> a Ryzen Zen 3 chip has a feature size of 7nm The node sizes used in marketing today haven't actually had any relation to feature size for at least 10 years.

> a Ryzen Zen 3 chip has a feature size of 7nm The node sizes used in marketing today haven't actually had any relation to feature size for at least 10 years. You can read some of the actual feature details for 7nm on wikipedia. https://en.wikipedia.org/wiki/7_nm_process#7_nm_process_nodes_and_process_offerings https://en.wikipedia.org/wiki/7_nm_process#7_nm_process_node... If "feature size" is the width of a fin, a 7nm feature will typically be ~15nm across and spaced ~15nm apart (ie the center of one transistor is 30nm away from the center of the transistor next to it). It's worth noting that the actual thickness of a transistor isn't strictly the most important factor. Which is why that wiki page shows fin pitch (the width of the transistor plus the space between transistors), because that's the metric that you get transistor density from.