Mike Tyson said: "Everyone has a plan until they get punched in the face." When it comes to semiconductors I'd say: "Everyone wants to make their own chips until they have to do so at scale". (Doesn't roll of the tounge as well!) There is definitely a threat from Apple, Amazon, Google and especially China that will put Intel's market share in target distance, but making chips at scale is incredibly difficult. It's ha…
1. TSMC (also GlobalFoundries) is fab only. They design the node for the process and way to fabricate it.
2. Then ARM joins with TSMC to develop the high performance microarchitecture for their processor design for TSMC's process.
3. Then ARM licenses the microarchitecture designed for the new processes to Amazon, Apple, Qualcomm who develop their own variants. Most of the the prosessor microarchitecture is the same for the same manufacturing process.
As a result, costs are shared for large degree. Intel may still some scale advantages from integrated approach but not as much as you might think.