Xfce runs on over 90 UNIX-like distributions. Below is a short list of 6 representative distributions that use Xfce as their primary, default Desktop Environment (DE) as well as their minimum system requirements for installation.

Xubuntu

Xubuntu is a community‑developed, Ubuntu‑based Linux operating system. Its minimum requirements are:

• CPU: 1.0Ghz+ (needs to support PAE)
• RAM: 512MiB+ for Desktop/LiveCD
• Hard drive space: 7.5GB
• Graphics card and monitor capable of 800×600 resolution

MX Linux

MX Linux is “a cooperative venture between the antiX and former MEPIS communities, using the best tools and talents from each distro. It is a midweight OS designed to combine an elegant and efficient desktop with simple configuration, high stability, solid performance and medium-sized footprint.” Based on Debian Stable, its minimum system requirements are:

• A CD/DVD drive (and BIOS capable of booting from that drive), or a live USB (and BIOS capable of booting from USB)
• A modern i686 Intel or AMD processor
• 2 GB of RAM memory or more
• At least 10 GB free hard drive space
• A 3D-capable video card for 3D desktop support
• For use as a LiveUSB, 8 GB free if using persistence

Manjaro

Manjaro is based on and provides all the benefits of the Arch operating system combined with a focus on user-friendliness and accessibility. Its minimum system requirements are:

• One gigabyte (GB) of memory
• Thirty gigabytes (GB) of hard disk space
• A one gigahertz (Ghz) processor
• A high definition (HD) graphics card and monitor
• A broadband internet connection

Kwort

Kwort is a Slackware-based operating system featuring the Xfce4 desktop with Kwort's own Network Manager and kpkg package manager. Its minimum requirements are:

• CPU: PC i686 or above.
• RAM: 16MB for base system (minimum). 32MB for desktop (minimum), 64MB recommended.
• Hard drive space: 200MB for base system, 1.5GB for full desktop (Openoffice 2.0 included)

Mythbuntu

Mythbuntu is “an official Ubuntu flavor focused upon setting up a standalone MythTV based PVR system.Mythbuntu uses the XFCE desktop. All unnecessary standard Ubuntu applications such as LibreOffice, Evolution, and a full Gnome desktop are not installed in a default Mythbuntu install” Its minimum requirements are:

• CPU: 1.0 GHz x86 or x86_64 Processor
• RAM: 512 MB of system memory (RAM)
• Hard drive space: 2 GB of disk space (Frontend Role) / 10GB + 1.5GB/hour for storage of SD material (Backend Role)
• Graphics card capable of 1024×768 resolution (if using VDPAU, 256MB minimum)
• Supported TV Tuner Card (Backend Role)

Pentoo

Pentoo is “a security-focused livecd based on Gentoo. Here is a non-exhaustive list of the features currently included : available binary packages, updated 4 times daily, module loading support ala Slax, XFCE4 WM, dozens of daily security and functionality updates daily.” Its minimum requirements are:

• i686 Processor
• 2+ GiB of RAM
• an OpenGL capable 3D graphics card
• 30+ GB free hard drive space highly recommended
• DDC capable Monitor

The following memory footprint test was obtained on an Ubuntu 19.10 desktop and this script.

• Runlevel 3 : 118.1 MiB
• Login screen with lighdm (and no opened session) : TBA
• CTWM session : 218.9 MiB
• IceWM session : 293.5 MiB
• Xfce 4.14pre2 session : 374.9 MiB
• KDE 5 : 619.5 MiB