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FerriteCore (Fabric) logo

FerriteCore (Fabric)

Mod

by malte0811

Memory usage optimizations

Type

Mod

CurseForge Downloads

74,266,362

CurseForge ID

459857

Last Updated

Sep 10, 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.

Recommended Gear

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Hardware and extras that pair well with this mod.

LEGO Minecraft Set

LEGO Minecraft Set

Official sets that translate the building side of the game off-screen.

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As an Amazon Associate I earn from qualifying purchases.

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Included in Modpacks (674)

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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 Medieval MC [FABRIC] MMC1 Medieval MC [FABRIC] MMC1 Immersed With Shaders Immersed With Shaders DarkRPG - RPG with Magic, Origins, Quests, Adventure DarkRPG - RPG with Magic, Origins, Quests, Adventure BounceSMP: Public BounceSMP: Public Homestead - A Cozy Survival Experience Homestead - A Cozy Survival Experience BigChadGuys Plus (w/ Cobblemon!) BigChadGuys Plus (w/ Cobblemon!) OptiFabriс OptiFabriс Slimes Adventure Slimes Adventure Fantasy MC Fabric Fantasy MC Fabric Dungeon Heroes (RPG Series) Dungeon Heroes (RPG Series) HORROR - Into The Backrooms - Found Footage (horror) (dweller) HORROR - Into The Backrooms - Found Footage (horror) (dweller) 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 All of Fabric 3 - AOF3 All of Fabric 3 - AOF3 Skyblocker Collections Skyblocker Collections BigChadGuys and the Holy Grail BigChadGuys and the Holy Grail All of Fabric 6 - AOF6 All of Fabric 6 - AOF6 OriginsSMP OriginsSMP Breakneck: Optimized | FPS Boost, Shaders & QoL Breakneck: Optimized | FPS Boost, Shaders & QoL All of Fabric 5 - AOF5 All of Fabric 5 - AOF5 All of Fabric 7 - AOF7 All of Fabric 7 - AOF7 Another Quality Modpack 2 - AQM2 Another Quality Modpack 2 - AQM2 Amazing Xray Amazing Xray Spunky Boost Spunky Boost Keo optimized Keo optimized 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 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) Ultimate Origins Modpack Ultimate Origins Modpack Craft to Exile [Harmony] Craft to Exile [Harmony] Actions & Better [ON JAVA] Actions & Better [ON JAVA] Origins SMP: Fabric Origins SMP: Fabric BigChadGuys Plus (Non Cobblemon!) BigChadGuys Plus (Non Cobblemon!) NotiFine NotiFine CobbleGalaxy - Cobblemon CobbleGalaxy - Cobblemon Create Optimized [FABRIC] Create Optimized [FABRIC] 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! Origins++ Modpack Origins++ Modpack Vanilla+ Lightweight | MC Vanilla+ 1.21.11 Vanilla+ Lightweight | MC Vanilla+ 1.21.11 Sky FABRICation 2 Sky FABRICation 2 FPSBOOST FPSBOOST More FPS [FABRIC] - SHADERS 1.21.11! More FPS [FABRIC] - SHADERS 1.21.11! Euphoric Curiosity Euphoric Curiosity Immersive Trailer Experience Immersive Trailer Experience [Fabric] Simple Origins [Fabric] Simple Origins Speed Of Light FPS Booster (SOL) With Shaders Speed Of Light FPS Booster (SOL) With Shaders Better Realism MC | Vanilla+ & Realism (Based on RealismCraft) Better Realism MC | Vanilla+ & Realism (Based on RealismCraft) Guild Adventures Guild Adventures Sky FABRICation 3 Sky FABRICation 3 Essentials Mods [FABRIC] - 1.21 RELEASE! Essentials Mods [FABRIC] - 1.21 RELEASE! DiosesMC - Official DiosesMC - Official Wightcraft Wightcraft VR experience | Immersion plus | [FABRIC] - [ 1.21.5!!] VR experience | Immersion plus | [FABRIC] - [ 1.21.5!!] Spell Dimension Spell Dimension Fabri's Frontiers Fabri's Frontiers More Animals [FABRIC] - 1.21 UPDATE! More Animals [FABRIC] - 1.21 UPDATE! Satisfaction Guaranteed Satisfaction Guaranteed Sodium Chloride Sodium Chloride Immersed With Shaders Refabricated Immersed With Shaders Refabricated Feather | Lightweight Vanilla+ Modpack Feather | Lightweight Vanilla+ Modpack The Solar Apocalypse The Solar Apocalypse Skypixel (for Hypixel Skyblock) Skypixel (for Hypixel Skyblock) Extra Origins SMP Extra Origins SMP X95 PVP Client X95 PVP Client Optimized Performance | Boost FPS & Shaders - More FPS! Optimized Performance | Boost FPS & Shaders - More FPS! Fuller's PokePack: cobblemon / pokemon modpack Fuller's PokePack: cobblemon / pokemon modpack Symbolica Symbolica DayOfMind DayOfMind Actions on Java Actions on Java OpalFab (OptiFine alternatives on Fabric) OpalFab (OptiFine alternatives on Fabric) Survival Tools Survival Tools Medieval Immersed Medieval Immersed Easycraft (Official) Easycraft (Official) Xray Pack Xray Pack Sky FABRICation Sky FABRICation Nizco's Cobblemon Adventures 2 Nizco's Cobblemon Adventures 2 More Decorations [FABRIC] - 1.21 UPDATE! More Decorations [FABRIC] - 1.21 UPDATE! Bedrock Reloaded Bedrock Reloaded

External Resources

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