Good catch, I misread that. Clock frequency is ultimately dependent on the longest path of propagation, so it does depend on the circuit, or CPU. I'd be intere

Good catch, I misread that. Clock frequency is ultimately dependent on the longest path of propagation, so it does depend on the circuit, or CPU. I'd be interested to know from any experts whether there is potential for fundamentally higher switching speed in super conducting circuits. As you suggest, they are not necessarily directly indicative of the clock speed of a specific real world circuit or CPU, especially considering super conductors don't even use transistors and need to use different building blocks for equivalent logic... but as a rough indication based on order of magnitude of switching speed would be interesting.