I recently bought a Lenovo Legion 5 (4800H, 512GB, 16GB, 1660ti) for around $1200 after checking the 4700u ideapad. This was before the Ryzen 5000 series launch, so I suppose the Legion 5 is around $900 mark these days.
Many OEMs don't really give a good thermal headroom for the AMD processors, and only Lenovo seems to have done it right.
Lenovo's stock management sucks though. There were no stock for many days, and had to go unorthodox methods to get my hands on a unit.
Keep in mind only four of those cores on the M1 mac are performance cores. A M1 Mac with 8 performance cores would blow that thing out of the water based on how close they already are.
It seems incredibly likely that such a product would be reserved for the highest end models for example the MacBook Pro and Mac Pro starting at 2400 and 6k respectively and would be properly compared to high end laptops that like the example don't exist yet.
It's nice to see the CPU space heating up in recent years.