Recommendations#

This page outlines general best practices and hardware recommendations for hosting Arma 3 dedicated servers, whether you're running lightweight PvP matches or complex AI-heavy PvE missions.

General Recommendations#

• Prioritize CPU single-thread performance. Arma 3 is not heavily multi-threaded, and most server logic runs on a single main thread.
• Use SSDs or NVMe storage. Fast disk I/O helps reduce mission load times, mod streaming, and log writing overhead.
• Separate mods and profiles. Keep your mod files, server profile, and mission files in organized directories to prevent conflicts and make troubleshooting easier.
• Monitor server FPS and tickrate. Performance drops usually reflect overloaded CPU, not RAM or disk.
• Use headless clients when possible to offload AI and maintain smoother tickrates.
• Limit background scripts and excessive loops — inefficient mission design can cripple performance even with good hardware.

RAM Usage Guidelines#

While many users focus on memory, RAM is rarely the bottleneck. Most Arma 3 servers will not exceed 16–24 GB of RAM under typical loads.

• 45+ connected players
• Persistent or scripted missions like Liberation or Antistasi
• Heavy mod stacks (25+ large mods)
• Extended uptime (days without rebooting)

Hardware Specs by Scenario#

Final Thoughts#

• Server performance is more about clock speed and mission design than raw core count or RAM.
• If you're running a large community or persistent server, consider daily restarts, automated cleanup scripts, and active monitoring.
• Always test missions under realistic loads before going live.