The Xigmatek Praeton
Figure 4 illustrates the front of the cooler. Here you can see the slimness of the horizontal heatsink as well as the tips of the four heatpipes.
Figure 5 reveals the side of the cooler. Notice the wire clip that holds the fan in place.
In Figure 6, you can see the curves of the 6 mm heatpipes.
Figure 7 shows the top of the cooler with the 90 mm fan.