Instead, orcas hunt much more similarly to humans. They speak to each other, coordinate special roles, teach while they're hunting, and they have highly coordinated and practiced attacks. The way they kill whales is usually quite brutal, because it normally requires tiring out the whales first and then start in with bites. Although orcas are ridiculously powerful (their jaw strength is basically immeasurable compared to land animals), they can still be seriously injured by large whales'. So, orcas essentially exhaust the whales and then ram and nick at them until dealing some final blows or drown the whale. During these hunts, the orcas will switch in and out so as to not tire themselves out. As an aside, there have been instances of people seeing humpbacks intervene orca attacks on both humpbacks and other whale species.
I would not be surprised in the least if orcas are as intelligent or more so than humans, if such a thing could be determined. Either way, they are seriously intelligent, and their physical capabilities are second to none. They are awe inspiring animals in every way. And yet, we keep them in prisons.