Since the first thing I thought of when I saw this Noctua cooler is that it was a copper version of the Thermalright Ultra-120, I
figured that I would give you some comparison shots. Standing next to each other, you can see that the Noctua stands a bit shorter
than the Thermalright and that the fins are a bit closer to the base as well.
From the side, you can see that Noctua decided to go with a flat fin design as compared to the Ultra-120's twisted version.
At the bottom you can see the differences in bases and aluminum heat pipes compared to the copper of the NH-U12. At the top you
can see difference in approach to the fin's edge design. The Ultra-120 has a smooth concaved shape.