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

    Apr 19, 2010
    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?

  2. GGJstudios macrumors Westmere


    May 16, 2008
    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

    Aug 7, 2011
    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

    Apr 19, 2010
    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


    Nov 12, 2010
    Los Angeles
    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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