Processor Speed and Battery Life on new MBP 15" (2016)

Discussion in 'MacBook Pro' started by DrStangeMac, Nov 6, 2016.

  1. DrStangeMac macrumors newbie

    Nov 6, 2016
    I realize that the new MBP 15" is not in the hands of anyone yet but would appreciate any thoughts on the likely trade off between processor speed and battery life. Specifically, what is the likely impact on battery life from moving from the 2.7GHz to 2.9Ghz i7 in the MBP 15"?

    After spending $3,300 on a 15" MBP 2.7"/1TB/4GB RP460, I thought it made sense to spend the extra $200 for the fastest processor (2.9Ghz). However, I'm trying understand whether the slight speed bump would make a significant difference to the battery life. My assumption is that at low load the battery life would be almost exactly the same. At high load, the 2.9Ghz would drain the battery faster but would complete tasks more quickly, leading to a small but relatively insignificant reduction in battery life.

    Any feedback and suggestions would be much appreciated!
  2. sinoka56 macrumors regular

    Jun 13, 2013
    unless the CPU usage is 100% all the time, it probably won't make a difference
  3. apfelmann macrumors 6502

    Jul 23, 2007
    how can you spend 3000$ on a notebook with 16GB RAM???
  4. idark77 macrumors 6502


    Dec 2, 2014
  5. kingofkings11 macrumors member

    Jun 21, 2016
    I was wondering about the processor upgrade as well but not from a battery perspective but whether or not the speed increase from 2.7 to 2.9 is worth the money? 0.7 to 0.9 seems negligible but I dont know enough about clock speeds to confirm that.
  6. Samuelsan2001 macrumors 604

    Oct 24, 2013
    Because they only need 16gb of ram I'd imagine...
    --- Post Merged, Nov 7, 2016 ---
    CPU clock speeds between the same class of chips have meant very little unless you are maxing out the processor all the time for at least 4years....

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