amdgpu-clocks vs Arc Power

amdgpu-clocks is a free, GPL-2.0-licensed Linux script for setting custom power states on AMD GPUs that use the amdgpu kernel driver. Where the hardware exposes the controls, it can adjust GPU and memory clocks, voltages, power caps, performance levels, and power profiles. The project says it should work with Polaris, Vega, Navi, and RDNA cards, but Vega GPUs in AMD APUs lack the required API. It can manage multiple cards, with custom state files selected by card identifier or PCI address. Users define settings in files under /etc/default. Fine-grained control requires Radeon OverDrive to be enabled in the kernel. A systemd service can apply states at startup, and a resume script can reapply them after suspend. For RDNA 3 and newer, it can handle driver-exposed Zero RPM fan settings; these require Linux 6.13 or newer, and stop-temperature control is available only on RDNA 3. A restore option returns states to their initial defaults, except the power profile, which it sets to 0. The README directs installation to /usr/local/bin; the GitHub releases page lists no releases.

Arc Power is a free Windows utility for Intel Arc graphics cards. It combines driver-backed tuning, hardware monitoring, graphics options, saved profiles and an in-game overlay in one application. Supported controls can cover clock speeds, power limits, temperature targets and fan behavior, depending on the selected GPU and its driver. The overlay reports clocks, temperatures, power, utilization, VRAM, FPS, 1% Low and 99% FPS readings, plus frame time. Alchemist cards can receive a negative voltage offset down to -200 mV. Named tuning profiles can be saved, loaded and set to apply when Arc Power launches. Graphics controls include XeSS Frame Generation, synchronization, frame limits, low-latency options and supported display settings. Reversible Windows graphics tweaks are also available. Arc A3/A5/A7 and B580/B570 are verified working; Arc Pro B50 and integrated Arc graphics are limited to tweaks and telemetry. Arc tuning needs an Intel Arc GPU, while AMD and NVIDIA cards may appear for telemetry. Windows 10 or 11 64-bit is required, with installer and portable downloads.