Gentoo Archives: gentoo-user

From: James <wireless@×××××××××××.com>
To: gentoo-user@l.g.o
Subject: [gentoo-user] Re: new machine : CPU : AMD FX-4100 ?
Date: Mon, 30 Jul 2012 16:47:56
Message-Id: loom.20120730T182502-728@post.gmane.org
In Reply to: Re: [gentoo-user] Re: new machine : CPU : AMD FX-4100 ? by Michael Mol
1 > > When you have full load, the CPU won't clock down. So nothing saved there.
2
3 > When you're considering full load, the TDP becomes a useful estimation
4 > of relative power consumption between different processors.
5
6 > > If you don't have full load, the clock-down doesn't save much compared to
7 > > max clocks while idle.
8
9 > This is where you're wrong.
10
11 OK. both sides are well stated.
12
13 Amp meters are less than $50 USD. They clamp around the
14 power cord, or any wires inside the computer you can fit
15 the "clamp" around.
16
17 So make your choice, based on actual measurements?
18 That's how an EE would make a decision on how
19 a given processor or software setup actually effects
20 the power consumption. REAL DATA.
21
22 Note, some of the fancier meter's have an integrator function
23 where measurements are taken frequently over a time period
24 to get an even more realistic picture of power consumption...
25
26 http://www.allaboutcircuits.com/vol_6/chpt_2/4.html
27
28
29 hth,
30 James

Replies

Subject Author
Re: [gentoo-user] Re: new machine : CPU : AMD FX-4100 ? Michael Mol <mikemol@×××××.com>
Re: [gentoo-user] Re: new machine : CPU : AMD FX-4100 ? Mark Knecht <markknecht@×××××.com>