It's easy to forget how much innovation divergence was happening in the early 70s. Up till the late nineties we speculated that ISAs other than x86 (spec. RISC designs) would win in the end.
Imagine these 8 bitters were mostly hardwired, with less than a million transistors.
A 486 already had over a million transistors. These are in the thousands.
Way less than a million! I believe usually in the order of thousands.