[Arm-netbook] AMD 2W APU

[Jean-Luc Aufranc]

On Wednesday, November 20, 2013 05:10 PM, joem wrote:
> On Wed, 2013-11-20 at 16:44 +0700, Jean-Luc Aufranc wrote:
>> On Wednesday, November 20, 2013 04:12 PM, Hrvoje Lasic wrote:
>>
>>>
>>>
>>> On Wed, Nov 20, 2013 at 10:08 AM, luke.leighton
>>> <luke.leighton at gmail.com> wrote:
>>>          On Wed, Nov 20, 2013 at 8:54 AM, joem
>>>          <joem at martindale-electric.co.uk> wrote:
>>>          > On Tue, 2013-11-19 at 19:43 +0000, luke.leighton wrote:
>>>          >>
>>>          http://www.amd.com/us/press-releases/Pages/amd-2014-mobile-apu-2013nov13.aspx
>>>          >>
>>>          >> at laaaast.
>>>          >
>>>          > Read carefully?  It doesn't say 2W - it sez 2x
>>>          performance.
>>>          
>>>          
>>>           roadmap document, page 4.
>>>          
>>>          
>>> “Mullins ” APU
>>> 2-4 “Puma” CPU Cores
>>> GCN Graphics Compute Units
>>> AMD Security Processor
>>> ~2W SDP
>> For the ultra low power, APU they use SDP (Scenario Design Power),
>> whereas for the other processors, they don't mention anything, so I'd
>> guess they use TDP (Thermal Design Power).
>>
>> Anandtech says SDP is ~2W, but TDP is 4.5W for AMD Mullins APU.
>> http://www.anandtech.com/show/7514/amd-2014-mobile-apu-update-beema-and-mullins
>>
>> I'm not sure how this can be compared to ARM SoC power consumption, as
>> they may use a different metric.
>
> The entire EOMA68-A20 dual core with RAM and ethernet working is about
> 0.3A @ 5V or about 1.5W. A third less if its idling.
>
>
Thanks. But Is it possible to estimate the power consumption of 
EOMA68-Mullins based on SDP or TDP for the same tasks? I understand 
manufacturers use SDP / TDP to provide adequate cooling solutions for 
x86 systems. So I'd assume the CPU power consumption would be less than 
4.5W or even 2W, but we would still need to add the power consumption of 
other components (e.g. RAM), to get an idea.