- Review -

11.10.2015 TruePCGaming.com

Comparing these figures to the NH-L9i shows a huge margin of 22C under heavy computational stress. Overclocking potential on the NH-L9i was virtually non-existent and the majority of tests failed when adding even small increments of voltage. However, the NH-L9x65 fares noticeably better due to the 65mm total height and 51mm heatsink size. I set a moderate voltage limit of 1.21v and managed to eke out a 4.1GHz overclock under a suitable 24/7 temperature threshold. Of course, the silicon lottery means your mileage may vary and my CPU isn’t the best overclocker and requires 1.3v to attain clock speeds beyond 4.4GHz.

"Noctua has always been at the forefront of cooling prowess and engineering new methods to enhance the size to performance ratio. While the NH-L9x65 is larger and less versatile, there’s no denying the impeccable advancements in heat dissipation. The performance numbers are stunning and it’s crystal clear that the NH-L9x65 is a pioneering product and the best cooler I’ve encountered for use in exceptionally small cases." (John Williamson, TruePCGaming.com)