What watts on a PSU r required for a Pentium 4 3.8GHZ single core?

[Shpati]

sorry to ask a question about an old processoer. i know most of u r thinking y even, but i can get it pretty cheap on ebay and i will not have to do anything new with my mother board, (btw do u guys think it will show a decent increase in performance, is it worth a few bucks?) What watts on a PSU is required for a Pentium 4 3.8GHZ single core processor?Thinking about upgrading my 3.0ghz Pentium 4 Prescott for a 3.8ghz prescott processor. However, I am not sure what kind a of Psu is required for a 3.8 ghz processor. Is 400 watts enough? i tried do research but i guess since this is a old single core processor no one cares for it but me.

ati 4670 512mb
dell e510
4gb ram.
i have this psu

http://www.newegg.com/Product/Product.aspx?item=N82E16817139008&RandomID=831067566964920100810150541

everything else is basically generic dell stuff.

 

[Fetal]

Yes Yes. 400W is enough. with your psu... more than enough!.

 

[Shpati]

Best answer selected by Shpati.