[Unit]
Description=AMD GPU High Performance Mode
After=multi-user.target

[Service]
Type=oneshot
ExecStart=/bin/bash -c 'echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level'
ExecStart=/bin/bash -c 'echo 2 > /sys/class/drm/card0/device/pp_dpm_sclk'
ExecStart=/bin/bash -c 'echo 3 > /sys/class/drm/card0/device/pp_dpm_mclk'
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target