Beitrag Python 3.14 vs Python 3.15 – performance testing

Python 3.14 vs Python 3.15 – performance testing Performance benchmarks on AMD and Intel systems reveal that Python 3.15 is overall ~1.45× faster than Python 3.14. While massive speedups in Base32, Ascii85, and Base85 C-rewrite encoding operations heavily skew the average, most other workloads show a more modest performance improvement of around 1.20×. https://en.lewoniewski.info/2026/python-3-14-vs-python-3-15-performance-testing/