When Alder Lake finally made a sizable jump, I looked at decades of old tests I'd done along the way with CPUs and tried to bridge them together reasonably.
Between IPC (~50 to 100-fold improvement) and clock speed increases (1000-fold alone), I estimated that single-thread performance has increased on the order of 50,000x - 100,000x since the 4.77 MHz 8088.
In human terms this is like one minute compared to one month!