Messages Requires High Perf GPU

Discussion in 'macOS Sierra (10.12)' started by hsouris, Oct 14, 2016.

  1. hsouris macrumors member

    Mar 21, 2011
    Messages is listed in Activity Monitor as requiring the discrete graphics card, and indeed with gfxcardstatus I can confirm that whenever I open Messages it triggers the NVIDIA card.

    Any idea why this is happening? I can't remember if I had this issue prior to Sierra.
  2. Daniel L macrumors 6502

    Sep 15, 2009
    I'm having the same issue on a 2012 rMBP. It's intermittent though but definitely caused by Messages. Choosing a chat box that doesn't have an image loaded, closing the app, and restarting it prevents the dGPU from being used until you open a message that has an image.
  3. X3n0n macrumors member


    Jul 24, 2016
    It's because of the new effects in iOS 10, macOS can receive them and show them.
    It then kicks in the dedicated GPU.

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