It is not just the complexity but also the question of economics. In general Intel on the server side is under pressure by specialized chips. Incremental spend

It is not just the complexity but also the question of economics. In general Intel on the server side is under pressure by specialized chips. Incremental spend will rather go into specialized silicon, SSDs and RAM than into CPU where it delivers more bang for the buck. On the PC side people are looking for battery life - something Intel lags. Both Apple and Microsoft are eying the ARM universe causing Intel to recently fire a patent threat in the direction of Redmond and Qualcom. From a volume perspective Intel is big but ARM with both mobile and IoT behind it has the momentum. The tick-tock has slowed. New generations are becoming harder to manufacture. Moore's law ending will assert itself in economic terms. Complexity is not your friend when the volume is increasing elsewhere and adding value becomes harder.