OTOH, it's a lot easier to copy someone else's pioneering work, so I'd expect things to progress more quickly for Intel.
Dan
AMD should well know, since they "copied" Motorola's Copper Process. All they had to do was implement it, and look how long it took them, from Q2/99 (first silicon) until April 2000 (samples), looks like 12 months, vs Intel on the other hand, who did not copy Motorola, developed their own Cu Process, and went from first silicon, to production in 5 months.
It SHOULD have been easier for AMD, but it looks like it wasn't.
Semi |