13" vs 15" fans

Discussion in 'MacBook Pro' started by Nipz, Aug 27, 2010.

  1. Nipz macrumors 65816

    Nipz

    Joined:
    Nov 1, 2006
    Location:
    UK
    #1
    So me and my brother play SC2. I have a 15inch MBP with the i7 and he has the top spec 13inch MBP.

    However when were playing together after about 10 mins my fans kick in and my laptop get almost untouchably hot. But his 13inch MBP stays warm and no real fans!

    Can someone explain why this is?

    Thanks

    Ben
     
  2. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #2
    13" has a integrated GPU which is weak, so has low power draw (producing less heat); the 15" has a dedicated GPU has runs out, but is more powerful (but it also produces a lot more heat).
     
  3. Nipz thread starter macrumors 65816

    Nipz

    Joined:
    Nov 1, 2006
    Location:
    UK
  4. miles01110 macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
    #4
    The 15" MBPs also have two fans, whereas the 13" only has one.
     
  5. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #5
    Well your 15" also has an integrated GPU, but when you're gaming the computer switches to the dedicated GPU. The integrated GPU on the 15" is a lot weaker than the one on the 13", so don't try to use it ;)
     
  6. MikeinJapan macrumors regular

    Joined:
    Apr 23, 2010
    Location:
    Tokyo
    #6
    Sounds like the i7 is going into turbo mode too.
     
  7. Nipz thread starter macrumors 65816

    Nipz

    Joined:
    Nov 1, 2006
    Location:
    UK
  8. mulo macrumors 68020

    mulo

    Joined:
    Aug 22, 2010
    Location:
    Behind you
    #8
    the 17" has even bigger fans, and their maglev (0 friction)
     

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