Secondary GPU

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  • ktulo37
    Blossoming 3Dflower
    • Jun 2021
    • 2

    Secondary GPU

    I have a Radeon RX 5700 currently in my PC-- great card, useless with 3d Zephyr. Long story short, I don't want to replace my Radeon, but I don't mind spending money on an inexpensive NVidia to assist with the rendering. Will Zephyr use the secondary card without issue? If so, will adding a GeForce GT 1030 to my PC make a large enough difference in the rendering time to be worth installing?
  • cam3d
    3Dflover
    • Sep 2017
    • 661

    #2
    Hi ktulo37 - Welcome to the forum!

    Adding a CUDA based GPU will almost certainly improve your processing times, however a card like the 1030 GT is fairly weak and may or may not be worth it, depending on your use case.

    If you install a secondary NVIDIA GPU next to your AMD GPU I believe that Zephyr should still be able to use it, but I'll ping Andrea just in case because I'm not 100% sure.

    Comment

    • ktulo37
      Blossoming 3Dflower
      • Jun 2021
      • 2

      #3
      I got my GT 1030 today to try this out. Worst case, the 1030 will go into one of my kids' PCs. This proves that a secondary GPU will improve processing since my primary is an AMD.

      Without Nvidia GT1030 With Nvidia GT 1030
      --- System info ---
      Application
      Version 6.004
      No Cuda GPU Found
      CPU
      Type AMD Ryzen 5 2600 Six-Core Processor
      Number of Cores 12
      RAM
      Total 16312 Mb
      Disk
      Disk drive: C:
      Available disk space 471788 Mb
      Total disk space 953110 Mb
      Solid state disk Yes


      --- Benchmark Results ---
      SfM running times: 246 seconds
      MVS running times: 356 seconds
      Mesh running times: 274 seconds
      Texture running times: 77 seconds
      Overall running times: 15 minutes and 53 seconds
      --- System info ---
      Application
      Version 6.004
      GPU #1
      Type NVIDIA GeForce GT 1030
      Memory 2048 Mb
      Clock 1518500 Khz
      Processors 3
      CPU
      Type AMD Ryzen 5 2600 Six-Core Processor
      Number of Cores 12
      RAM
      Total 16312 Mb
      Disk
      Disk drive: C:
      Available disk space 467338 Mb
      Total disk space 953110 Mb
      Solid state disk Yes


      --- Benchmark Results ---
      SfM running times: 137 seconds
      MVS running times: 398 seconds
      Mesh running times: 129 seconds
      Texture running times: 84 seconds
      Overall running times: 12 minutes and 28 seconds

      Basically, it ignored my primary GPU. Overall, improvement. I would have appreciated on a 5+ hour render I had the other day. I wouldn't say it was worth buying the card though.

      Hope this is helpful for other folks!

      Comment

      • Andrea Alessi
        3Dflow Staff
        • Oct 2013
        • 1304

        #4
        Unfortunatley the GT1030 is a very cheap and low performance card - the current shortage of GPUs has inflated prices a lot.

        Zephyr can use multiple GPUs of differnt types, as long as they are NVIDIA. So indeed you can mix different GPUs together and it iwll automatically use the first NVIDIA card that it finds, in your case , the 1030.

        Comment

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