Nodes are hard to compare, and pretty much everybody agrees that what Intel called 14nm is roughly equivalent to other foundries' 10nm. (Maybe some of the 10nm

Nodes are hard to compare, and pretty much everybody agrees that what Intel called 14nm is roughly equivalent to other foundries' 10nm. (Maybe some of the 10nm processes are 10 or 15% more dense than Intel's 14, but nothing like the 2x we should have with more straightforward comparisons) And that's not even the end of the story. Intel 14nm++ is expected to be slightly LESS dense than their previous 14nm and 14nm+, to alleviate some of the problems that start to appear with such small nodes. Let's not even talk about EUV processes, that will be needed to go under 7nm (IIRC). We are not even sure they can be used for mass production. Probably they can, but there are still a lot of things to fix in this area. 10 years ago it was expected to be in mass prod today or even 1 or 2 year ago - and it is still very far from ready. Fur sure they will be crazy expensive too, so tons of chip will continue to be produced on processes with bigger nodes. So talking about 3nm now is bound to not be extremely precise, given all the unknown. Its dubious it will come as soon as 2022. It will be crazy expensive, but we already knew that.