As you can see in the above charts the coolers from Noctua proved to be very good performers, the NH-U9 managed to keep up with the XP120 using a slow spinning 92mm fan while the XP 120 used the bigger (more powerful) 120mm fan. The NH-U12 was even more impressive, outperforming the XP 120 by 5° using the same fan is outstanding!



Link: Driver Heaven