linux-kernel - Re: AMD Dual Core vs. Quad

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Message-Id: <200806180022.08385.alistair@devzero.co.uk>
Date:	Wed, 18 Jun 2008 00:22:08 +0100
From:	Alistair John Strachan <alistair@...zero.co.uk>
To:	mperkel@...oo.com
Cc:	linux-kernel@...r.kernel.org
Subject: Re: AMD Dual Core vs. Quad - Power Management

On Tuesday 17 June 2008 23:00:25 Marc Perkel wrote:
> Been running a few tests and an AMD motherboard booting 2.6.25 from flash
> uses 0.33 amps if the CPU is a AM2 Athlon 6000. But if I used a Phenom Quad
> core CPU 9550 it pulls 0.55 amps.
>
> In theory the 9550 should pull less because it's a lower TPD and the phenom
> processor is supposed to be smarter about power management.

Not all 6000+'s have the same TDP. Maybe you have an F3 stepping 6000+ which 
has an 89W TDP, lower than a quad core Phenom (which is 95W only AFAICT).

Doesn't really explain the power gulf, though.

-- 
Cheers,
Alistair.

137/1 Warrender Park Road, Edinburgh, UK.
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