At the hardware level, the difference is that while stepping B0 is based on the Raptor Lake generation (produced by the
Intel 7 Ultra process) and is built on a larger core with physically 8 P and 16 E cores, stepping C0 has a smaller “Alder Lake” silicon chip (
Intel 7), which has the same number of (8) P cores, but with half the number (8) of E cores.