spike during boot up is not exactly indicative..

How efficient is your PSU in this wattage range? You might save more watts by switching to a lower-rated PSU with a higher efficiency in this load regime.

You can go for an FPS Zen which has a lot lower idle vampire draw, about half a watt with no load and 3-4 watts with a few miliamps of laod. Most of the power supplies i've used usually vampire some 10 watts. However they are pretty expensive and Fortron has been getting pretty low ratings recently.