The Corsair A70
In Figure 4, you see the front of the heatsink. The design is very conservative, simple, and very efficient, as we can tell by the coolers using this design we tested so far.
In Figure 5, you see the side of the heatsink, as well as the four copper heatpipes.
In Figure 6, you can check the top of the cooler, which has a black fin with the manufacturer logo.