Fan Control vs RyzenAdj

Fan Control is free Windows software for configuring CPU, GPU, and case fans across supported motherboards, graphics cards, AIOs, and other hardware. It offers seven documented curve types: RPM mode, Linear, Graph, Mix, Trigger, Flat, Sync, and Auto. Users can calibrate controls and adjust response time, hysteresis, RPM avoid zones, step-up and step-down behavior, and fan start or stop logic. Multiple profiles can be saved, edited, and loaded, with guided setup on first launch. Custom sensors can average or combine readings, apply offsets, or read temperatures from files. Mix curves can combine inputs using maximum, minimum, average, sum, or subtraction. Community.NET plugins add temperature, speed, or control sensors, with integrations listed for HWInfo, Home Assistant, Thermaltake, Corsair, Aquacomputer, NZXT Kraken, Lian Li, and others. The backend mainly uses LibreHardwareMonitor. Windows 10 and 11 are supported, with portable, installer, Scoop, Winget, and Chocolatey options. The plan is free.

RyzenAdj is a free command-line tool for adjusting power-management settings on Ryzen mobile processors. It runs on Windows and Linux and uses the same command-line interface on Windows and Unix-like systems. The tool exposes sustained, fast, and slow power limits in milliwatts, a Tctl temperature limit in degrees Celsius, and minimum and maximum clock controls for SoC, FCLK, VCN, LCLK, and GFX. The `--info` option displays information and key power metrics after adjustment; `--dump-table` shows the full power-metric table before and after. Shell scripts or Windows batch files can automate its use. It requires Administrator privileges on Windows or root access on Linux. Settings may need to be reapplied because device power-management features can overwrite them. Linux users must build from source, and Linux operation requires elevated access to the northbridge configuration space through libpci and `/dev/mem` or the ryzen_smu kernel module. Support and limitations vary across Ryzen families. The project is distributed under the GNU Lesser General Public License version 3.