CPU-X

What CPU-X is

CPU-X is a system profiling and monitoring application for GNU/Linux and FreeBSD. It gathers information about the processor, motherboard, memory, system, graphics card, and performance, presenting it through a GTK graphical interface, an NCurses text interface, or a command-line dump. It supports 32-bit and 64-bit x86 and ARM processors. The project lists packages for several Linux distributions and FreeBSD, alongside a portable AppImage and a Flatpak on Flathub. CPU-X is free and open source under the GPL-3.0 license, with a free plan priced at $0 and no paid plans or usage limits stated. Starting its daemon can expose special devices for additional information; that daemon needs root privileges and uses Polkit for privilege escalation. The maintainer, The Tumultuous Unicorn Of Darkness, announced the project’s end on September 27, 2026, and said it was being archived. New issues are not accepted, and the announcement noted that newer CPU generations were not properly detected.

Who it suits

CPU-X suits GNU/Linux or FreeBSD users who want system details through a graphical, text-based, or command-line interface. Its architecture support covers 32-bit and 64-bit x86 and ARM processors.

Limits

No paid plans or usage limits are stated. The maintainer said newer CPU generations were not properly detected, and the archived repository does not accept new issues.

Getting started

1. Choose a package for a supported Linux distribution or FreeBSD, or use the AppImage or Flatpak.
2. Run CPU-X in GTK graphical mode, NCurses text mode, or command-line dump mode.
3. Start the daemon with root privileges if you need access to special devices for more information.

Verdict

Choose CPU-X if you need a free, open source system information tool for GNU/Linux or FreeBSD and value its multiple interfaces. Look elsewhere if you need an actively maintained project or reliable detection of newer CPU generations.