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Question about how shared VRAM works

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  • W This user is from outside of this forum
    W This user is from outside of this forum
    [email protected]
    wrote on last edited by
    #1

    Question about how shared VRAM works

    So I need to specify in the BIOS the split, and then it's dedicated at runtime, or can I allocate VRAM dynamically as needed by workload?

    On macos you don't really have to think about this, so wondering how this compares.

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    • W [email protected]

      Question about how shared VRAM works

      So I need to specify in the BIOS the split, and then it's dedicated at runtime, or can I allocate VRAM dynamically as needed by workload?

      On macos you don't really have to think about this, so wondering how this compares.

      B This user is from outside of this forum
      B This user is from outside of this forum
      [email protected]
      wrote on last edited by
      #2

      It's typically dynamic

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      • W [email protected]

        Question about how shared VRAM works

        So I need to specify in the BIOS the split, and then it's dedicated at runtime, or can I allocate VRAM dynamically as needed by workload?

        On macos you don't really have to think about this, so wondering how this compares.

        B This user is from outside of this forum
        B This user is from outside of this forum
        [email protected]
        wrote on last edited by
        #3

        On my 7800, it’s static. The 2GB I allocate is not usable for the CPU, and compute apps don’t like it “overflowing” past that.

        This is on Linux, on a desktop, ASRock mobo. YMMV.

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        • W [email protected]

          Question about how shared VRAM works

          So I need to specify in the BIOS the split, and then it's dedicated at runtime, or can I allocate VRAM dynamically as needed by workload?

          On macos you don't really have to think about this, so wondering how this compares.

          P This user is from outside of this forum
          P This user is from outside of this forum
          [email protected]
          wrote on last edited by
          #4

          It will most likely be dynamic, with the option to statically set it.

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