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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    Advice on Overclocking a 4B

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    pi4boverclockv3d
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    • KaK
      Ka
      last edited by

      Hi all. I've been trying to overclock my Pi4, and while I haven't run into any problems per se, I'd be really grateful if someone could explain to me the various options around overclocking the GPU.

      I'd originally just followed the instructions here:

      https://magpi.raspberrypi.org/articles/how-to-overclock-raspberry-pi-4

      ...and set the following in my config.txt:

      over_voltage=6
      arm_freq=2147
      gpu_freq=750
      

      However, according to this page:

      https://www.raspberrypi.org/documentation/configuration/config-txt/overclocking.md

      ...you shouldn't use gpu_freq, as it tries to change core_freq, which can't be done on a Pi4. As such, according to this same page, you should try to set h264_freq, isp_freq, v3d_freq and hevc_freq seperately, ignoring core_freq.

      So if I wanted to overclock my GPU to try to squeeze a bit more performance out of N64 / Dreamcast performance, I would presumably have to alter one or more of those options. I have some questions, apologies if they're a bit basic!

      1. Would I need to include all of them, or would cranking up v3d_freq be enough?

      2. What should my config.txt look like if I wanted to boost v3d_freq? Do I need to remove the existing reference to gpu_freq?

      3. Is my GPU currently overlocked at all, or does the fact that gpu_freq is prevented from changing core_freq mean that its still set to the default value?

      Thanks in advance for any help!

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