Arch Linux vs NixOS
Arch Linux: Build the system you want. Keep learning. NixOS: Your whole system, described in configuration. Here is how they differ, and which one suits you.
Quick verdict
- BeginnersTieBoth are a similar fit here.
- GamingArch LinuxArch Linux ships gaming-oriented defaults or current drivers.
- Older hardwareArch LinuxArch Linux needs about 2 GB of RAM versus 4 GB.
- Latest softwareArch LinuxArch Linux uses a rolling model; NixOS is stable.
- Long-term stabilityNixOSNixOS changes less between upgrades.
Specs compared
| Feature | Arch Linux | NixOS |
|---|---|---|
| Popularity rank (30d) | #8 | #9 |
| Latest version | — | 26.05 (May 30, 2026) |
| Based on | Independent | Independent |
| Release model | Rolling | Stable |
| Desktop | Your choice | GNOME, KDE Plasma, more |
| Package management | Pacman · AUR (community) | Nix |
| Init system | systemd | systemd |
| Experience level | Advanced | Advanced |
| Suggested RAM | 2 GB+ | 4 GB+ |
| Architectures | x86_64 | x86_64, aarch64 |
| First released | 2002 | 2003 |
| Price | Free | Free |
| Good for | Development, Gaming, Older hardware | Development, Servers, Immutable systems |
Key differences
- Arch Linux follows a rolling release model; NixOS is stable.
- Arch Linux ships Your choice; NixOS ships GNOME, KDE Plasma, more.
- Software comes from Pacman · AUR (community) on Arch Linux and Nix on NixOS.
- We suggest about 2 GB of RAM for Arch Linux and 4 GB for NixOS.
Choose Arch Linux if…
- highly configurable installation
- rolling access to current packages
- detailed ArchWiki documentation
Requires active maintenance and attention to news
Full Arch Linux profileChoose NixOS if…
- declarative system configuration
- reproducible development environments
- bootable system generations
Nix has a substantial learning curve
Full NixOS profileArch Linux vs NixOS: FAQ
Is Arch Linux better than NixOS?
Neither is better for everyone. Arch Linux is the stronger pick for gaming, older hardware, latest software; NixOS for long-term stability.
Which uses less RAM, Arch Linux or NixOS?
Arch Linux is lighter: we suggest about 2 GB versus 4 GB. The desktop you choose affects memory use more than the distribution itself.
Is Arch Linux based on NixOS?
No. Arch Linux is based on Independent; NixOS is based on Independent.
Can I switch from Arch Linux to NixOS without losing files?
Back up your home folder first. If /home is on a separate partition you can reinstall without formatting it, but a clean install with restored backups is safest.