It does not refer to the physical size of any element or feature of the chips.
It's the marketing department's claim about what you'd have had to do to achieve "equivalent performance" using geometries (and probably other things) that are no longer used. Or to put it another way it's completely untethered from reality in every way.
It's the marketing department's claim about what you'd have had to do to achieve "equivalent performance" using geometries (and probably other things) that are no longer used. Or to put it another way it's completely untethered from reality in every way.