Noctua NH-U12S Heatpipe HSF
 

The Gang at Overclockers Club have the Noctua NH-U12S heatpipe HSF strapped to the test bench today for a little review action. For comparison purposes, you can see our evaluation here. The bottom line is that cooling performance comes with a price; always has and always will. Comparing the NH-U12S to other top-level heat sinks and taking the thickness of the fin array into account, shows that it performs above its size in all cases. A truly impressive feat at only 45mm thick.

http://www.hardocp.com/news/2013/12/..._heatpipe_hsf/