ARM vs x86 for Minecraft Servers
Comparison of ARM and x86 CPU architectures for Minecraft server hosting, covering Java compatibility, performance benchmarks, cloud availability, and mod support.
Two Architectures, One Java Runtime
Minecraft runs on Java, and Java runs on both ARM and x86. In theory, this means your Minecraft server performs identically on either architecture. In practice, there are differences in performance, compatibility, and ecosystem maturity. The arm vs x86 minecraft server choice has become relevant because cloud providers like Oracle, AWS, and Azure now offer ARM instances at lower prices than x86 equivalents.
Java on ARM
OpenJDK has supported ARM (AArch64) for years. Modern JDK builds (Java 17, 21) run natively on ARM with full JIT compilation, meaning Java bytecode is compiled to native ARM instructions at runtime. There is no emulation penalty. The JVM's garbage collectors (G1, ZGC, Shenandoah) work identically on both architectures.
That said, the ARM JIT compiler has received less optimization attention than the x86 JIT over Java's 25+ year history. Some specific code patterns execute slightly slower on ARM due to less mature optimization passes. For Minecraft, this translates to a roughly 5 to 15% lower tick processing speed on ARM compared to an x86 core at the same clock speed. The arm vs x86 minecraft server gap is narrowing with each JDK release.
Server-Side Compatibility
Paper, Purpur, Fabric
Pure Java server software works perfectly on ARM. Paper, Purpur, Fabric, and Vanilla all run without modification. Plugins written in pure Java (EssentialsX, LuckPerms, WorldGuard, Vault, PlaceholderAPI) work identically on ARM.
Forge and NeoForge
Forge also runs on ARM, but some mods bundle native libraries (written in C/C++) that are compiled only for x86. These mods will crash on ARM. Common examples include certain performance mods that use native rendering hooks (client-side only, so typically not a server issue) and some voice chat mods like Simple Voice Chat that include native audio libraries.
For a server running Forge or NeoForge, test your specific modpack on ARM before committing. Most server-side mods are pure Java and work fine.
Bedrock / Geyser
GeyserMC (the Bedrock-to-Java bridge) is pure Java and runs on ARM without issues. If you use Floodgate alongside it, that is also pure Java. The arm vs x86 minecraft server compatibility for Geyser setups is identical.
Performance Benchmarks
| CPU | Architecture | Cores Used | Avg Tick (ms) | TPS (40 players) |
|---|---|---|---|---|
| Ampere Altra (Oracle Cloud) | ARM (Neoverse N1) | 4 | 46 ms | 19.7 |
| AWS Graviton 3 | ARM (Neoverse V1) | 4 | 42 ms | 19.9 |
| AMD EPYC 7R13 (AWS) | x86 (Zen 3) | 4 | 39 ms | 20.0 |
| Intel Xeon (GCP n2) | x86 (Ice Lake) | 4 | 41 ms | 19.9 |
| Ryzen 7 9700X (desktop) | x86 (Zen 5) | 1 (main thread) | 35 ms | 20.0 |
ARM cloud instances are within 10 to 15% of x86 cloud instances. Desktop x86 CPUs remain the fastest option due to higher clock speeds and more aggressive IPC. For a deeper CPU comparison, see our best CPU guide.
Cost Advantage of ARM
The real argument for ARM is cost. On AWS, Graviton 3 instances cost roughly 20% less than equivalent x86 instances. On Oracle Cloud, ARM instances are part of the Always Free tier, offering 4 cores and 24 GB RAM at zero cost. If you can accept a 10% performance penalty, ARM often delivers more performance per dollar, especially in the cloud.
For self-hosted servers, ARM options are limited. The Raspberry Pi 5 can run a small Minecraft server (see our Raspberry Pi guide), but it is not competitive with a desktop x86 build for anything beyond 5 players.
Native Dependencies to Watch
Some tools in the Minecraft ecosystem have native (non-Java) components:
- Dynmap: Pure Java, works on ARM.
- BlueMap: Pure Java, works on ARM.
- Plan: Pure Java, works on ARM.
- Chunky: Pure Java, works on ARM.
- Simple Voice Chat: Uses native audio, may fail on ARM servers (but server-side component is Java).
- Discord SRV: Pure Java, works on ARM.
The arm vs x86 minecraft server compatibility issue is rare for server-side software. Client-side mods with native rendering are more commonly x86-only, but those do not affect your server.
See what optimized hardware feels like in game: Astroworld MC, IP play.astroworldmc.com, Java + Bedrock.
Recommendation
If you are building or buying a dedicated server, use x86 (AMD Ryzen or EPYC). The performance lead is clear and the ecosystem compatibility is universal. If you are choosing a cloud instance and cost matters, ARM (Graviton 3 or Ampere Altra) offers excellent value with minor trade-offs. The arm vs x86 minecraft server decision ultimately depends on whether you prioritize raw performance or cost efficiency.