Minecraft Paper vs Fabric vs Forge: TPS, CPU, and RAM Hardware Comparison

Paper, Fabric, and Forge are not interchangeable. They load mods differently, tick differently, and stress CPU and RAM in different places. If you size hardware for the wrong server software, you will either overspend or hit TPS problems that no config flag can fix. This guide compares the three with concrete CPU and RAM numbers.

How Each Loader Works

• Paper — a plugin-based fork of Spigot. Highest performance, asynchronised chunk and entity handling, but plugin compatibility only.
• Fabric — a lightweight mod loader. Minimal overhead, fast updates, best for small modpacks and technical players.
• Forge — the heavyweight loader with the deepest mod ecosystem. Highest RAM and startup cost, and the most tick overhead.

CPU and RAM Comparison

Loader	Relative CPU per player	RAM per player	Cold start	Best for
Paper	0.7x	60–90 MB	10–20 s	Large vanilla-style communities
Fabric	1.0x	90–140 MB	20–40 s	Small modpacks, technical servers
Forge	1.4–1.8x	200–450 MB	60–180 s	Large curated modpacks

Turning That Into Hardware

For 60 concurrent players, Paper needs roughly a single 4.5 GHz core and 6 GB of heap; Fabric needs similar clock but 8 GB; Forge at the same count needs 12–16 GB of heap and benefits from a faster single-thread clock because its tick loop is heavier. In every case, the single-thread clock matters more than raw core count. A high-clock 8-core node beats a 24-core low-clock node for Minecraft every time.

Sizing Steps

1. Pick the loader based on your required mods, not habit.
2. Multiply RAM per player by peak count, then add 25%.
3. Confirm the CPU has strong single-thread performance at 4.2 GHz or higher.
4. Budget NVMe for world saves — Forge worlds grow fastest.
5. Load-test with real modpacks, not vanilla, before launch.

Common Mistakes

Running Forge on a node chosen for core count is the most expensive mistake, because those extra cores sit idle while one thread is saturated. The second is migrating a Paper community to Forge without re-sizing RAM — a 40% memory increase is typical. If you want a platform with both high clocks and enough memory channels, our dedicated server comparison lists clock speeds and DIMM channels for each option. For large communities, our high-traffic hosting setups are pre-balanced for Forge-class loads.

Tick Performance Under Load

At 60 players, Paper typically holds 20 TPS with a single thread near 60% utilisation. Fabric sits around 70%. Forge can push the same thread past 90% and start dropping ticks, because every mod’s tick handler runs on the main thread. That is why Forge servers hit a wall earlier than their RAM suggests.

Loader	Thread @ 60 players	TPS under load	Scale limit
Paper	~60%	20.0	~200 players
Fabric	~70%	20.0	~120 players
Forge (heavy pack)	90%+	18–19	~70 players

Mod Count Is a Capacity Variable

• Under 50 mods — Fabric and Forge behave similarly.
• 50–150 mods — Forge’s tick overhead becomes measurable.
• 150+ mods — RAM per player can exceed 400 MB and startup passes three minutes.
• Heavy worldgen mods — new chunk generation spikes CPU far above steady state.

Storage and Startup Implications

Forge packs load thousands of small files at startup — NVMe cuts this dramatically.

World saves grow fastest on Forge; budget more NVMe capacity.

Pre-generate chunks so live generation does not spike CPU.

Keep the OS page cache warm by avoiding memory oversubscription.

Choosing for Growth

If you may migrate from Paper to Forge later, buy RAM and NVMe headroom now — retrofitting means downtime. A node with strong single-thread clock and 64 GB of memory will run any of the three loaders comfortably at community scale. Our dedicated server comparison highlights platforms with both high clocks and generous memory, and our high-traffic hosting setups are tuned for Forge-class loads out of the box.

Plugin and Mod Strategies by Loader

On Paper, performance work is mostly asynchronous: chunk loading, entity tracking, and pathfinding can be moved off the main thread, and plugins exist to do exactly that. On Fabric, the community favours lightweight, single-purpose mods, so overhead stays low but you lose the deep integration of larger Forge packs. On Forge, the mod ecosystem is the deepest but every mod competes for the same main thread, so the discipline is to audit your pack and remove mods that tick needlessly. A pack trimmed from 200 to 120 mods frequently buys 30% more player capacity with no visible feature loss.

Migration Considerations

• Paper to Fabric — plugins will not transfer; mods must be rebuilt or replaced.
• Fabric to Forge — generally feasible, but world data from modded blocks may not map cleanly.
• Anything to Paper — the safest performance move, at the cost of losing mods.
• RAM headroom — always migrate onto a node with at least 25% free memory.

A Decision Flow

Start with the feature requirement: do you need client-side mods that change gameplay? If not, Paper gives the most players per dollar. If you need a handful of gameplay mods, Fabric is the efficient middle path. If you need deep, interconnected content, Forge is the only option, and you should budget for its CPU and RAM overhead from day one. Whichever path you take, size for the loader you will run in six months, not the one you launch with, so a later upgrade is a config change rather than a re-provisioning project.

Bottom Line

Choose the loader first, then size CPU clock and RAM to match. Paper is cheapest to run, Fabric is the middle ground, and Forge demands the most of both. Match your hardware to the loader and your TPS problems largely disappear.