Macbook Pro 16 Very Slow Performance with OLED TV 55

Discussion in 'Apple and Mac OS X' started by syngress, Dec 31, 2020.

  1. syngress

    syngress Notebook Enthusiast

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    I try to experiment with external GPU (GTX1080TI on some EGPU Case) with MacbookPro16, maybe I can get 120Hz from my 55OLED Panel.

    I have AMD Radeon Pro 5500M on board, and if I read correctly on the net, I am limited by the OSX system to 60Hz on this external GPU ..
     
    Last edited: Jan 15, 2021
  2. saturnotaku

    saturnotaku Notebook Nobel Laureate

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    There is no NVIDIA driver support for macOS - you would need an AMD GPU.
     
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  3. syngress

    syngress Notebook Enthusiast

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    For BigSur ? What about Catalina ?
     
  4. saturnotaku

    saturnotaku Notebook Nobel Laureate

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    Nope. NVIDIA and Apple haven't been on speaking terms since around 2013.
     
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  5. syngress

    syngress Notebook Enthusiast

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    That's too bad, what can I get form AMD (cheapest GPU option) with 120Hz support ?
     
  6. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    so this PWM means those vertical lines that appear on the screen when you film it with a camera but the human eye can't see? that's what's bad and what bothers you on the long run?
     
  7. Aivxtla

    Aivxtla Notebook Evangelist

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    Kepler was the last officially supported nvidia GPU series.

    Some people got the Geforce 10XX series to work in Catalina via workarounds but not sure how well it performs or if it's worth the effort.
     
    Last edited: Jan 15, 2021
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  8. Aivxtla

    Aivxtla Notebook Evangelist

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    No it’s basically flashing the screen on/off as a means of brightness control. Lower the brightness, the lower the flashing rate. Higher the brightness higher the flashing rate.

    Some people are very sensitive to low PWM levels as one previous poster mentioned. Can have it on LCDs as well.

    Much better explanation here:
    https://www.notebookcheck.net/Why-Pulse-Width-Modulation-PWM-is-such-a-headache.270240.0.html
     
    Last edited: Jan 15, 2021
  9. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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    No, those "lines" you see when sometimes recording a screen with a camera is from mismatch between panel refresh rate and camera capture frame rate. if they are out of sync, you will see those lines (like using a camera capturing at 30fps to a 60hz display)

    PWM is pulse width modulation, and is one way to control backlight by rapidly cycling it on/off. At high frequency, it is not a problem to me, as the human eye can only register so many Hz. However if the frequency is low, like example some OLED panels use 55-58Hz to modulate, the eye can detect that flicker of on/off and it can strain over time.
     
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  10. saturnotaku

    saturnotaku Notebook Nobel Laureate

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    I'd look for a used RX 570 or 580. If you're lucky, you may be able to find the former for under $100.
     
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