Are you unsure what parts of your computer matter most for hosting? In this guide you will learn what CPU, RAM and storage do for your server, and how to size them for a smooth session.

CPU handles the tick loop

The CPU runs game logic every tick. More mobs, redstone and players means more work. If your world feels slow while RAM still looks fine, the CPU is likely the limit. Reduce simulation distance and heavy automation during busy times and close other apps that use the CPU.

RAM keeps worlds and mods loaded

RAM holds chunks, entities and mod code in memory so the server can access them quickly. Use these starting points, then adjust.

• 1 to 5 players on vanilla: 2 to 3 GB
• 6 to 10 players on vanilla: 4 GB
• 11 to 20 players on vanilla: 6 GB
• Modpacks: add 2 to 4 GB

Storage affects saving and loading

A faster drive helps with world saves and loading many chunks. If you see pauses during saves, try a faster drive or keep your server files on a drive that is not busy with other tasks. Always shut down cleanly before turning off your PC so files are not corrupted.