Amd 450/460 Temperatures

Discussion in 'MacBook Pro' started by fokmik, Nov 16, 2016.

  1. fokmik macrumors 68000

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    Oct 28, 2016
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    USA
    #1
    So since is a major indicator for longevity of our MBP...how are your temperatures under stress for dGPU?
    Say your dGPU model and max tmp
    For me 450 here it didnt reach 80C it stood around 70-74C
     
  2. Qwe9203 macrumors member

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    Nov 18, 2014
    #2
    There is already some failures in another thread. When does Apple learn they can't do dGPUs.
     
  3. Heirborn391 macrumors newbie

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    Jul 11, 2008
    #3
    During the Unigine Heaven & Valley benchmarks, my 460 peaked at 82C, then stabilized around 70-72C.
     
  4. fokmik thread starter macrumors 68000

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    Oct 28, 2016
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    USA
    #4
    i think below 80C is safe to say that its ok.
     
  5. Macintosh IIcx macrumors 6502

    Macintosh IIcx

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    Denmark
    #5
    That is a good sign! :)
     
  6. CasablancaDR macrumors member

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    Nov 27, 2014
    Location:
    Paris, France
    #6
    Below 90°C, the GPU is safe. 72°C stabilized in Unigine Heaven is very good news.

    In comparaison, the 295x of my 5K iMac is almost all the time around 80°C and at full load can reach 105°C which is bad.
     
  7. Queen6 macrumors 603

    Queen6

    Joined:
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    #7
    The classic failure mechanism of the MBP`s dGPU is related to thermal shock, as Apple in general opts to run consumer grade components as close to their upper limit as possible. This in general takes several years to rise it`s head resulting in premature failure of the dGPU. As for the longevity of the 2016`s dGPU we will see in time. The only real early indicator is operating temperatures; if Apple`s 2016 design can keep the dGPU below 80C - 85C under load it will be a good indication that Apple is looking to improve reliability.

    This case is more likely to related to a production error, one of the risks of being an early adopter; new hardware, new processes, new assembly technicians etc. one of the risks of being an early adopter with Apple.

    Q-6
    --- Post Merged, Nov 17, 2016 ---
    This is a good number for consumer electronics, and hopefully a sign of Apple finally getting the mix right.

    Q-6
     
  8. h9826790 macrumors 604

    h9826790

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    Apr 3, 2014
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    Hong Kong
    #8
    That sounds still a bit warm, but sure won't kill the GPU, and it's far better than the 105C iMac dGPU.
     
  9. Macintosh IIcx macrumors 6502

    Macintosh IIcx

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    #9
    :eek::eek::eek:

    I know the GPU is designed to survive 105°C, but that would just freak me out!
     
  10. fokmik thread starter macrumors 68000

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    USA
    #10
    anyone else with 450 or 455 on this forum to check the temperatures ?
     
  11. dotdotdot macrumors 68020

    Joined:
    Jan 23, 2005
    #11
    My 460 built Feb 2017 reaches up to 86 degrees. I feel like my previous models never went above 82. It hovers around 79 after the 86 peak.
     

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