The closest in the next few months is the new Zen 3 based APUs that AMD is announcing at CES which is in Mid January. Zen 3 is reasonably competitive with the

The closest in the next few months is the new Zen 3 based APUs that AMD is announcing at CES which is in Mid January. Zen 3 is reasonably competitive with the M1 on a per core basis. Not quite the single thread perf, but pretty competitive on multicore throughput. As a rough estimate I'd expect the AMD chips to be within 10-20%, and you'll be able to run Windows or Linux on them.