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mikem87557378
mikem87557378
Inspiring
February 23, 2018
Question

iMac Pro slow performance

  • February 23, 2018
  • 22 replies
  • 43189 views

I just bought a new 2017 iMac Pro, 3ghz 10core processor, 64 gb ram, 16 gb GPU. I set the new iMac Pro up next to my 2014 5K iMac 4 ghz quad processor, 32 gb RAM, 2 gb GPU and they literally had the same exactly playback with RAM preview. The iMac pro could not even play full resolution playback. Both set to 1/3 and they both stuttered in the same places. So I'm just wondering did I waste $7,000. My projects are mostly animations with characters from high res photoshop files. Please help! Thank you!!!

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    martinl96064850
    martinl96064850
    Participant
    February 23, 2018

    Same experience here. iMac Pro 10-core / 64GB RAM. It's performing about the same as a 2016 Mac Pro w/ 16 GB of RAM.

    + a new quirk where sometimes transparent PNG's can't be shown at all – they become a garbled glitchy pattern of random colors (?)

    What's going on? Are the Radeon Pro Vega drivers not finished yet or something?

      mikem87557378
      mikem87557378Author
      Inspiring
      February 23, 2018

      From what I understand GPU drivers are included in Mac software updates. I checked the website for Radeon Pro Vega and the drivers are for windows and Linux. I just do not understand how these two machines are performing absolutely the same, while the iMac Pro is superior in every spec. Going from the iMac 2014 to iMac pro, I also went from fusion drive to SSD, read and write speeds are double, yet I see no difference in performance. Is there just a limit to how fast Premiere Pro and After Effects can run? So I can never expect to have smooth playback, no matter how powerful the machine? Ugh. One thing I did notice is when I switch GPU acceleration to OpenCL from Metal, exporting is way faster, but does nothing for playback.

      Someone better call Apple and tell them not to make any new computers, because I guess 2014 iMac works as fast as iMac pro. Adobe is industry standard, and most creatives use it in some capacity. I just don't understand, Pro software should work better on pro machines.

      T
      tobiasw10386361
      Participant
      February 23, 2018

      I'm having the exact same problem, I have a Mac Pro 3.5Ghz 6 Core with 64Gb of RAM.  In both Premiere and After Effects, my playback is so slow I can't even perform basic edits.  This has to be some setting I'm missing or some glaring issue, both programs are unusable.

        mikem87557378
        mikem87557378Author
        Inspiring
        February 23, 2018

        Its really disappointing. From my research I guess adobe apps currently favor faster processors, over multiple cores. So in my case I may have made a $7000 downgrade from a 4ghz processor to a 3ghz. I'm really hoping someone from Adobe answers and we can figure this out.

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