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rjmpc
Participant
February 4, 2024
Question

Offload and/or share Camera RAW noise reduction to CPU instead of GPU

  • February 4, 2024
  • 2 replies
  • 173 views

Not all of us have massively high end video cards, especially on laptops and compact desktops.   I run mostly on an i9-12900 16-core 8 thread CPU with Intel m700 128gb integrated graphics and it takes 6 minutes minimum to perform noise reduction on a RAW file.  No matter how I change the settings.  From what I understand this is an inadequate GPU issue.  So basically almost all the CPU cores are sitting idle during NR.   There should be a way to offload the NR to the CPU or share the load with the CPU.   

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    2 replies

    Erik Bloodaxe
    Erik Bloodaxe
    Legend
    February 6, 2024

    I agree with D Fosse.

    I have a workstation PC with Nvidia RTX A5000 GPU which performs Denoise in about 3 sec. yet I hardly ever use it.

    Standard noise reduction is all I need in at least 99% of cases.

      D Fosse
      Community Expert
      D FosseCommunity Expert
      Community Expert
      February 6, 2024

      There isn't. Denoise is coded to run in the GPU and there's no way to get around that. It will run in the GPU regardless of your other GPU settings.

       

      Standard noise reduction is still available as it has always been.

       

      In any case, Denoise is mainly for extreme cases (ISO 5000 and up). For "normal" shots there isn't all that much point in it. Eliminating all noise can't be a goal, that will just look unnatural and "plasticky".

       

      Personally I use it very rarely (I'm a photographer by profession), even though I have a GPU that will do it very quickly.

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