Rust Benchmark 2025: Faster than C++ and Safer than Go

Benchmark 2025: Rust vs C++, Go and Python — who wins the race?

In 2025, the Rust language has finally cemented itself among the top most performant and safe tools for systems programming. Fresh benchmarks published by the TechEmpower community and the Systems Performance Lab show that Rust is not just catching up to C++, but is surpassing it in a number of scenarios, leaving Go and Python far behind. We break down the key numbers and conclusions.

Testing Methodology

The tests were conducted on identical hardware: Intel Xeon 8th generation, 64 GB RAM, NVMe SSD. Three main parameters were measured:

• Throughput (requests per second for an HTTP server);
• Memory consumption (RSS in MB under average load);
• Execution time for CPU-intensive tasks (sorting 10 million elements, parsing 1 GB JSON).

Results: Rust vs C++

In tasks that do not require manual memory management (e.g., JSON parsing), Rust showed 12-15% higher throughput than C++ (Clang 18 compiler). The reason is LLVM optimization combined with borrow checker guarantees, which allow the compiler to more aggressively inline and reorder code. In CPU tasks, Rust lagged behind C++ by only 3-5%, but consumed 20% less memory due to the absence of virtual tables in typical code.

Rust vs Go: the battle for memory

Go has traditionally been known for its simplicity, but in 2025, its main drawback — the garbage collector — has become critical for high-load systems. In the HTTP server test, Rust handled 1.2 million requests/sec compared to 480 thousand for Go (a 2.5x difference). Memory consumption: Rust — 45 MB, Go — 210 MB under the same load. Go only wins in compilation time (0.8 sec vs 12 sec for Rust).

Rust vs Python: the score is not in favor of scripts

Python (CPython) remains the leader in development speed, but in benchmarks it loses to Rust by 50-80 times in CPU performance. Even with libraries like NumPy and Numba, Rust is 5-10 times faster on pure algorithms. For high-load microservices, Python is inapplicable — Rust is the only alternative here.

Conclusions: is it worth learning Rust in 2025?

The benchmarks unequivocally confirm: Rust is the best choice for systems where speed, memory, and safety are critical. It surpasses C++ in convenience and safety, and Go and Python in performance. The only downside is the steep learning curve. However, for projects in FinTech, IoT, game engines, and network protocols, Rust is becoming the de facto standard.

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