Does running the RMBP at a lower resolution improve battery life?

Discussion in 'MacBook Pro' started by Yinmay, Jun 17, 2012.

  1. Yinmay macrumors regular

    Joined:
    Apr 19, 2010
    #1
    Question for the lucky ones out there who have already received their Retina MBP: does running at 1440*900 instead of 2880*1800 improve battery life? By how much?

    Thanks.
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    I would expect that if it does impact battery life, the impact is negligible. Screen brightness is a much bigger issue. There are many factors that impact your battery life. See the BATTERY LIFE FROM A CHARGE section of the following link for details, including tips on how to maximize your battery life.

    This should answer most, if not all, of your battery questions:
     
  3. funnoam macrumors member

    Joined:
    Aug 7, 2011
    #3
    When running at 2880*1800, the laptop use less power because downscaling is disabled. In 1440*900, the graphics card render the screen at 2880*1800, before downscaling to fit your retina display.
     
  4. Yinmay thread starter macrumors regular

    Joined:
    Apr 19, 2010
    #4
    Thanks a lot. Has anyone been able to run tests and find out how much difference we're talking? something significant like 6h vs 9, or negligible such as 7 vs 7:30?
     
  5. bryne macrumors member

    bryne

    Joined:
    Nov 12, 2010
    Location:
    Los Angeles
    #5
    All the display resolutions on the RMBP are 2x'ed first and then downscaled, which is why the scaling at non-native res looks so good - ie, the 1920x1200 res is actually being output by the video card at 3840x2400. You won't get any power savings from changing the resolution on this laptop.
     

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