LACT vs MoreClockTool

LACT is a free, MIT-licensed Linux tool for controlling and monitoring AMD, Nvidia, and Intel GPUs. It reports VBIOS, VRAM, hardware units, Resizable BAR status, and Vulkan features. Monitoring provides configurable historical charts for power, thermals, and frequency, plus throttling information and CSV export. Controls include power caps, AMD power states, GPU and VRAM clocks, and custom fan curves on AMD and Nvidia. Undervolting uses voltage offsets on AMD and VF curves on Nvidia. Profiles can activate according to running processes or gamemode status. A system service applies GPU configuration without depending on a graphical session and can run headless from a configuration file. LACT includes an OpenTelemetry metrics exporter and exposes a JSON API over a Unix socket or TCP. The TCP listener is disabled by default; remote TCP management has no authentication or encryption. Packages are listed for several Linux distributions, with Flatpak and Docker service-only options. Available controls vary by GPU generation, driver, and hardware.

MoreClockTool (MCT) is a free Windows utility for simpler overclocking of newer AMD graphics cards, intended to complement MorePowerTool and Red BIOS Editor. The maker lists RDNA 2 and RDNA 3 support, with RDNA 4 compatibility added in an April 2025 update. Users can enter minimum and maximum clock frequencies in MHz, limit voltage increases, and adjust GPU power by percentage. MCT can save and load multiple settings profiles, including profiles created in Wattman. Its Set control applies changes in real time, while Reset restores factory defaults. It also includes a Memory Fast Timing Level setting and fan controls analogous to Wattman; for further memory and fan settings, the maker points users to MorePowerTool. The download page lists MCT 1.1.11 Version 2, dated 12.04.2025, with ADLX 1.4 support, RDNA4 bug fixes, and an ImageSharpening Sharpen Desktop feature. The maker describes use as experimental and at the user's own risk, warning that higher voltages may damage hardware and that the tool is not intended for all-settings production use around the clock.