It will likely feature some fast running cores for power-intensive tasks, some slightly slower cores for normal tasks, and a much slower dual core setup for low intensity tasks.
These devices allow consumers to turn off power-intensive facilities, such as air conditioning, water or heating, for short periods when demand on the grid is high or supply is low.
Maintaining two active radios in a single handset is a power-intensive task, and some users have complained about lack of battery endurance in the ic402/ic502 models.