They do take more than cycle (how many depend on how you count), but they are fully pipelined so they can start executing an ( independent) instruction before a

They do take more than cycle (how many depend on how you count), but they are fully pipelined so they can start executing an ( independent) instruction before a previous one has finished. They are also superscalar so they have multiple (pipelined) units that can start executing instructions at the same time.