What matters is that performance per watt, AMD is a much better choice and Intel is feeling it. Intel has a very skilled team in the competitive analysis group which noticed that Zen might give it many headaches in the PC market.
It was top management which decided to ignore the threat. It got the right intell-igence but it decided not to react. Betting the 100 million unit desktop PC market on speculations that its competitor will fail again, doesn’t sound like a good strategy.