Frequency scaling survey

[Owen Townend]

2008/11/19 Slim Joe <slimjoe2k8 at gmail.com>:
> Could some list members post the result of the
> following two commands (second "cat" command may
> break across two lines):
>
> cat /proc/cpuinfo | grep 'model name'
> cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies
>
> I'm looking to upgrade my current Sempron 1.8GHz
> and am interested to find which mainstream dual-
> core processor (Intel or AMD) is most efficient
> at doing nothing. (The Atom would be too slow
> for me.)
>
> My results:
>
> model name : AMD Sempron(tm) Processor 3000+
> 1800000 1000000
>
> TIA

Hey,

Work comp:

% cat /proc/cpuinfo | grep 'model name'
model name      : Intel(R) Core(TM)2 Duo CPU     E8400  @ 3.00GHz
model name      : Intel(R) Core(TM)2 Duo CPU     E8400  @ 3.00GHz
% cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies
3000000 2667000 2333000 2000000
3000000 2667000 2333000 2000000

Mythbox:

% cat /proc/cpuinfo | grep 'model name'
model name      : AMD Athlon(tm) Dual Core Processor 4850e
model name      : AMD Athlon(tm) Dual Core Processor 4850e
% cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies
2500000 2400000 2200000 2000000 1800000 1000000
2500000 2400000 2200000 2000000 1800000 1000000

The 4850e has only a 45W envelope.. so except against the mobile procs
it will probably be ahead in the 'most efficient at doing nothing'
category.  Especially against my home desktop's Phenom 9600 (125W
proc, not powered on at the moment).

cheers,
Owen.