Advanced Micro Devices Inc (AMD)

[chipguy]

beating Intel by a big margin in processor speed would be foolish as it would not be maximising their return in investment.

This explanation never gained much traction here among the
true believers when it was suggested for the long frequency
plateau Northwood experienced. But if it can explain any
imminent doldrums in AMD's performance vs time curve I
am sure it will enjoy a much more receptive audience. :-P