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M
Markus265563410yjk
Participant
May 9, 2023
Question

GPU Benchmark Denoise AI

Hello, do you have any GPU speed benchmarks for denoising? Does Lightroom also support AMD graphics cards in the calculation or only Nvidia? I'm particularly interested in the Radeon 7900 XT. I'm not entirely satisfied with the RTX 4070.
Best regards, Mark

    12 commentaires

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    dj_paige
    dj_paige
    Legend
    May 9, 2023

    May I ask what about the RTX 4070 causes you to be "not entirely satisfied"?

      M
      Markus265563410yjkAuteur
      Participant
      May 9, 2023

      Ki-Denoise:

      24 Megapixel... 6seconds

      36 Megapixel... 9seconds

       

      If I develop maybe 50 DNG ki denoised pictures with some additional masks and adaptive presets, lightroom is a little bit slow while zooming in for maybe further individual retouching. Its getting slower while editing from picture to picture. After DNG evaluation I have also generated smart views and 1:1 views at first before all editing.

       

      I think about editing wedding series with 2000-3000 pictures and that's maybe a problem.

       

      I am using an i9 9900X, 128gb ddr4 2666 MHz, Samsung Nvme.

       

      Maybe the rtx 4070 has to less ram with 12gb?

      D Fosse
      Community Expert
      D FosseCommunity Expert
      Community Expert
      May 9, 2023

      That's about as good as it gets. There's no reason to think it will improve significantly with a different GPU.

       

      This is an extremely compute-intensive operation. There's no way this will ever be "instant" with the hardware available today, if that's what you expect.

       

      It's a bit tricky to directly compare because people have different cameras with different resolution, and this is directly proportional to megapixel count. 24 MP will be twice as fast as 48 MP.

       

      I use a 60 MP camera, and with my fairly modest RTX 3060 it finishes in 33 seconds. So, mostly out of curiosity, I sent a file to a friend with an RTX 3090, and that finished in 13 seconds. So definitely a difference - but the point is, it takes a little time. You have to accept that.

       

      Aside from that, there really is no reason to run Denoise on all your files. On normal low ISO photos, noise is simply not a problem, and standard noise reduction is more than enough to deal with it.

       

      Denoise is for those shots taken under particularly difficult conditions, where you may have to push ISO to 5000 or more. That's when Denoise is starting to make sense, and in those circumstances, it's extremely effective.

        Keith Reeder
        Keith Reeder
        Participating Frequently
        May 9, 2023

        I use a Radeon RX580 8gb, and it's fine - not super-fast, but fast enough.

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