Intel just needs to not be using their podunk 10nm lithography they've been touting for the past 5 years or so. They plan to beat Apple's density by 2024, which will raise some interesting questions about how much efficiency they can recoup at this point. I don't think it's fair to claim anyone as the victor yet, we'll simply have to wait and see if the reports of x86's death were grossly overstated or not.