RPM question

[AcampoDave]

Just wondering; does the amount of cylinders in an engine have any bearing on the rpms it turns? For instance: if the drive train was otherwise the same, would a 6 cylinder engine run at a different rpm than an 8 at the same speed? My initial thought is no because the final drive on a non o.d tranny (for instance) is 1 to1, and that should remain constant regardless of how may cylinders a motor has right? Funny that in 52 years of living I have never pondered this question before.