Effectively the M1 CPUs couple a Raspberry 2 with a Raspberry 4. Balancing what runs on what cores you can shut off the Raspberry 4 when you don't need it, whi

Effectively the M1 CPUs couple a Raspberry 2 with a Raspberry 4. Balancing what runs on what cores you can shut off the Raspberry 4 when you don't need it, which is most of the time as the GPU carries a heavy load. Try watching a MP4 movie on your iPhone 4 and you'll see that allready back then all the heavy lifting was taken off the CPU = battery barely drained at all after 1 hour of video. This is much less magic than the 5nm that basically offer very little Gflops/W benefit over the Raspberry 4 28nm.