Intel boasted of a power-saving technology that will put power not being used by idle processor cores to work, speeding up those cores that are grunting through heavy-duty tasks.

FORBES: AMD's Spin Room

In previous work, they demonstrated that phones in idle listening mode expend roughly the same amount of power as they do when they're fully awake.

ENGADGET: New 'subconscious mode' could improve smartphone battery life, supress your WiFi id