How can I compare effective power usage of two CPUs / CPU+Mobo+Mem combinations?

Posted by einpoklum on Super User See other posts from Super User or by einpoklum
Published on 2014-08-25T15:04:07Z Indexed on 2014/08/25 16:22 UTC
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cpu

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comparison

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power-consumption

I have this server which does mostly file sharing (with the associated storage). No serious number crunching and it isn't the firewall. My current box has a Celeron D processor (Prescott 336 2.8 GHz); and I'm considering replacing it with a Pentium D (Smithfield 805 2.66 GHz) - for reasons which do not involve performance.

How can I know whether one can expect a higher or lower power consumptipn for the change? And how can I estimate the power consumption for each option?

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