Initial Benchmarks Of OpenBSD 6.4, DragonFlyBSD 5.3, FreeBSD vs. Linux
The dcraw image conversion test was interesting given how fast Clear Linux performed while the BSDs all performed slower than the other Linux distributions.
FreeBSD 11.2 managed to have a narrow victory over OpenBSD 6.4 and Clear Linux with the single-threaded LAME MP3 encoding benchmark.
OpenSSL tends to be well-tuned on all platforms these days so there isn't much of a difference.