1. Nobody ever stated that. If anything, it was all of the Intel and AMD users who created that straw man. "See, it's slower than a 64-core Threadripper at 280 watts". No kidding.
2. The M1 is clearly not a desktop-class SoC nor was it intended to be. However, it's more than competitive with many desktop x86 processors that run faster and hotter while consuming much more power.
3. As a first attempt, the M1’s performance per watt is very impressive. Obviously the 5nm process helps but it's never one thing with Apple: it's the unified memory, the 8 instruction decoders (AMD and Intel max out at 4), and the integration of the 16-core Neural Engine, among other features.
