There's a comment here: https://blog.erlang.org/the-road-to-the-jit/#maturing-the-ne...

I feel like I saw graphs in one of the presentations, but I don't recall which, or if it was about the final iteration of the JIT.

I suspect HiPE would beat the JIT on tight loops, but the JIT wins in general because of the lack of switching cost between native and interpreted code.