Today we are going to introduce to you two great competitors in the CPU heatpipe cooling segment: the NH-U9 and NH-U12 from the Austrian Noctua. These babies are ready to cope with the huge amount of heat produced by overclocked processors. They boast an impressively high CPU cooling efficiency with little dependence on the fan speed which is an indication of an ingenious and well-implemented design of the heatsinks. Read more in our detailed review!