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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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Vital Collection Vital Collection Horror Backrooms [Remastered] Horror Backrooms [Remastered] Best PVP Modern Pack (BPMP) Best PVP Modern Pack (BPMP) Everwild (Cobblemon) Everwild (Cobblemon) StarterCraft - Beginner Edition | Beta 26.1! StarterCraft - Beginner Edition | Beta 26.1! ImmersiveMC - IMC2 ImmersiveMC - IMC2 MysticCraft Divivded Kingdoms MysticCraft Divivded Kingdoms Cobblemon Journeys End Cobblemon Journeys End StaTech Industry: GoG StaTech Industry: GoG Craft Complimentary Craft Complimentary Cobblefam Cobblefam Realistika (Realistic) Realistika (Realistic) FPS Boost Modpack for Low-End PC Ultimate Performance Modpack FPS Boost Modpack for Low-End PC Ultimate Performance Modpack StudiousGoose's SMP Additions StudiousGoose's SMP Additions The New Exploration!!! The New Exploration!!! Carlcraft MTR Server Carlcraft MTR Server Virtua Frontier Virtua Frontier Better Than Ocelots [A Modern Better Than Wolves Port!] Better Than Ocelots [A Modern Better Than Wolves Port!] Winter Arc Winter Arc FPS Unlock - Optimization [FABRIC] FPS Unlock - Optimization [FABRIC] Ark Origins - Back to Origins Ark Origins - Back to Origins Cobblemon Unbound Cobblemon Unbound Builder's Toolbox [Fabric Edition] | Best Building Experience Builder's Toolbox [Fabric Edition] | Best Building Experience Bombastic Fantastic World Experience Bombastic Fantastic World Experience Equal Sky! Equal Sky! Chunk by Chunk (Maggi's Edition) Chunk by Chunk (Maggi's Edition) JoJos Requiem JoJos Requiem Cobblemon Vulkan (Performance Pack) Cobblemon Vulkan (Performance Pack) Cobblemon: Path Of Legends Cobblemon: Path Of Legends PokeWild Cobblemon PokeWild Cobblemon VulkanPojav VulkanPojav Zenavia Cobblemon Academy Zenavia Cobblemon Academy Cobblemon: Unbound Cobblemon: Unbound Rob's Cobblemon Academy Rob's Cobblemon Academy The Incy Experience The Incy Experience Maximal optimized Maximal optimized Emberspark Cobblemon Emberspark Cobblemon Castle - exaroton Parkour Challenge Castle - exaroton Parkour Challenge Professional PVP Professional PVP SaoWorld - Unofficial SaoWorld - Unofficial Cobblemon SMP: Trainer's Journey Cobblemon SMP: Trainer's Journey ARK: The Full Survival Package ARK: The Full Survival Package Cobblemon - Ranked PVP - Competitive PVE - #1 SMP-Server Pack Cobblemon - Ranked PVP - Competitive PVE - #1 SMP-Server Pack Better Fresh Start (BFS) Better Fresh Start (BFS) Cobblemon.RPG Cobblemon.RPG The Watchtower The Watchtower Flawlessly Optimized Flawlessly Optimized Star Wars Adventure Star Wars Adventure Smooth FPS Smooth FPS Lightning (FPS) Lightning (FPS) Simple Utilities Simple Utilities Fajita's Enhanced Minecraft Fajita's Enhanced Minecraft Lowfog Lowfog Nomadic Country: Survival Overhaul Nomadic Country: Survival Overhaul Perfect Realism (Patrix 32x-Distant Horizon-Shaders) Perfect Realism (Patrix 32x-Distant Horizon-Shaders) V-Cube V-Cube Cobblemon Irisian Edition Cobblemon Irisian Edition BTE Brazil Builder's Tools (by China) BTE Brazil Builder's Tools (by China) Anduril's Fate Anduril's Fate Ultra Distant Horizons LITE Ultra Distant Horizons LITE [OUTDATED] Cobbleland+ (Unofficial) [OUTDATED] Cobbleland+ (Unofficial) Fabric FPS Boost - High Performance Fabric FPS Boost - High Performance Divide & Conquer Divide & Conquer All Cobblemon in your world All Cobblemon in your world MotM - Sodium Edition MotM - Sodium Edition Dungeonia - The rpg modpack exploration withe dungon perspective Dungeonia - The rpg modpack exploration withe dungon perspective Mirabilis - Vanilla Plus Plus! Mirabilis - Vanilla Plus Plus! Classic Evolved Classic Evolved Savaru IV - Kohtalon Mies Savaru IV - Kohtalon Mies Modern Nostalgia (Old meets New) Modern Nostalgia (Old meets New) AestheticCraft - Cozy Adventure | MC Cozy 1.21.1 AestheticCraft - Cozy Adventure | MC Cozy 1.21.1 Cobble Cottage FABRIC EDITION Cobble Cottage FABRIC EDITION NYLE RP | Inspiré de CrazyTown NYLE RP | Inspiré de CrazyTown ImprovedCraft ImprovedCraft RedFox Cobblemon (Mobile) RedFox Cobblemon (Mobile) DungeonCraft Adventures [PHTB] DungeonCraft Adventures [PHTB] Essentials Fabric Essentials Fabric Vibrant N' Visuals Vibrant N' Visuals Smooth Pack Smooth Pack LUI BATTLE PACK LUI BATTLE PACK Brixel X ERAZER Brixel X ERAZER With Little More With Little More Fabliss NeoForge Fabliss NeoForge ANTI-LAG(Updated(again)) ANTI-LAG(Updated(again)) OptimalFPS OptimalFPS - Utopia - - Utopia - Shapeshifter's Adventures Shapeshifter's Adventures CobbleWobble - Cobblemon CobbleWobble - Cobblemon Enhanced Optimisation Enhanced Optimisation Better QoL Better QoL Eldarval Drehmal Eldarval Drehmal Cozy LevelZ Cozy LevelZ Vanilla Voyage - The Definitive Vanilla+ Pack Vanilla Voyage - The Definitive Vanilla+ Pack Voyager RPG - A Fantasy Action RPG Experience Voyager RPG - A Fantasy Action RPG Experience Modpack prokect Modpack prokect Survival - exaroton Parkour Challenge Survival - exaroton Parkour Challenge Warriors of the Rising Sun Warriors of the Rising Sun Promethium Promethium Westercraft Official Westercraft Official [PPE] Project Performance Enhance [PPE] Project Performance Enhance

External Resources

CurseForge Source Code Issues