i7-4xxx sounds fine, but the U will kill it :/
Try to look for a modern dual core intel CPU (so mostly i5-4xxx) with as much power consumption as possible. If you want to wait for some months, maybe you'll find a good one with i5-6440HQ.
Try to look for a modern dual core intel CPU (so mostly i5-4xxx) with as much power consumption as possible. If you want to wait for some months, maybe you'll find a good one with i5-6440HQ.