The exact amount of memory required to run a Minecraft server varies greatly depending on the version of Minecraft you are running and any plugins you have installed.
Below are some general guidelines on the minimum amount of memory that we suggest for small servers.
|1.14+||We recommend a minimum of 3GB|
|1.13+||We recommend a minimum of 2 GB|
|1.12||1-2GB should run a small server fine
Feed the Beast and other Large mod packs
Most FTB packs require 3-4 GB minimum to launch.