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FerriteCore (Fabric) logo

FerriteCore (Fabric)

Mod

by malte0811

Memory usage optimizations

Type

Mod

CurseForge Downloads

78,462,149

CurseForge ID

459857

Last Updated

Nov 6, 2026

Description

This page is for the Fabric version. If you are looking for the Forge version you can find it here.

This mod reduces the memory usage of Minecraft in a few different ways. A high-level technical description of the changes is available here.

The amount of memory saved will depend on the pack. In version 2.5.9 of All Of Fabric 3 it reduces the RAM usage (heap size) from 1,792 MB to 984 MB.
These values were measured after generating a world with a fixed seed and waiting for two minutes. You may notice that the setup is different from the Forge version, where I compared memory usage at the title screen. This is because Forge populates some caches (which are optimized by FC) before the title screen, while Fabric (and vanilla MC) wait until a world is loaded.

The project picture is a cropped version of this picture.

FAQ

Should I install this on the server or just on the client?

Some optimizations are client-side only, but there are some rather high-impact optimizations that are relevant on the server too. So you should install it on both sides.

Is this compatible with [other mod]?

Most likely yes. The only exception is Hydrogen, which is compatible with all recent FerriteCore versions on Minecraft versions where Hydrogen is officially released. This means that 1.18+ builds are not compatible with Hydrogen, since it has been officially archived and won't receive any releases on these versions.

Compatibility

Mod Loaders

Client Fabric Server

Game Versions

26.1 26.1.1 26.1.2 26.2 26.3

Recommended Gear

Affiliate

Hardware and extras that pair well with this mod.

Mini PC for self-hosting

Mini PC for Self-Hosting

A low-power box that can sit in a cupboard and run a modded server around the clock.

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Included in Modpacks (728)

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Fabulously Optimized Fabulously Optimized Cobblemon Official Modpack [Fabric] Cobblemon Official Modpack [Fabric] Prominence™ II: Hasturian Era Prominence™ II: Hasturian Era Better MC [FABRIC] BMC1 Better MC [FABRIC] BMC1 Better MC [FABRIC] BMC2 Better MC [FABRIC] BMC2 Immersed With Shaders Immersed With Shaders Medieval MC [FABRIC] MMC1 Medieval MC [FABRIC] MMC1 DarkRPG - RPG with Magic, Origins, Quests, Adventure DarkRPG - RPG with Magic, Origins, Quests, Adventure Homestead - A Cozy Survival Experience Homestead - A Cozy Survival Experience BounceSMP: Public BounceSMP: Public BigChadGuys Plus (w/ Cobblemon!) BigChadGuys Plus (w/ Cobblemon!) OptiFabriс OptiFabriс Slimes Adventure Slimes Adventure HORROR - Into The Backrooms - Found Footage (horror) (dweller) HORROR - Into The Backrooms - Found Footage (horror) (dweller) Dungeon Heroes (RPG Series) Dungeon Heroes (RPG Series) Fantasy MC Fabric Fantasy MC Fabric Better MC [FABRIC] BMC3 Better MC [FABRIC] BMC3 Valhelsia: Enhanced Vanilla Valhelsia: Enhanced Vanilla Boosted FPS (Performance Optimized) (FB) Boosted FPS (Performance Optimized) (FB) Distant Horizons & Iris Shaders Distant Horizons & Iris Shaders Create: Astral Create: Astral Cobblemon - Mega Pokemon in Cobblemon + Trainer Gyms + Cobblemon with Friends + Cobblemon MMO RPG for Cobblemon Realms Cobblemon - Mega Pokemon in Cobblemon + Trainer Gyms + Cobblemon with Friends + Cobblemon MMO RPG for Cobblemon Realms Skyblocker Collections Skyblocker Collections All of Fabric 3 - AOF3 All of Fabric 3 - AOF3 Keo optimized Keo optimized BigChadGuys and the Holy Grail BigChadGuys and the Holy Grail Spunky Boost Spunky Boost Breakneck: Optimized | FPS Boost, Shaders & QoL Breakneck: Optimized | FPS Boost, Shaders & QoL All of Fabric 6 - AOF6 All of Fabric 6 - AOF6 OriginsSMP OriginsSMP All of Fabric 5 - AOF5 All of Fabric 5 - AOF5 All of Fabric 7 - AOF7 All of Fabric 7 - AOF7 Amazing Xray Amazing Xray Another Quality Modpack 2 - AQM2 Another Quality Modpack 2 - AQM2 Epic Shaders - All The Shaders Epic Shaders - All The Shaders Wynncraft Plus Wynncraft Plus Cobblemon Academy 2.0 Cobblemon Academy 2.0 StaTech Industry StaTech Industry TownCraft TownCraft MAX FPS: Optimized MAX FPS: Optimized The Cobblemon SMP - Pokemon in Minecraft The Cobblemon SMP - Pokemon in Minecraft Cobblemon Academy (Legacy) Cobblemon Academy (Legacy) Medieval MC [FABRIC] MMC3 Medieval MC [FABRIC] MMC3 All of Fabric 4 - AOF4 All of Fabric 4 - AOF4 Conquest Reforged Modpack (Fabric) Conquest Reforged Modpack (Fabric) NotiFine NotiFine CobbleGalaxy - Cobblemon CobbleGalaxy - Cobblemon Actions & Better [ON JAVA] Actions & Better [ON JAVA] Ultimate Origins Modpack Ultimate Origins Modpack Craft to Exile [Harmony] Craft to Exile [Harmony] Dreamcraft [FABRIC] Dreamcraft [FABRIC] Origins SMP: Fabric Origins SMP: Fabric BigChadGuys Plus (Non Cobblemon!) BigChadGuys Plus (Non Cobblemon!) Create Optimized [FABRIC] Create Optimized [FABRIC] Thunder Thunder OptiMobile+ OptiMobile+ Vanilla Perfected (Curseforge Edition!) Vanilla Perfected (Curseforge Edition!) Origin - SMP Origin - SMP Prominence™ I (Legacy) Prominence™ I (Legacy) Medieval MC [FABRIC] MMC2 Medieval MC [FABRIC] MMC2 Speed Of Light FPS Booster (SOL) Speed Of Light FPS Booster (SOL) Cobblemon SMP - RPG - The #1 Cobblemon Experience - Pokemon in Cobblemon Aventure Cobblemon SMP - RPG - The #1 Cobblemon Experience - Pokemon in Cobblemon Aventure New Revolution - An Improved Vanilla Experience | 1.21 UPDATE! New Revolution - An Improved Vanilla Experience | 1.21 UPDATE! Vanilla+ Lightweight | MC Vanilla+ 1.21.11 Vanilla+ Lightweight | MC Vanilla+ 1.21.11 FPSBOOST FPSBOOST Origins++ Modpack Origins++ Modpack Xray Pack Xray Pack More FPS [FABRIC] - SHADERS 1.21.11! More FPS [FABRIC] - SHADERS 1.21.11! [FABRIC] Adventure Pack [FABRIC] Adventure Pack Better Realism MC | Vanilla+ & Realism (Based on RealismCraft) Better Realism MC | Vanilla+ & Realism (Based on RealismCraft) Sky FABRICation 2 Sky FABRICation 2 Attack On Titan - Awakening Of The Titans Attack On Titan - Awakening Of The Titans Euphoric Curiosity Euphoric Curiosity Immersive Trailer Experience Immersive Trailer Experience [Fabric] Simple Origins [Fabric] Simple Origins Guild Adventures Guild Adventures Speed Of Light FPS Booster (SOL) With Shaders Speed Of Light FPS Booster (SOL) With Shaders Essentials Mods [FABRIC] - 1.21 RELEASE! Essentials Mods [FABRIC] - 1.21 RELEASE! DiosesMC - Official DiosesMC - Official Sky FABRICation 3 Sky FABRICation 3 Spell Dimension Spell Dimension VR experience | Immersion plus | [FABRIC] - [ 1.21.5!!] VR experience | Immersion plus | [FABRIC] - [ 1.21.5!!] Wightcraft Wightcraft Satisfaction Guaranteed Satisfaction Guaranteed Axas Perfect Pack Axas Perfect Pack Fabri's Frontiers Fabri's Frontiers More Animals [FABRIC] - 1.21 UPDATE! More Animals [FABRIC] - 1.21 UPDATE! Immersed With Shaders Refabricated Immersed With Shaders Refabricated Sodium Chloride Sodium Chloride Vulkan Optimization Vulkan Optimization The Solar Apocalypse The Solar Apocalypse Optimized Performance | Boost FPS & Shaders - More FPS! Optimized Performance | Boost FPS & Shaders - More FPS! Feather | Lightweight Vanilla+ Modpack Feather | Lightweight Vanilla+ Modpack X95 PVP Client X95 PVP Client Skypixel (for Hypixel Skyblock) Skypixel (for Hypixel Skyblock) Fantasy RPG - RPG Quests, Bosses & Magic | Fantasy & RPG Fantasy RPG - RPG Quests, Bosses & Magic | Fantasy & RPG Fuller's PokePack: cobblemon / pokemon modpack Fuller's PokePack: cobblemon / pokemon modpack OptiMobile (Fabric) OptiMobile (Fabric) Extra Origins SMP Extra Origins SMP Actions on Java Actions on Java

External Resources

CurseForge Source Code Issues