https://rastating.github.io/how-to-permanently-set-nvidia-powermizer-settings-in-ubuntu/

# get all settings
nvidia-settings -q all | grep -C 10 -i powermizer
# get single
nvidia-settings -q "[gpu:0]/GPUPowerMizerMode"
# set value
nvidia-settings -a "[gpu:0]/GPUPowerMizerMode=1"
# set as a startup command to make it permanent