NVIDIA GeForce 9400M

Discussion in 'MacBook Pro' started by waltervt, May 20, 2012.

  1. waltervt macrumors member

    Joined:
    Jun 24, 2011
    Location:
    Valencia, Spain
    #1
    Hi everybody, I have a stock Macbook Pro 13'' (mid 2009). It has 4GB of RAM and a NVIDIA GeForce 9400M graphics card using 256MB of the RAM.

    I'm gonna upgrade the RAM to 8GB so I was wondering if I can make the graphics card use more than just 256MB.

    Cheers
     
  2. ahdickter macrumors 6502

    Joined:
    Jun 12, 2011
    Location:
    Pittsburgh, Pennsylvania
    #2
    The RAM the GPU uses is called VRAM, and can't be expanded. So upgrading the main RAM won't let the GPU use more than 256MB.
     
  3. snowman1 macrumors regular

    Joined:
    Mar 17, 2010
    #3
    As far as I know, the NVIDIA 9400m cannot expand the amount of memory that it shares with the CPU. Only the Intel HD 3000 can do that.
     
  4. waltervt thread starter macrumors member

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    Jun 24, 2011
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    Valencia, Spain
    #4
    But it DOES take those 256MB from the RAM, right? Because I have 4GB and it shows only 3.75GB available. I think there must be a way, I just don't know how.
     
  5. biohead, May 20, 2012
    Last edited: May 20, 2012

    biohead macrumors 6502

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    Jun 18, 2010
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    West Drayton, UK
    #5
    Yes that 256mb is taken from ram. If you upgrade to 8 gb, you'll have 7.75gb usable instead.

    You can't make the 9400m use more than 256mb in OSX.

    I think in Windows, it uses 512mb.
     
  6. mikeo007 macrumors 65816

    Joined:
    Mar 18, 2010
    #6
    I believe you can under Windows 7, so there may be a way under OSX as well. It's just reserved RAM, there's nothing special about the 256mb that the integrated GPU uses.
     
  7. waltervt thread starter macrumors member

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    Jun 24, 2011
    Location:
    Valencia, Spain
    #7
    That's what I'm saying.
     
  8. biohead macrumors 6502

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    Jun 18, 2010
    Location:
    West Drayton, UK
    #8
    Not under OS X... and with the 9400m being so old now it's unlikely to ever happen as Apple aren't going to plough resources into it.
     

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