MBP i7 vs i5 vs c2d battery life and heat

Discussion in 'MacBook Pro' started by tim100, Jul 31, 2010.

  1. tim100 macrumors 65816

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    May 25, 2009
    #1
    does the 17 run cooler than the 15? how about i5 vs i7 for heat?
     
  2. snaky69 macrumors 603

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    Mar 14, 2008
    #2
    I think there would be little to no difference, not that it actually matters.
     
  3. tim100 thread starter macrumors 65816

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    May 25, 2009
    #3
    i think it is important to understand the difference between the macbook lines re heat and battery life. those factors are more important to me than speed for what i do.
     
  4. Cptow macrumors newbie

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    Jul 15, 2010
  5. C64 macrumors 65816

    C64

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    Sep 3, 2008
    #5
    The 17" has more space for cooling, so it'll be a bit cooler.
    The i7 will run a bit more hot than the i5, so the i5 will be a bit cooler.

    Important to note: this is only when you're stressing all the cores. Most of the time 2-3 or your cores will be completely asleep doing nothing, and your MacBook will be cool and dead silent, regardless of the size/CPU. Bottom line: don't worry and buy what you need.
     
  6. kgeier82 macrumors 65816

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    Feb 18, 2008
    #6
    I would say this is pretty accurate, but not 100%. Both i7, i5's have a 35w tdp, and while the i7 should operate at a higher Turbo Boost clock, neither stays there very long.

    Out of the 5-10 machines Ive seen of each, there was no correlation between heat and i7, or a cooler i5.

    Oh and, only 2 cores for each chip :)
     
  7. Cptow macrumors newbie

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    Jul 15, 2010
    #7
    Thought quad core?
     
  8. mark28 macrumors 68000

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    Jan 29, 2010
  9. tim100 thread starter macrumors 65816

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    May 25, 2009
    #9
  10. Tmacfan4321 macrumors regular

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    #10
    The i7-620m is a dual core chip. Quad cores have much lower clock speeds.
     
  11. mark28 macrumors 68000

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    Jan 29, 2010
    #11
    I think it's due to the bigger screen that the 2010 13 MBP is so good with battery life. ( and maybe the dedicated GPU doesn't use 0 Watts when it is not activated )

    The i5 beats the 2009 15 inch C2D MBP in battery life :p
     
  12. Meever macrumors 6502a

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    Jun 30, 2009
    #12

    They also run hot enough to roast a steak on.

    ...But also smacks around all dual cores on multi core threaded programs and benchmarks.
     
  13. tim100 thread starter macrumors 65816

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    May 25, 2009
    #13
    no doubt, i5 gets pretty good battery life.
     
  14. tim100 thread starter macrumors 65816

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    May 25, 2009
    #14
    anyone pick i5 over i7 for better battery life?
     

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