rMBP Late '13, 1536vram

Discussion in 'MacBook Pro' started by johnitravolta, Oct 14, 2014.

  1. johnitravolta macrumors newbie

    Nov 5, 2009

    I've got the basic model of the late 2013 rMBP 13 inch. with 4GB memory and 128GB storage.

    I would like to know if the memory that is dedicated for the graphics Iris chip is taken out from the 4gigs of ram that I've got.

    If so, it leaves the OS with less memory, isn't it?
  2. Mato-11 macrumors newbie

    Apr 21, 2014
    It will dynamically allocate a part of RAM depending on what you actually doing.For example , when you doing nothing there is only 36MB of your 4GB RAM occupied for the Iris needs.1536 is the maximal value of VRAM that CAN be used for the graphics (games , iMovie...)
  3. johnitravolta thread starter macrumors newbie

    Nov 5, 2009
    Hi, thanks for responding so soon.
    Hmm... lets say I do run a game on it, the game would also need RAM for itself besides the RAM that is occupied by Iris.
    If it is a heavy game, then I guess Iris would use the whole 1536MB so there will be only 2.5gigs of RAM for the OS and the game.

    That's not good, isn't it?
  4. snaky69 macrumors 603

    Mar 14, 2008
    Which is why gaming on an integrated card is never a pleasant experience.
  5. iKrivetko macrumors 6502a

    May 28, 2010
    There aren't many games that would need that much VRAM, and you probably wouldn't want to run them on the Iris anyway.

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