Noctua NH-L9i-17xx
CPU Coolers

NH-L9i-17xx

Noctua

Released Nov 1, 2014 · Analysis updated Mar 4, 2026

Compact CPU cooler with a full copper base and 6mm heatpipes for quiet, efficient cooling. The Noctua NH-L9i-17xx scores 79/100 based on 4 expert reviews in the cpu coolers category. Coverage includes reviews from Hwcooling, Funkykit, Aphnetworks, and Tomshardware.

Critic Score

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79

based on 4 expert reviews

HwcoolingFunkykitAphnetworksTomshardware

Low confidence · only 4 reviews

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Pros

  • Premium build quality with full copper base and 6 mm heatpipes(2)
  • Quiet operation(2)
  • Compact size(2)

Cons

No cons extracted yet

4 Expert Reviews

92
Apr 8, 2022

The Noctua NH-L9i-17xx is a masterclass in compact cooling engineering—proving that big performance doesn't require big size with its 37mm profile and exceptional cooling efficiency.

85
Mar 9, 2022

The Noctua NH-L9i-17xx coolers perform surprisingly well with the i5-12600K, handling the CPU effectively in most scenarios despite some throttling during AVX/AVX2 workloads.

75

The Noctua NH-L9i-17xx is a low-profile CPU cooler that can fit anywhere and cool more than what its size suggests.

65
Nov 19, 2014

The Noctua NH-L9i is a quiet, high-quality sub-two-inch Mini-ITX air cooler with a price tag to match, but our samples didn't live up to the high expectations that Noctua has set in air cooling.