Does anyone else think that ARM could actually be a bigger threat to AMD then Intel? Intel's niche is mainstream performance computing. ARM's is mobile devices. ARM will gradually scale up in performance, while Intel will scale down for mobile. Where does that leave AMD? Somewhere in the middle where it will be crushed on two fronts? Or perhaps HPC with its emphasis on extreme parallel processing? On that front, AMD would have compete with IBM's Power architecture.
AMD unable to compete with Intel on raw processing power is trying to change the game by focusing on integration between CPU and GPU. Well Nvidia is doing the same, but doing it with ARM. The Tegra's got multiple, low power ARM cores paired with Nvidia GPU technology. As ARM scales up, what will AMD be left with?
For now, ARM and x86 are kept separated by desktop vs mobile operating systems... but just wait... when Microsoft releases Windows and Office for ARM, and Apple starts putting ARM into Macbooks...