Noctua NH-C12P heatsink review
 

Noctua does not fail to impress with their new NH-C12P. Focusing on mainly tower based heatsinks over the last couple of years, it is refreshing to see a potent down-draft design from Noctua. It provides an excellent holistic cooling solution without sacrificing much in the performance department. The airflow gaps are very functional and contributed to the NH-C12P reaching the top of our motherboard cooling charts.

http://icrontic.com/articles/noctua_nh-c12p