It's quite close to the process AMD are on but not 5nm that apple use. A lot of M1's advantage is in terms of density. That's why they were theoretically able

It's quite close to the process AMD are on but not 5nm that apple use. A lot of M1's advantage is in terms of density. That's why they were theoretically able to make such an absolutely enormous processor and keep it cool. Making that theory work in practice came from decades of low power semi experience. They're extremely good chip designers.