The numbers are almost pure marketing, these days. From https://en.wikipedia.org/wiki/7_nanometer#7_nm_process_nodes https://en.wikipedia.org/wiki/7_nanometer#

The numbers are almost pure marketing, these days. From https://en.wikipedia.org/wiki/7_nanometer#7_nm_process_nodes https://en.wikipedia.org/wiki/7_nanometer#7_nm_process_nodes > The naming of process nodes by different major manufacturers (TSMC, Intel, Samsung, GlobalFoundries) is partially marketing driven and not directly related to any measurable distance on a chip – for example TSMC's 7 nm node is similar in some key dimensions to Intel's 10 nm node.