LACT is a graphical tool for AMD Radeon information reporting, GPU overclocking, fan control, power/thermal monitoring, and additional power state configurations.
v0.5.3 adds support for displaying the current graphics clock “current_gfxclk”, information around GPU throttling is now reported, improved fan control for older GPUs, improved fan curve point adjustments, many bug fixes, and other enhancements.
Yes, it maintains its config across reboots, it uses a systemd daemon that handles the backend. On most distros it should just work automatically, but if not you can edit the config.yaml file to set up your permissions there.
It’s great software. I’ll have to try editing the permissions because on Tumbleweed it only works when run as root. It complains that the service isn’t running as a user.
Also, I noticed that series 7000 gpus have serious problems under the most recent stable kerne when using an egpu setup. LACT shows that they cannot draw enough wattage, so they never get up to speed. Older gpus work fine.