They used to say that a 060 @ 50 MHz was as fast as a P1-133 MHz.
I agree to a degree. From my own experience in raw performance a 060 @ 50 MHz was about as fast a P1 @ 100 to 150 MHz
When I had an A4000 with CV643D card I installed OS3.5 but the whole system felt slow. So I reinstalled OS 3.1 and run my workbench in 4 colors, that was something I could call speedy!