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    xps m1330 8400m gs shared memory?

    Discussion in 'Dell XPS and Studio XPS' started by xboxgon, Jul 23, 2008.

  1. xboxgon

    xboxgon Notebook Guru

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    How much is the total memory that the gpu is gonna use? i have vista x64 installed and i looked into dxdiag, and it says the 8400m gs that i have has 1900mb :confused: is this normal?
     
    xboxgon, Jul 23, 2008
    #1
  2. basskiddanny

    basskiddanny Notebook Evangelist

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    I think you can allow it to share some system memory but its not worth it. I think the 1900mb readout can't be right.
     
    basskiddanny, Jul 23, 2008
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  3. xboxgon

    xboxgon Notebook Guru

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    xboxgon, Jul 23, 2008
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  4. MexicanSnake

    MexicanSnake I'm back!

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    Run some kind of gpu test, like 3dmark06 to see what is going on.
     
    MexicanSnake, Jul 23, 2008
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  5. flipfire

    flipfire Moderately Boss

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    No, what that means is turbocache can dynamically use up to 1.9gb of your system memory (which is never gonna happen anyway)

    Keep in mind turbocache only comes alive when youve run out of dedicated memory. Which is never for normal day to day uses.
     
    flipfire, Jul 23, 2008
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  6. 7oby

    7oby Notebook Evangelist

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    7oby, Jul 24, 2008
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  7. xboxgon

    xboxgon Notebook Guru

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    omg, mhmmm i checked all those stuff and it really is reporting that the graphics that is shared is 1904mb >_> is anyone else doing this on their m1330
    ?
     
    xboxgon, Jul 24, 2008
    #7
  8. 7oby

    7oby Notebook Evangelist

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    You didn't check anything. Please reread flipfire's posting:

    The 1,9GB are NOT used and NOT allocated until they are REQUIRED, which is: NEVER! This applies to Vista. XP handles TurboCache differently. The 1,9GB are not lost to the GPU - they are even NOT reserved in that sense. It's just that: IF the application would require THAT amount of video memory, it WOULD be given to it. But if the graphics system would report a smaller number the application might reject to work, since it requires a graphics card with more memory.

    The long answer is:

    SharedSystemMemory = MIN(MIN(SumOfCommitLimitOnAllApertureSegment, DXGK_DRIVERCAPS.ApertureSegmentCommitLimit), MAX((TotalSystemMemory - 512) / 2), 64MB))
     
    7oby, Jul 24, 2008
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  9. xboxgon

    xboxgon Notebook Guru

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    ahhh thanks
     
    xboxgon, Jul 24, 2008
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  10. ash_bd

    ash_bd Notebook Geek

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    Can you please explain how?
     
    ash_bd, Jul 24, 2008
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  11. 7oby

    7oby Notebook Evangelist

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    7oby, Jul 24, 2008
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