[Arm-netbook] Power Figures (Armada vs Atom)

Paul Kench paulkench at yahoo.co.uk
Mon May 21 09:38:42 BST 2012


> -----Original Message-----
> From: arm-netbook-bounces at lists.phcomp.co.uk [mailto:arm-netbook-
> bounces at lists.phcomp.co.uk] On Behalf Of Gordan Bobic
> Sent: 21 May 2012 09:22
> To: Linux on small ARM machines
> Subject: Re: [Arm-netbook] Power Figures (Armada vs Atom)
> 
> On 05/20/2012 07:04 PM, Henrik Nordström wrote:
> > sön 2012-05-20 klockan 18:33 +0100 skrev Gordan Bobic:
> >
> >> Compulab SBC-A510, Marvell Armada 510: 9.2W
> >
> > Some measurements from Mele A1000 A10
> >
> >          u-boot idle, 0.23A at 5V = 1.15W
> >          Android idle. 0.34A at 5V = 1.7W
> >          Android busy navigating some web page: 0.55A at 5V = 2.75W
> >
> > With power management enabled it's likely a bit les..
> 
> Mighty. That is far more sensible for ARM figures.
> 
Of historical note there is a great quote in here about the power consumption of the orginal ARM chip.

http://m.reghardware.com/2012/05/03/unsung_heroes_of_tech_arm_creators_sophie_wilson_and_steve_furber/

“The development board plugged the chip into had a fault: there was no current being sent down the power supply lines at all. The processor was actually running on leakage from the logic circuits. So the low-power big thing that the ARM is most valued for today, the reason that it's on all your mobile phones, was a complete accident."

Just need an equivalent one from Intel, saying that they were originally trying to make a fan heater.

Paul





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