SkyFactory 4 Server Hosting

How much RAM does a SkyFactory 4 server need?

For most groups we recommend 6 GB of RAM to run SkyFactory 4 on Forge 1.12.2. That headroom keeps the world at a smooth 20 TPS while the pack loads its chunks, entities, and world generation. You can start as low as 4 GB for a small group on an already-explored map, but a skyblock pack like this is memory-hungry, and running short of heap is the most common cause of lag and crashes.

RAM needs climb with your player count, render and simulation distance, the size of freshly generated terrain, and any extra mods or datapacks you add on top of the base pack. If you regularly host a full group, explore new chunks, or raise the view distance, size up a tier rather than sitting at the 4 GB floor.

How to make a SkyFactory 4 server

1. Pick a plan with at least 6 GB of RAM so SkyFactory 4 has the headroom it needs from day one.
2. Install SkyFactory 4 in one click from the modpack list in our Pterodactyl-based panel, or upload the pack's server files directly for a custom build.
3. Allocate memory with matching -Xms and -Xmx values plus Aikar's flags — our panel applies them for steady garbage collection under a modded load.
4. Start the server, connect with the matching SkyFactory 4 version on your Forge 1.12.2 client, and invite your players.

Why host SkyFactory 4 on Prism Nodes?

SkyFactory 4 is a CPU-bound, single-thread-heavy workload, so raw per-core speed drives your TPS far more than core count. Every Prism Nodes plan pairs fast Ryzen cores with DDR5 memory and NVMe storage, so chunk loading, world generation, and mod tick logic all stay quick even deep into a modded world.

• High-clock AMD Ryzen 9950X CPUs (with Ryzen 7900 and 7950X across the fleet) for the single-thread speed that drives modded TPS.
• DDR5 memory and NVMe SSD storage for fast chunk loads and world saves.
• Terabit+ DDoS protection so your server stays online through attacks.
• One-click installs and full file access from a Pterodactyl-based control panel.
• Instant setup with locations across North America, Europe, and Asia-Pacific.