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Andy34619351ungi
Participating Frequently
January 5, 2024
Question

Is CPU graphics used in render

  • January 5, 2024
  • 1 reply
  • 1262 views

I'm looking at upgrade options for my edit workstation. My question is with Premiere set to hardware encoding I know it uses my GPU card. But does Premiere also use the CPU on chip GPU if present as well as the GPU card.

 

The reason I ask is is there any advantage getting a CPU with on chip graphics or is it a waste of money when Premiere only uses the separate GPU card for encoding acceleration.

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    1 reply

    R Neil Haugen
    R Neil Haugen
    Brainiac
    January 5, 2024

    It depends on which hardware acceleration you're referring to. There are two completely different forms.

     

    The first, is GPU accelerated effects, like color corrections, Warp stabilizer, and some other effects. That one is (nearly) totally dependent on the discrete GPU card.

     

    The other, completely different form, is for H.264/5 "long-GOP" decoding/encoding. Which is dependent mostly on the hardware associated with the CPU. Especially as some Intel CPUs have the needed hardware, some don't, and I don't think any AMD CPUs do.

     

    This is affected also (apparently) with some by the accompanying on-board gpu chip.

     

    So ... is it H.264/5 long-GOP you're concerned with, or ... color corrections/Warp and other GPU accelerated effects?

    Everyone's mileage always varies ...
    A
    Andy34619351ungiAuthor
    Participating Frequently
    January 5, 2024

    Thanks for the great reply. I'm more concerned with long GOP 264 export times. This seemed to improve a lot when I upgraded my video card to a GTX1650. Ok it's not top end gear but I am on a limited budget. So that seems to suggest the 264 export was being handled by the GTX1650 rather than the integrated graphics.

     

     

    A
    Andy34619351ungiAuthor
    Participating Frequently
    January 5, 2024

    Your GTX 1650 has an NVENC encoder for both H.264 and HEVC encoding. And in your case, then only the GTX 1650 is used for that encoding job. Remember, on a system with both a discrete GPU installed and the integrated on-CPU graphics enabled, Adobe supports both decoders simultaneously but only the discrete GPU for encoding.


    Ah ok, thanks for clarifying. So it's still worth spending the extra on a quicksync vs of a CPU.

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