Power efficiency isn't actually the point on desktop. The point is that a Gracemont cluster is around the same size as a Golden Cove core, while being faster in

Power efficiency isn't actually the point on desktop. The point is that a Gracemont cluster is around the same size as a Golden Cove core, while being faster in multithreaded workloads. However, because they're slow at lightly threaded work you still need some really fast cores too. Because Gracemont is so small, a chip can pack more MT performance for the same price.