FerriteCore Mod (1.21.8, 1.20.1) – Optimize RAM Usage in Minecraft

Minecraft can be incredibly memory-hungry especially when running large modpacks. The FerriteCore Mod (1.21.8, 1.20.1) addresses this by optimizing how the game stores data in memory, significantly reducing RAM consumption without sacrificing performance or compatibility. Whether you’re trying to fit a modpack on a lower-end machine or just want a smoother experience, FerriteCore helps lighten the load.

Features:

• Reduces Minecraft’s RAM usage
  Optimizes memory allocations and object storage across multiple systems in the game, lowering heap size usage significantly.
• Efficient data storage
  Redesigns how certain registries and data structures are handled internally, making them more compact in memory.
• Ideal for large modpacks
  Particularly effective in heavy mod environments where memory overhead from registries, block states, and model data is high.
• Lightweight and non-intrusive
  Doesn’t modify gameplay or visuals purely a backend optimization with no player-facing changes.
• Real-world memory savings
  Example benchmarks show heap size dropping from 1,792 MB (vanilla) to 984 MB with FerriteCore, compared to 1,335 MB with Hydrogen.
• Works client-side and server-side
  Benefits apply whether you’re hosting a server or just playing solo.
• Supports Fabric, Forge, and NeoForge
  Multiloader compatible, easy to integrate into most setups.

Requires:

Minecraft Forge or Fabric API or NeoForge Installer

How to install:

How To Download & Install Mods with Minecraft Forge

How To Download & Install Fabric Mods

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Why use FerriteCore Mod?

Memory usage is one of the biggest performance bottlenecks in Minecraft modding. FerriteCore offers a simple but powerful solution: reduce RAM consumption without changing how the game behaves. This can lead to smoother gameplay, fewer crashes, and better compatibility with low-memory environments.

Perfect for:

• Players with limited RAM
• Modpack developers aiming for stability
• Servers that want to serve more players per instance

When paired with other performance mods like Lithium, Starlight, and Sodium, it forms part of the ultimate Minecraft optimization stack.