According to the specs, the original 80486 could read or write 16 bits per clock. That's probably on a DX - on a DX2 it's probably 2 clocks. And that's with i

According to the specs, the original 80486 could read or write 16 bits per clock. That's probably on a DX - on a DX2 it's probably 2 clocks. And that's with in order execution - the bus was running at the same frequency as the CPU.