Paper vs Purpur vs Fabric: The Ultimate Minecraft Server Software Comparison

Selecting the correct server runtime wrapper dictates whether your Minecraft multiplayer server maintains a stable 20 Ticks Per Second (TPS) or degrades into a laggy mess. Let's compare PaperMC, Purpur, and Fabric.

PaperMC: The Standard for Plugin Servers

Paper is a high-performance fork of Spigot, designed to fix gameplay lag, optimize tick calculations, and secure exploitation loops. Paper implements asynchronous chunk loading, patches redstone simulation lag, and provides detailed configuration files (paper-world-defaults.yml) to limit entity updates.

Purpur: Ultimate Performance and Customizability

Purpur is a fork of PaperMC built with the sole goal of adding extreme customization capabilities and additional performance patches. Purpur allows you to customize mob behaviors, entity speeds, and implements optimized tick loops that can squeeze out extra performance on high-capacity servers.

Fabric: The Best Choice for Vanilla and Modded Play

Unlike Paper and Purpur, Fabric does not rewrite Minecraft's internal tick calculations to optimize performance by default. Instead, it acts as a lightweight mod loader. To achieve 20 TPS under heavy loads, developers pair Fabric with performance mods such as Lithium, Krypton, and FerriteCore. This preserves exact Vanilla technical game mechanics, making it the preferred choice for redstone-heavy technical servers.

Comparative Breakdown

Optimal Startup Script Configuration

To achieve maximum performance on SkyRainCloud AMD EPYC server nodes, always use Aikar's Flags when starting your server jar:

java -Xms8G -Xmx8G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8m -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -jar server.jar nogui