power + heat output?

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Gawd
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Mar 9, 2000
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I'm thinking about buying a cheap Dell PC to use a DVR server with my Xbox 360 as a media extender. I haven't built a PC in a while, so I'm a bit out of the loop. This machine will be on quite a bit, so I'm looking for the most energy / heat efficient processor possible. My choices at Dell are the Athlon X2 and the Core 2 Duo. Which one of these puts out the least heat and uses the least amount of power?

Obviously this is going to change depending on the clock speed of the CPU, etc.
 
For the X2's, it depends on the model... most of them are 65W though. All Core2Duos are 65W. Other chips:

62W - Sempron 3400+, single core
45W - AX2 BE2300/BE2350, dual core
35W - Celeron 400 series, single core (NO EIST)
35W - Sempron 3500+, single core

If they have the X2 BE2300 or BE2350, go for that. If not, go for a Core based chip, like the Celeron 420, Pentium E2140, or E4300. I believe the Core2s run cooler than the Athlon X2s.
 
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