[mythtv-users] Lowest power HD frontend?

Kenni Lund kenni at kelu.dk
Wed May 29 08:47:44 UTC 2013


2013/5/28 Jeff Siddall <news at siddall.name>
>
> On 05/28/2013 01:20 PM, Raymond Wagner wrote:
>>
>> On 5/28/2013 1:04 PM, Jeff Siddall wrote:
>>>
>>> On 05/23/2013 09:28 PM, jacek burghardt wrote:
>>>>
>>>> I know there is i3 530 that is like 16 watts
>>>
>>>
>>> Really?  I looked up the i3-530 and it has a TDP of 73 W!
>>>
>>> http://ark.intel.com/products/46472/Intel-Core-i3-530-Processor-4M-Cache-2_93-GHz
>>>
>>>
>>> Also, that's just the CPU.  By comparison the Atom 330 used in the
>>> IONITX stuff has a TDP of 8 W.
>>
>>
>> So?  The Atom330 used in the IONITX stuff basically has no power gating
>> or clocking.  That means regardless of what it's doing, it's going to be
>> running near that 8W usage.  Meanwhile that 73W i3, with around 6x the
>> performance of an Atom330, will rarely, if ever, actually see that kind
>> of usage, and will spend more time idling down around 15W.  My 55W G2120
>> idles at 25W, measured at the wall. That includes the system board,
>> gigabit network controller, two sticks of DDR3, and a PSU that's running
>> so far off its designed output, it's hitting an abysmal 50-60%
>> efficiency.  The CPU itself is probably drawing somewhere around 8W at
>> that point.
>>
>> Low power does not necessitate low performance.
>
>
> Perhaps, but my frontend is in an enclosed cabinet with no cooling.  I need to be certain it will _never_ shoot up past ~25 W or it will turn itself into a radiant heater and I will have an expensive pile of melted plastic left over.  Perhaps my subject line should have been more exact: "Lowest PEAK power HD frontend?"
>
> I just went and measured my IONITX fronted and it idles at 23 W and peaks at 28 W when playing 1080p video.  So, context added, is there any HD frontend out there that never draws more than 28 W?

Intel NUC?

"The 65W power adapter will pull around 10W for the full system at
idle and peak power consumption for the NUC tops out at 19.3W when
running our x264 HD test."

http://www.anandtech.com/show/6444/intels-next-unit-of-computing-hands-on

Best regards
Kenni


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