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FYI: 4K Videos take up 1 core @ 22 percent usage on a 4930K CPU

Discussion in 'Processors and motherboards Intel' started by DAW40, May 25, 2018.

  1. DAW40

    DAW40 Master Guru

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    I use speedfan and also core temp. I was watching some videos on youtube that are in 4k. Looks better then the best camera taking a pic. Its flawless so I looked and the video I was watching was taking up a core and a thread 22 percent CPU usage. Weird I would think my GPU would be used, but the GPU temp wasn't going up which means it was using straight CPU power or maybe a bit of video card. But usually when I watch 1080p videos the video card temp goes up10 degrees at least. Just thought I would let everyone know. Thanks
     
  2. JonasBeckman

    JonasBeckman Ancient Guru

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    Depends on the browser doesn't it? Youtube uses a lot of Chrome specific stuff I believe to the point where even using a extension changing it so the user agent identifies as Chrome can give a different experience.

    For Firefox for example there's a about:config setting that has to be changed for VP9 video playback since it mostly only applies to more recent hardware and support in the browser itself might still not be perfect thus a high CPU load.
    (I don't think the 4000 series CPU form Intel had the needed iGPU support either though the 1080 GPU definitively should have AFAIK.)
     
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  3. DAW40

    DAW40 Master Guru

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    I used Firefox latest version 64 bit. Thanks for the scholarly response. thx
     
  4. JonasBeckman

    JonasBeckman Ancient Guru

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    https://www.reddit.com/r/firefox/comments/7d4pop/by_not_enabling_vp9_on_your_firefox_youre/?sort=new

    That should be the config for it. About:Config as a URL and then find media.mediasource.webm.enabled and check if it's set to false, if so flip it to true and compare CPU usage with hardware acceleration enabled for the browser. :)
    A later update to Firefox might see it changed to true by default and it is also possible to visit https://www.youtube.com/html5 and check what it reports the browser supporting for HTML5 video playback.
     
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  5. jaggerwild

    jaggerwild Master Guru

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    Yeah was gonna say, I think this is a settings issue.
     
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  6. DAW40

    DAW40 Master Guru

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    Thanks much Jonas, you rock! wow I put it to true and now its taking pretty much 0 cpu LOL wow, I use chrome too,, but Im a firefox guy,, thx again
     
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