Since it's the still the same driver addressing the same hardware it should be identical.

...it's a tape drive, they have mechanically fixed speeds. Why do you ask?

He wrote “The tradeoff, of course, is that the data rate is limited by the speed of the floppy controller,”. Implying it could be faster by switching the controller. I guess tape drives could in theory have way way faster transfer speeds, as other tape drives does.