Not much seems to be happening on the performance front, but Intel can't charge quasi-monopoly prices anymore. They started to sell 6-core desktop CPUs at the same price that they were selling 4-cores for... dunno, 10 years? In servers, Epyc is applying the price pressure, and it actually has some performance advantages over Intel's offerings (more cores, more PCIe lanes).
How is a 50% increase in core counts "not much on the performance front"? Intel used to push out yearly 5% IPC increases + 5% clock rate increases before AMD released Zen.
