The new Retina iMac is surprisingly power efficient.

Discussion in 'iMac' started by WilliamG, Oct 16, 2014.

  1. WilliamG macrumors G3

    Joined:
    Mar 29, 2008
    Location:
    Seattle
    #1
    These are just preliminary results from searching, but it looks like idling performance with the display on is improved from the 2012 and 2013 27" iMacs! Makes you wonder why the battery life wasn't better with the screen on with iPhone 6 Plus...


    Power Consumption for 27-inch iMac (2012)
    Mode
    Off
    Idle—Display off / on
    100V 0.22W / 20.5W / 79.9W
    115V 0.22W 20.6W / 79.8W
    230V 0.22W / 20.9W / 78.9W

    Power Consumption for 27-inch iMac (2013)
    Mode 100V 115V
    Off 0.24W 0.24W
    Sleep 0.98W 0.94W
    Idle—Display on 78.2W 79.1W
    230V 0.24W 0.96W 77.0W

    Power Consumption for 27-inch iMac with Retina 5K display (2014)
    Mode
    Off
    Sleep
    Idle—Display on
    100V 0.26W / 1.18W / 70.4W
    115V 0.24W / 1.11W / 70.4W
    230V 0.28W / 1.16W / 69.5W

    Results from here:

    2012: http://www.apple.com/environment/reports/docs/imac_27inch_oct2012.pdf

    2013: http://images.apple.com/environment/reports/docs/27inch_iMac_PER_oct2014.pdf

    2014: http://images.apple.com/environment/reports/docs/27inch_iMacRetina5K_PER_oct2014.pdf
     
  2. colodane macrumors 6502a

    colodane

    Joined:
    Nov 11, 2012
    Location:
    Colorado
    #2
    Thanks, William

    Excellent (and somewhat surprising) info. I had a concern about power consumption with the higher resolution displays, but perhaps I had no reason to worry.
     
  3. Georgio macrumors 6502

    Georgio

    Joined:
    Apr 30, 2008
    Location:
    Essex, UK
    #3
    Difficult to tell until people actually start using them, but I suspect we're going back to the 'egg-frier' iMacs pre 2012 with that GPU, especially the 295 flavour.
     

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