These are the years when Intel lost dominance, right? This article doesn't seem to show much insight as to why that happened or what caused the missteps.
Intel really lost dominance when 14nm stagnated. This article only goes up to that point.
About a year ago I looked into what practical benefits I'd gain if I upgraded the CPU and mobo to a more recent (but still used) spec from eBay. Using it mainly for retro game emulation and virtual pinball, I assessed single core performance and no CPU/mobo upgrade looked potentially compelling in real-world performance until at least 2020-ish - which is pretty crazy. Even then, one of the primary benefits would be access to NVME drives. It reminded me how much Intel under-performed and, more broadly, how the end of Moore's Law and Dennard Scaling combined around roughly 2010-ish to end the 30+ year 'Golden Era' of scaling that gave us computers which often roughly doubled performance across a broad range of applications which you could feel in everyday use - AND at >30% lower price - every three years or so.
Nowadays 8% to 15% performance uplift across mainstream applications at the same price is considered good and people are delighted if the performance is >15% OR if the price for the same performance drops >15%. If a generation delivers both >15% performance AND >15% lower price it would be stop-the-presses newsworthy. Kind of sad how our far our expectations have fallen compared to 1995-2005 when >30% perf at 50% at <50% price was good and ~double perf at around half price was "great deal, time to upgrade again boys!".