The Waturbo uses a mag lev fan on the top that not only blows down on the aluminium fins of the heatsink, but also moves the pump inside the liquid reserver tank. It features a copper base that transfers heat up to the liquid at the core of the cooler.
The mag lev fan is supposed to reduce noise levels and the liquid core is designed to improve heat dissipation. Whether it really works well and satisfies hard core fans is another matter.
Link to Sunon site