OK, so the PDP-11 was a minicomputer, so what? Although it's difficult to compare things from such different eras exactly, if you're using the SPEC benchmarks then the Pi 4 should come out between 10-30 times as fast as a PDP-11 on integer operations and at least 30 times as fast on floating point, and that's even assuming the PDP-11 in question had the optional (and expensive) floating point board installed.
Biting the hand that feeds IT
