- Review -
NH-L9a-AM5,NH-L9a-AM5 chromax.black
We have tested this cooler on AMD Ryzen 7 7700X. This cooler was able to sustain 4.69GHz clocks during a run of 30 minutes using CINEBENCH R23.2 (Multi-CPU). We can see that this cooler will let users use these CPU clocks above a base clock of 4.5GHz.
However, given its pattern, it may fall below 4.5GHz depending upon the run length and load. This improved when we used PBO with an 85°C thermal limit and efficiency curve adjustment of -30mV, as the cooler was able to keep the CPU at 5.01GHz under multi-core load. The cooler enabled the CPU to provide a continuous 5.40GHz boost clock under a single core load.
Noctua NH-L9a-AM5 easily handles the gaming load with a maximum temperature of 77°C coming from Cyberpunk 2077 at Ultra settings and 1080P resolution. Noctua is offering a 6-year warranty on this cooler. The price tag on this cooler is EUR 59.90 / USD 54.90. Yup, it is expensive, but it is worth it as well as per our testing.
"Noctua means business with their new low-profile cooler NH-L9a-AM5. This little beast has a height of 37mm, and this low-profile design is aimed at the AM5 platform. It has kept Ryzen 7 7700X well in check. It can do even better with PBO enabled. This cooler comes recommended by us." (Awais Khan, Tech4Gamers.com)
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