What are the pc PSU with higher elettric efficience???

[AvEnGeRs]

Hello to all!
I must choose some PSU (of different various power request...!) for various different pc that must run always on (so the elettric waste it's important...not like when the pc is one and the wast can be unnoticeable)

So i want to know: what are the psu with higher elettronic efficience??? (i had serached much, but it's not a caratterstic of people said, or that were tested....unluskcly )

i means model and/or product...thanks much in advance for the answer!!

My best greetings!

[ragtop]

In general, the amount of power that a CPU uses is about equal to the amount of heat that must be dissipated by the heat sink. So, the size of the heat sink is actually a good indicator.

The VIA C3 processor is very efficient, but not very fast. The P3 is also pretty efficient, but again - it doesn't keep up with the current breed of CPU's.

As far as I know, there's not too much difference between the current high end Athlon & P4 CPU's - although I'm sure someone can post the exact wattage specs for each model.

[Nighthawk]

Tom's Hardware did a review (http://www6.tomshardware.com/howto/20030609/index.html) a while ago on some high-end power supplies and their efficiencies varied between 64.5% and 78.1%. The best one was a Fortron 400W power supply.

[AvEnGeRs]

Originally posted by Nighthawk
Tom's Hardware did a review (http://www6.tomshardware.com/howto/20030609/index.html) a while ago on some high-end power supplies and their efficiencies varied between 64.5% and 78.1%. The best one was a Fortron 400W power supply.

Thanks !
I have read some time ago...

...But

A) tomshardware isn't neutral.... so we cannot have so much confidence (=be sure of what he told! )

b) hoping that in this case he have said the trust (....so much improbable)...we know just a 400w PSU and for other power???
we cannot know if in the other power win Fortron again in efficiency (