Does it underclock/burst?
No idea how reliable it is on battery consumption, but the latest Intel chips, running on mobile, are suppost to ramp up/down with workload, and get compute done quickly, then idle back down to a lower powerstate. If I've understood it right.
So can these chips do likewise? Idle/sleep cores, lower speed/power draw between user/wake calls?
Biting the hand that feeds IT
