Comparison
Rust vs Go on Windows
| Factor | Rust | Go |
|---|---|---|
| Memory management | Ownership system — no GC, no runtime | Garbage collected runtime |
| Performance | Maximum — no GC pauses, zero-cost abstractions | Very good — GC pauses, but low latency |
| Compile speed | Slow (borrow checker analysis) | Very fast |
| Binary size | Small with LTO (~1 MB for simple app) | Larger (Go runtime included, ~5-10 MB) |
| Windows support | Full — MSVC toolchain, windows-rs | Full — native Windows binary |
| Learning curve | Steep — ownership, lifetimes | Gentle — clean syntax, small spec |
| Concurrency | Data race freedom at compile time | Goroutines — simple, GC handles sync |
| Error handling | Result | error return values — explicit |
| Ecosystem | Growing — crates.io | Mature — Go modules, large stdlib |
| Best for | Systems, safety-critical, WebAssembly | Services, CLIs, cloud tooling |
Choose Rust when
When to choose Rust over Go
- No garbage collector — latency-critical systems where GC pauses are unacceptable (game engines, real-time audio)
- Memory safety is critical — security-sensitive code, OS-level software, parsers
- WebAssembly — Rust has the best Wasm support of any systems language
- Embedded / systems programming — Rust supports no_std environments; Go requires a runtime
- Interop with C libraries — Rust's C FFI is zero-overhead; Go's cgo has overhead
Choose Go when
When to choose Go over Rust
- Fast development — Go's simple syntax and fast compile times suit rapid iteration
- Cloud services and microservices — Go's concurrency model and standard library are excellent for HTTP services
- Large teams — Go's simplicity and strict formatting (gofmt) reduce style debates
- CLI tools — Go produces single-binary CLIs with a small stdlib; great for DevOps tooling
FAQ
Rust vs Go questions
Is Rust faster than Go?
For CPU-bound tasks, Rust is typically 10–30% faster than Go due to zero-cost abstractions and no garbage collector. For I/O-bound tasks (web services, file operations), they are much closer — Go's goroutines are very efficient for concurrency. Go's GC can cause latency spikes in latency-sensitive applications.
Which is easier to learn — Rust or Go?
Go is significantly easier to learn. Its specification is small, the syntax is clean, and most developers are productive within a week. Rust has a steep learning curve due to the ownership system and borrow checker. Most developers take 1–3 months to become productive in Rust. The effort pays off in safety and performance for the right use cases.