On the front we can see that the TwinW places heatpipes close to the middle of the cooling fins. On the other side the pipes are spaced further apart.
The fan is placed in the middle of the cooling fins allowing the TwinW to utilize the push and pull flow of the fan to cool the processor.
From this angle we see the heatpipes spaced further apart allowing the fins to work more effectively.
The Auras TwinW uses a 4-pin PWM power cable that allows the motherboard BIOS to control the fan by varying the voltage going to the fan.
From the top we get a better view of the heatpipe arrangement.
The contact area is just shy of a mirror finish. This 2.5mm copper base has a better finish then most of the coolers we have seen in recent weeks.