I'm not an expert, but from what I have been reading these "node names" have been pretty much decoupled from actual trace dimensions for a few years already. So

I'm not an expert, but from what I have been reading these "node names" have been pretty much decoupled from actual trace dimensions for a few years already. So I wouldn't be surprised to find out that most of the structures are in fact bigger than 3nm. To quote Wikipedia (on the 5nm process!): The term "5 nanometer" has no relation to any actual physical feature (such as gate length, metal pitch or gate pitch) of the transistors. It is a commercial or marketing term used by the chip fabrication industry to refer to a new, improved generation of silicon semiconductor chips in terms of increased transistor density, increased speed and reduced power consumption.