Windows Why is my Macbook Retina graphic card running below 900mhz

Discussion in 'Mac and PC Games' started by Mapringg, May 13, 2013.

  1. Mapringg, May 13, 2013
    Last edited: May 15, 2013

    macrumors newbie

    Joined:
    Sep 30, 2012
    #1
    I have tried tons of different way to get the speed back up. I am very fustrated with this. I bought this laptop at a very premium price for a laptop but my graphic card could never exceed it speed of 700-800
    Why is this
    I just did a clean install of windows 8 and the promblem still persist
    Are you guys getting 900mhz when playing game
    I need your help
    Bootcamp *
    Thank you
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    What software do you use then to let you see the GPU MHZ?
     
  3. macrumors 68040

    cluthz

    Joined:
    Jun 15, 2004
    Location:
    Norway
    #3
    The GT650M reference speed is from 735-900MHz.
    Due to the kepler architecture you usually get dynamic clocks, going up and down after power available.
     
  4. thread starter macrumors newbie

    Joined:
    Sep 30, 2012
    #4
    I am using gpu-z to look at my gpu speed
    I have never been able to get 900mhz at all
    the highest I have seen is 794mhz
     
  5. macrumors 68020

    edddeduck

    Joined:
    Mar 26, 2004
    #5
    If you think you have issues many people say they are fixed by reseting the SMC.

    Edwin
     
  6. thread starter macrumors newbie

    Joined:
    Sep 30, 2012
    #6
    resetting smc did help however as soon as my temp hot anything above 80 the speed drop and never go above 794 until I do another smc reset
    is this a problem everyone is experiencing :confused:
     
  7. macrumors 604

    thejadedmonkey

    Joined:
    May 28, 2005
    Location:
    Pa
    #7
    Pretty much. This is why you never buy a first generation Apple product.
     
  8. macrumors 68020

    edddeduck

    Joined:
    Mar 26, 2004
    #8
    I think you don't need to include the word Apple in that sentence :) any first generation product is liable to problems.

    Sony Playstation 3 - initial version had excess power usage and heat
    XBox 360 - Red ring of death was almost expected for first few years
    Windows 8 - Nuff said really
    Android - First few OS versions were almost unusable.

    1.0 of any new hardware/software product will almost always not be as good as the following products in the same line.

    Edwin
     
  9. macrumors 68040

    cluthz

    Joined:
    Jun 15, 2004
    Location:
    Norway
    #9
    To be honest, you only need 725MHz to reach the reference specs by NVidia.
    Anything above 725MHz is considered bonus :) Apple do never advertise the speed on the GPU, so 794MHz is considered a good clock on a 650M, even tho some users get 900MHz.
     
  10. macrumors 65816

    Joined:
    Dec 2, 2010
    Location:
    Germany
    #10
    Download nVidia System tools and then overclock the 650m with that to what you like.
    Ive been using it to overclock the 330m in my 2010 15" by 20% for years now. Long gaming sessions and no problems.
     
  11. adder7712, May 17, 2013
    Last edited: May 17, 2013

    macrumors 68000

    adder7712

    Joined:
    Mar 9, 2009
    Location:
    Anywhere
    #11
    My HD 7950 runs at 910 MHz, and that was overclocked and stock is 800 MHz.

    I'd say it's normal, look up the stock clock speeds for the rMBP GPU.
     
  12. macrumors 68040

    cluthz

    Joined:
    Jun 15, 2004
    Location:
    Norway
    #12
    You cannot compare like that. The 7950 is a very different card.
    It has several times the cores and a much higher bandwidth (as well as TAUs and ROPs)..

    A 7959 runninng at 200MHz would be faster than a 650M.

    It's like comparing a dual core i3 with a six core i7. A 2Ghz six core will pretty much be faster at much lower speeds. And the i3 is much more like the i7 than a 650M is to a 7950.
     

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