From the comments section of the article: > Because there are so many power sensitive applications where ARMs are used, much has been invested in power minimiz

From the comments section of the article: > Because there are so many power sensitive applications where ARMs are used, much has been invested in power minimization and management and they do very well. It’s easy to get remarkably better power consumption with an ARM part. But, in this particular case, our focus was more on server-side price/performance and, with that focus, our power consumption isn’t really materially better the alternatives.