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Lowest Power consumption PC with i5/i3

Discussion in 'General Hardware' started by michael, Aug 11, 2014.

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  1. michael

    michael

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    Hi Guys,

    I have some questions for you, I am constrained to build a lowest power consumption PC as my electricity bills are just eating my money, my i7 3770k machine eating many watt around 88 watts to 109 watts.

    I am very curious to build something less than 40 watts or if not then atleast less than 55 watts. My purpose is to just web surfing where I want to open multiple windows on youtube and say play 1080p videos on multiple tabs, I means my PC should handle that. (I don't play games).

    I initially thought of Intel G2020 which has Max power 55 watts and then I thought of is 3220 which also has same 55 watts.

    And I don't think AMD can come close to it. and yes I am thinking about mini itx motherboard only.

    Please advise.

    Thanks.
     
  2. zsolt_93

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    If you want just that a <10W class 4 core Bay-Trail cpu will suffice most of the time. And you can build a system for 1-2 hundred $. And fire up the i7 one when you need it. If you need more performance, i suggest a NUC as it has a mobile class cpu usuallly 17W peak, not necesarrily the Intel NUC, there are clones on the market from AsRock/Gigabyte and others and is basically a midrange laptop in a desktop form.
     
  3. remixedcat

    remixedcat

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    Looking for one as well for a pfsense box..
     
  4. Mussels

    Mussels Moderprator Staff Member

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    wanna sell me that 3770k? :D


    i've got an i3 system and a power meter, i can measure stuff at the wall if you'd like. intel are definitely lower wattage than AMD for current gen stuff.
     
  5. michael

    michael

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  6. RCoon

    RCoon Gaming Moderator Staff Member

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    I hate to be that guy, but I've used AM1 chips, and they're actually pretty good, and very low TDP. Coupled with an SSD, I saw no problems working on Office 2013 and surfing on Chrome. Video playback was pretty flawless too, tested out a few blurays and the chip handled it just fine.

    If everyone doesn't like AMD, then a bog standard G3220 is what I have for my file server, and my parents also use it to stream blurays to their TV and browse the interwebs. Pretty much any low power processor coupled with a small SSD will be hugely beneficial. Small HDD's are always the limiting factor.
     
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  7. michael

    michael

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    Give example/numbers of AM1 chips please.

    Edited:-

    are these you talking about?
    1.PNG 2.PNG


    Ohh they run on 25 watts...? G2020 need 55 watts as per specifications.......

    Thanks.
     
    Last edited: Aug 11, 2014
  8. zsolt_93

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    For a normal pc to get under 100W is a bit too much. I am speaking of 100W at the wall with the monitor as the OP said. That is why i suggested a low power PC that 36W is the adaptor maximum power, basically a laptop adaptor and you will never reach more then 25-30 with that hardware.
    My best bet would be downclocking your i7 using something like throttlestop to limit max multiplier to 16 when you are not needing the power and put the PC to sleep when you are not there. That would take you to the 80W range i think and you could see how much economy you make. Even 2 old style light bulbs need more power then 100W.
     
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  9. pigulici

    pigulici

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    Why don't you buy a laptop with i7 and ssd?
     
  10. Toothless

    Toothless

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    Could go with an i3, GTX750, and some low-voltage RAM with an SSD for storage. Low-wattage gaming. Take out the GPU for regular video/web surfing.
     
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  11. michael

    michael

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  12. michael

    michael

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    I use lot of lighting at home my ceiling it self contents 12 -> 20 watts bulbs, more over gizer just drinks whole power.
     
  13. michael

    michael

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    No No! I dont need gaming at all, can see above AM1 chips, those runs on just 23Watt ?
     
  14. pigulici

    pigulici

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    My advise,if the bill for light it is a problem, go with a power laptop with I7(not U versions) and ssd, the model from up I find overpriced...
     
  15. Mussels

    Mussels Moderprator Staff Member

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    if you dont need gaming, and all you want is low power - laptops and tablets maybe?
     
  16. Toothless

    Toothless

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    Something like an i5 laptop will be just fine. A teacher of mine had an i5 laptop and it ran pretty well. You can always just hook it up to a tv and use a wireless mouse/keyboard
     
  17. Recca29

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    AM1 platform would be right for you. Try an Athlon 5350 with an Asus AM1MA board.
     
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  18. michael

    michael

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    May this mini itx

    http://www.asus.com/Motherboards/AM1IA/

    dont know why they keep giving those outdated old mouse and keyboard connectors.
     
    Last edited: Aug 11, 2014
  19. RCoon

    RCoon Gaming Moderator Staff Member

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    The AM1 motherboards are very cheap, and the AM1 processors are the Kabini Athlon 5350 and below (5150 etc). Very power efficient, very good for simple low TDP machines. Obviously I'd recommend the 5350 over the rest, it's literally a few pounds more than the others for the top performance.

    KVM use? That's what we tend to need those connectors at work for.
     
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  20. Recca29

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    +1
    5350 is a must.
     
    Last edited: Aug 11, 2014
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  21. Recca29

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    delmar says thanks.
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  22. Final_Fighter

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    have you looked at the intel NUC they might be just the thing


    http://www.intel.com/content/www/us/en/nuc/overview.html

    http://www.anandtech.com/show/7566/intels-haswell-nuc-d54250wyk-ucff-pc-review/6

    if its just for basic use they are decently efficient and kinda cool.

    also decent graphics for what you need if you game use the desktop but for meadia this should be good dont know on price but last i checked you could get the celrons cheap like under $200 cheap

    just found them on newegg

    http://www.newegg.com/Intel-Mini-Booksize-Barebone-PCs/BrandSubCat/ID-1157-309
     
    Last edited: Aug 11, 2014
  23. michael

    michael

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    Ohhh wow what a info!
    Mothetboard with laptop adapter thats great.
    Honestly but while searching i also came across intel chips which takes only 10watts like 2900 which are used in some hp all in one pc dont how much power it consumes though as it is more compact.
     
  24. Mussels

    Mussels Moderprator Staff Member

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    dont forget about undervolting - you can often take 10-30W off most processors at load with that.


    if power was the only factor, you could probably get an android tablet with a dock and keyboard and get a lot done, using the PC when needed for the intensive stuff.
     
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  25. xvi

    xvi

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    I'm always going to recommend ways that don't cost money. First of all, make sure SpeedStep is enabled and working. It will effectively do the undervolting and underclocking for you. Having a high clock speed may not be a bad thing as Intel likes to do a "race to sleep" kind of approach.

    If not that, undervolting would probably be your next measure. Basically make sure you're not spending more power than you need to to have your current clock speed.


    As an alternative way to cut down on power, I'd make sure you have a LED monitor. That should help too.

    It might be worth getting a laptop instead since they're often built to have the best tradeoff between performance and energy efficiency.
    Even as a fan of AMD, I can't deny this.
    +1 for undervolting, +1 for android tablet (although screen size might be an issue)

    Also +1. NUCs should be rather energy efficient.
     
    Last edited: Aug 11, 2014
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