Do you know of any performance comparisons vs. PyPy? I find it works extremely well as a drop-in replacement for CPython when only the built-in modules are need

Do you know of any performance comparisons vs. PyPy? I find it works extremely well as a drop-in replacement for CPython when only the built-in modules are needed, which should generally hold for awk-like use cases. Yet some brief searching doesn't seem to yield any numbers.