The Noctua NH-D15 heatpipe tower CPU cooler is a beast that is ready to tame the heat from any of today's high powered processors. With six heatpipes, two towers of cooling fins, and the ability to support a pair of 140mm fans, undersized is not a word that could describe the NH-D15. In testing, it was able to outperform other high quality heatpipe coolers, including two from Noctua which are also highly respected for their performance.