How much ram does the 9400M take ?

Discussion in 'iMac' started by bontempi, Jul 15, 2009.

  1. bontempi macrumors member

    Joined:
    May 14, 2008
    #1
    hello

    just bought a new 24" iMac 2.66 ghz - 4 gigs of RAM - 640 go HD

    it has the 9400M graphic chip.

    i will use this computer mainly for Logic Pro. i use "spaces" (one space for safari / mail, one space for Logic)

    how much RAM will the 9400M use ?

    thanks
     
  2. bontempi thread starter macrumors member

    Joined:
    May 14, 2008
    #4
    does it takes 256 mb all the time, or does it change depending on the use ?

    thanks
     
  3. Krafty macrumors 601

    Krafty

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  4. MacMini2009 macrumors 68000

    MacMini2009

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    California
    #6
    Well if you have 1GB of RAM, the video memory will go down to 128MB.
     
  5. geoffreak macrumors 68020

    geoffreak

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    Feb 8, 2008
    #7
    Aren't the 128MB model and the 256MB models two different Mac Minis?
     
  6. Krafty macrumors 601

    Krafty

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    #8
    No, the other Mac Mini has 2GB RAM installed.
     
  7. mrj412 macrumors regular

    Joined:
    May 27, 2009
    #9
    Not quite - It is determined by the amount of ram as others have mentioned:

    128Mb if there is 1Gb or less, 256Mb is there is more than 1Gb.

    This is set at boot and OSX will not be able to use the ram allocated for video memory.
     
  8. geoffreak macrumors 68020

    geoffreak

    Joined:
    Feb 8, 2008
    #10
    Then why is it that you can BTO the lower end model with the same specs as the higher end model and have it be $20 less in price when in the education store? There is absolutely something wrong in the logic here.
     
  9. MacMini2009 macrumors 68000

    MacMini2009

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    #11
    Apple should have put the 2.26GHz processor in the high-end model.
     
  10. Heilage macrumors 68030

    Heilage

    Joined:
    May 1, 2009
    #12
    Yes they should have. Right now the high-end Mac Mini is just a waste of money for a guy like me who doesn't need internal storage space (4TB file server and 3x redundancy backups of all important data). Gladly, I can buy the ultimate low end and shove some RAM and SSD in it. :)
     
  11. 300D macrumors 65816

    300D

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    #13
    Its only one click of an option tab away.
     
  12. fhall1 macrumors 68040

    fhall1

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    #14
    Note that the OP is talking about an iMac, not a Mini - although I think the 256M max number (with >= 2G RAM) still holds.
     
  13. Heilage macrumors 68030

    Heilage

    Joined:
    May 1, 2009
    #15
    Yes, it's the same principle. With 1GB RAM, the shared memory of the 9400M chip is 128MB. With 2GB RAM, this is upped to 256MB, which is also the max amount, so there is no gain when it comes ot the graphics on over 2GB RAM either, although I'd recommed anyone to go for 4GB right away, especially when it's so cheap. :)
     
  14. Krafty macrumors 601

    Krafty

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    #16
    I meant it doesnt use 128MB all the time, as he was wondering.

    Ask Apple.
     
  15. zmttoxics macrumors 65816

    zmttoxics

    Joined:
    May 20, 2008
    #17
    Shared memory. It will use more as it becomes required up to a maximum of 256MB.
     

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