Nvidia 9600MGT 256 vs 512M

Discussion in 'MacBook Pro' started by shadow1, Jul 9, 2009.

  1. shadow1 macrumors member

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    Jul 9, 2009
    #1
    What is the performance difference between the Nvidia 9600M GT 256MB vs the one with 512 MB VRAM. Is is around 15%? Should I purchase the 2.8 Ghz macbook pro because of the differance
     
  2. Cabbit macrumors 68020

    Cabbit

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    #2
    Depending on game at that screen size it is usually 0fps more. Though some games do have larger textures that may benefit but only on a higher resolution screen usually unless the 512MB version has faster ram, or a faster core clock.
     
  3. Bearxor macrumors 6502a

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    #3
    Dont make your purchasing decision on this factor.
     
  4. jav6454 macrumors P6

    jav6454

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    #4
    I've been reading from many sources (nvidia doesn't have this info on its site), but the 9600M GT has an 128-bit memory bus interface. This means 256MB of memory is fine and 512MB is over kill.

    Yes, the card supports up to 1GB of memory, but it won't help stuff out. That extra memory will just sit there and do nothing.


    Edit -
    Linky to nVidia 9600M GT specifications.
     
  5. ViciousShadow21 macrumors 68020

    ViciousShadow21

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    #5
    this is true if the OP is only going to be using his laptop but if they plan on hooking it up to a large external monitor then the extra RAM will make a significant difference regardless of the bus.
     
  6. shadow1 thread starter macrumors member

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    #6
    Thanks, since I am just using as a laptop I will just purchase the 2.66 Ghz as I would be paying AU $3699 for the 2.8 Ghz. So expensive.
     
  7. sporadicMotion macrumors 65816

    sporadicMotion

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    #7
    That is not true as GPU limitations will kick in well before the res limitations kick in. I had the 512 and the 256... there has been absolutely no discernible difference between the two in both games and work. Both were 2.66 MacBook Pro's and the previous one even had more CPU cache on top of the GPU memory.
     
  8. mike1123 macrumors 6502

    mike1123

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    #8
    My opinion: if you're getting the higher-end model (512), it's because of the faster processor with a larger L2 cache and/or a bigger hard drive. That's why I got it, anyway. *shrug*
     
  9. MacAndy74 macrumors 65816

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    #9
    I chose the 9600M GT with 256MB - I decided after talking to a local Apple Reseller who basically told me there was no point in spending extra on the 512MB.
     
  10. scottlinux macrumors 6502a

    scottlinux

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    #10
    With modern video cards, if you happen to use all of the video card ram (only in high end games), it will go and continue to then use your regular system ram as needed.

    There's not really any noticeable performance difference, per say.

    Here is a classic (but somewhat dated) article with good info:

    http://www.pureoverclock.com/review.php?id=33
     
  11. ViciousShadow21 macrumors 68020

    ViciousShadow21

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    #11
    nope sorry, with higher resolutions VRAM makes a difference regardless of the bus.
     
  12. jav6454 macrumors P6

    jav6454

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    #12

    Yes, I forgot to mention in cases when you are powering an external monitor.
     
  13. sporadicMotion macrumors 65816

    sporadicMotion

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    #13
    I'm not talking about pure bus speed. No... it won't. If the GPU was faster there would be a discernable difference however it isn't so at higher res, the GPU's processing limitations will kick in first. Now I'm talking gaming here and intensive GPU processing... if you're referring to something else, then please correct me. As I've said, I had both machines and no matter what, there has no noticeable difference on an external or on the primary display.
     
  14. ViciousShadow21 macrumors 68020

    ViciousShadow21

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    #14
    it depends on how demanding the game is. look at THIS

    but if the game is not demanding then you are right it will not make a difference. but if you are doing 4-16xAA at high resolutions the VRAM will make a big difference.
     
  15. LycanNyc macrumors newbie

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    #15
    same here :)

    I had the 2.4ghz/3mb L2 cache/256mb 9600M GT and it didnt feel powerful enough, so I got the 2.8ghz/6mb L2 cache/512mb 9600M GT but COD4 plays better on the faster core + more gfx ram
     
  16. sporadicMotion macrumors 65816

    sporadicMotion

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    #16
    I did look at that... desktop cards are far more powerful. Still doesn't apply to our notebook cards. If we were talking about our machines big desktop brothers then yes, you are right. Seriously, I've tried this already... I was anal in picking which gen MBP I wanted.
     

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