Dedicated Game Server RAM & CPU Calculator
Calculate exact VPS RAM requirements, dedicated CPU threads and optimized startup scripts (Aikar's Flags) for Minecraft, Palworld, Rust, ARK and multiplayer game servers.
Parameters & Controls
Telemetry Console & Results
For 20 online players on Minecraft (Paper / Purpur / Spigot)
RAM_VPS (8 GB) = Heap (4 GB) + SO (1.5 GB) + Buffer_GC (0.6 GB)
Precalculated Engineering Configurations & Benchmarks
Direct access to high-intent hardware and game configurations with verified mathematical solutions:
RAM & CPU Sizing for Minecraft Paper Server (20 Players)
Calculate exact RAM and CPU for a 20-player Minecraft Paper server with 15 plugins. 6GB Heap, Aikar's Flags and 8GB VPS recommendation.
RAM Requirements for 100+ Mods Minecraft Server (Forge / Fabric)
Size RAM for heavy Minecraft modpacks (All The Mods, Better MC). 10GB–12GB Heap allocation and 16GB VPS with high-speed NVMe storage.
Palworld Dedicated Server RAM & Hardware (32 Players)
Hardware requirements for a 32-player Palworld server. Why you need 24GB to 32GB RAM to mitigate Unreal Engine 5 server memory leaks.
Running a high-tickrate game server requires precise segregation between the JVM heap (or native game engine process) and the host operating system. Allocating 100% of available physical RAM to the game server is the single most common cause of spontaneous server crashes via the Linux kernel Out-Of-Memory (OOM) killer.
#!/usr/bin/env bash # FaroTrend Automated Server Launcher (Minecraft (Paper / Purpur / Spigot)) # Target Allocation: 4G Heap | Java 21+ Recommended java -Xms4G -Xmx4G \ -XX:+UseG1GC \ -XX:+ParallelRefProcEnabled \ -XX:MaxGCPauseMillis=200 \ -XX:+UnlockExperimentalVMOptions \ -XX:+DisableExplicitGC \ -XX:+AlwaysPreTouch \ -XX:G1NewSizePercent=30 \ -XX:G1MaxNewSizePercent=40 \ -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
Authoritative Standards & Scientific Documentation:
Aikar's Modern JVM Garbage Collection Tuning Flags for Game Servers
G1GC garbage collection pause optimization sustaining stable 20.0 server TPS.
Oracle HotSpot Virtual Machine Memory Management Whitepaper
Heap sizing and native Metaspace allocation guidelines in modern Java 21 LTS.
Frequently Asked Technical Questions
Why should you avoid assigning more than 12GB RAM to Paper?
An oversized heap increases JVM Garbage Collector sweep times, creating noticeable server freeze ticks during generation cleanup.
Is world pregeneration critical for modded servers?
Yes, vital. Generating custom modded terrain on the fly consumes 90% CPU. Pregenerating with tools like Chunky eliminates generation lag spikes.
Why does Palworld server memory consumption escalate over time?
Because base Pal worker AI routines retain navigation meshes from inactive chunks. Automated scheduled service restarts keep memory usage under control.