HD4000 VRAM allocation? Same as HD3000?

Discussion in 'MacBook Air' started by Adamantoise, Jun 18, 2012.

  1. Adamantoise macrumors 6502a

    Aug 1, 2011
    With HD3000 graphics, 8GB of RAM got you 512MB of VRAM, 4GB of RAM got you 384MB of VRAM

    Is this the same case with the HD4000? Can someone with a 2012 MBA or MBP confirm?

  2. Ounce macrumors member

    Jun 26, 2011
    Louisville, KY
    My 2012 MBA has 8 GB of RAM and 512 MB of VRAM.
  3. dukebound85 macrumors P6


    Jul 17, 2005
    5045 feet above sea level
    16 gigs of ram also keeps it at 512mb with the hd4000
  4. vcuares macrumors member

    Oct 30, 2008
  5. acastic macrumors regular

    Jan 6, 2004
    11 inch with 8GB has 512MB allocated under OS X.
  6. anton1s macrumors member


    Jun 17, 2012
    My 2012 MBA has 8 GB of RAM and 512 MB of VRAM as well
  7. riley41090 macrumors member

    Jun 13, 2012
    will this extra VRAM boost with 8gb help video playback? i'm not sure if its my slow internet or the graphics card but when watching videos on youtube (flash or HTML5) i often get some lag with the image though the sound continues, i have to pause for it to catch up before playing again, its mainly only a problem when the video hasn't buffered much ahead of where i am watching.
  8. leman macrumors 604

    Oct 14, 2008
    Its most surely the internet. And no, more VRAM will not help with video decoding.
  9. riley41090 macrumors member

    Jun 13, 2012
    thanks! sorry for the stupid question :eek:

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