If you take a peak-performance-optimized design (the Intel CPU) and throttle it down to low power levels, it will be slower than a design optimized for low power (the Apple CPU).

"let's compare oranges to oranges"

That's impossible because Apple has bought up most of TSMC's 3nm production capacity. You could try to approximate by comparing Apple M4 Max against NVIDIA B300 but that'll be a very one-sided win for NVIDIA.