P4 vs. i3/i5 *T in power consumption and performance [migrated]

Posted by Walter Zomb on Server Fault See other posts from Server Fault or by Walter Zomb
Published on 2011-06-26T14:00:30Z Indexed on 2011/06/26 16:23 UTC
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Filed under:

virtualization

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software-raid

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power-consumption

I am running an Intel P4 prescott with HT on my home server (linux file server on encrypted disks on software-RAID5 and virtualisation host for three further machines). The performance for this purpose is really okay. When the system is idle it consumes about 140W power.

I am considering buying a new mainboard for an e.g. Intel i3-2100T or an Intel i5-2390T. Both are low power CPUs with a TDP about 40W.

Has anyone experiences how much power a recent mainboard with one of these CPUs an 3-4 'green-energy' disks (6W each) consumes? Do I get underneath the 100W threshold?

What's about the performance of these low power CPUs? Are they comparable to an Intel P4 with HT?

regards, walter

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