330m underclocked in mbp?

Discussion in 'MacBook Pro' started by semiotic, Apr 15, 2010.

  1. semiotic macrumors newbie

    Nov 22, 2008
    In anandtechs's review of the i5 2.4 ghz mbp, I noticed that the 330m is seriously underclocked compared to the standard values on notebookcheck:

    clock 575 mhz, memory 1066 mhz, shader 1265 mhz standard guideline
    clock 500 mhz, memory 790 mhz, shader 1100 mhz in the low-end 15 inch mbp.


    looks pretty dramatic. could someone with a 15 inch high end or a 17 inch mbp have a look if the 512 memory 330ms are clocked differently?
  2. maximus06 macrumors regular

    Nov 5, 2007
    1) The Sony Z's 330M is clocked at 475mhz, so 25mhz slower.
    2) You can overclock it in windows using many different tools. Though I wouldn't recommend overdoing it and watching your CPU&GPU temperatures. Maybe only do this while using a stand so that cooling is more efficient.

    I would also be interested to know if the higher-end 15" and 17" are clocked higher, though I doubt it.
  3. maflynn Moderator


    Staff Member

    May 3, 2009
    Apple has a long and illustrious history of underclocking their GPUs. So if I were to hazard a guess, I'd say they are in fact under clocking the puppy.
  4. Wehrwolf macrumors 6502


    May 21, 2009
    the 1066Mhz memory clock seen in the notebookcheck spec sheet refers to DDR3 RAM. The spec for GDDR3 used in the MBPs is 800Mhz, so it's only a 10Mhz underclock, or ~3%. The shader and core are both underclocked by about ~13%
  5. Eddyisgreat macrumors 601

    Oct 24, 2007
  6. waloshin macrumors 68040

    Oct 9, 2008

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