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Daz Studio 6.x (2025), GPU + CPU utilisation

ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 557
edited November 2025 in Daz Studio Discussion

I was monitoring my GPU performance while a scene was rendering, and I note BOTH GPU and CPU are quite heavily use. 

Is this the norm for DS 2025 aka v6.x ?

Or do I need to tweak settings to get the GPU to take more of the heavy-lifting ?

 

 

Post edited by ibr_remote aka infinity10 on

Comments

  • markusmaternmarkusmatern Posts: 605

    Usually when you have a NVidia graphics card in your system the CPU does not really help with rendering. You can switch it off in the Render Settings pane → Hardware

  • Steve KSteve K Posts: 3,467

    markusmatern said:

    Usually when you have a NVidia graphics card in your system the CPU does not really help with rendering. You can switch it off in the Render Settings pane → Hardware

    So that results in faster rendering than with both CPU and GPU working?  Seems countertuitive, although I realize these nVidia GPU's are pretty awesome. 

  • crosswindcrosswind Posts: 9,669

    Steve K said:

    markusmatern said:

    Usually when you have a NVidia graphics card in your system the CPU does not really help with rendering. You can switch it off in the Render Settings pane → Hardware

    So that results in faster rendering than with both CPU and GPU working?  Seems countertuitive, although I realize these nVidia GPU's are pretty awesome. 

    Rendering with both GPU and CPU is faster than using GPU but only not that significantly, depending on how powerfull your CPU is. For instance, I could only see appr. 3~5% time saving with checking GPUs + CPU of my AMD Threadripper 3990x.

  • Richard HaseltineRichard Haseltine Posts: 108,884

    crosswind said:

    Steve K said:

    markusmatern said:

    Usually when you have a NVidia graphics card in your system the CPU does not really help with rendering. You can switch it off in the Render Settings pane → Hardware

    So that results in faster rendering than with both CPU and GPU working?  Seems countertuitive, although I realize these nVidia GPU's are pretty awesome. 

    Rendering with both GPU and CPU is faster than using GPU but only not that significantly, depending on how powerfull your CPU is. For instance, I could only see appr. 3~5% time saving with checking GPUs + CPU of my AMD Threadripper 3990x.

    Sometimes the extra overhead on the CPU from both rendering and managing the rendering does seem to make the whole process slower, or has in the past, for some systems and/or some renders.

  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 557

    Thank you, Everyone, for the tips !  

  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 557

    Here is a snapshot of GPU only rendering with CPU fallback.

    I personally feel it is more efficient than for the shared GPU-CPU rendering option, because my CPU fan keeps starting up.  With GPU-only rendering, my CPU fan stays quiet.

     

    DS4 renders with my GPU.png
    1191 x 1006 - 469K
  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 557
    edited November 2025

    ibr_remote aka infinity10 said:

    Here is a snapshot of GPU only rendering with CPU fallback.

    I personally feel it is more efficient than for the shared GPU-CPU rendering option, because my CPU fan keeps starting up.  With GPU-only rendering, my CPU fan stays quiet.

     

    For interest - I modelled the t-shirt and the corridor using Blender3D and set them up with 3rd-party shaders in DS 2025 (v6.x).  The bag I used was by a creator who has long left this planet. Using with thanks.

    Post edited by ibr_remote aka infinity10 on
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