Overclockers Online has posted a new review on the Noctua NH-U9 and NH-U12

So what is the final verdict? Performance, sound level, compatibility, and installation process are among some of the most important factors involved with a heatsink. Both of these vertical style heatsinks by Noctua excelled in these areas, anything short of spectacular would be an understatement.

Noctua NH-U9 and NH-U12 Review