No they don't. It means that the numbers jockeys got out and crafted some comparisons that are to the advantage of Intel. Battery life is a whole different ballgame where factors such as display power consumption are more dominant. I can say with high certainty that this alone will not increase your battery life by 2x.
Atleast in paper, Intel's strategy is right. Intel can win the war or speed performance with ARM on 30$ mobile CPU business. But by winning that war, it will lose its main revenue source ie the 300$ desktop/laptop CPU business. So they dont want to make better performing(in speed) than ARM) lest people would switch over entirely to the mobile platform ditching the desktop/notebook platform. But to keep ARM on its toes, they are doubling down their efforts on power. By making a mobile CPU with half the power than that of ARM, Intel can keep ARM focus more on power reduction, than performance(speed) improvements. Which will keep the performance gap between mobile CPUs and desktop CPUs at a safe distance, that people will feel the need for buying an extra notebook/desktop apart from their mobile device. ie keep its main revenue source safe. :)
I assume Intel with its new CEO might have pushed the Sales guys and the Dev teams as well.
Hope it turns a new page for intel beyond this +ve sounding article.
just curious what happened to FD-SOI / FinFet debates?