I really don't need the preaching. I wanted a straight answer.
Au contraire. You got a rather information-packed answer that is as straight as possible, dosed up with a bit of good-natured joshing. You now know:
Process-cycling Unix Threads manipulation Windows FP Arithmetic Depends on CPU, not OS Graphics Display Depends on graphics card, not OSAnd you know that to gauge other subsystems you will have to write code and see.
Relax a little, would ya?! The fact that you get a cheeky answer doesn't mean you're not welcome.