Re: As far as the pipeline, hyperpipelining was the wave of the future. Until it wasn't.
It was a legitimate way to derive performance; again, "at the time". Of course, the power wall became a big problem, and the "wave of the future" is now power efficient cores. Intel took the risk with something brand new and different, but in the end, mediocre "evolution" won out over "revolution". That's a pretty common occurrence in the technology industry. Better to go tried and true than to experiment with something different and fail. AMD took the safe approach and they succeeded. And the people who laud technology "innovation" are usually the ones who applaud AMD's mediocrity.