Benchmarking ARM Processors: Graviton 4, Graviton 3 and Apple M2

The blog post discusses benchmarking ARM processors, specifically comparing the performance of the Graviton 4, Graviton 3, and Apple M2 chips. The Graviton 4, based on the Neoverse V2 design, is Amazon's latest ARM processor, showing improved performance over the Graviton 3. Tests reveal that the Graviton 4 can match the Apple M2's performance in URL parsing despite running at a lower frequency. However, in Unicode validation and JSON parsing benchmarks, the Apple M2 outperforms the Graviton 4, although the latter shows significant improvements over the Graviton 3. The Graviton 4 also demonstrates better performance in base64 encoding/decoding tasks compared to the Graviton 3 but falls behind the Apple M2. Number parsing benchmarks show similar trends. In memory-level parallelism tests, the Graviton 4 slightly outperforms the Graviton 3. Overall, while the Graviton 4 does not match the Apple M2 on a per-core basis, it represents a notable advancement over the Graviton 3, showcasing improved instruction retirement rates and overall performance gains.