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Last I checked they weren't really any quieter than their competitors at the same airflow and pressure (which is a little subjective because your curve will never match perfectly). They do have a really low number on their specs because they have a really low max RPM, but that's not really relevant when you can just lower the speed of other fans.

They're still really good fans, but a lot of this is just marketing.

At max power the Noctua NF-A12x25 has 56 CFM and 2.3 mmAq for 31dBA [1]. At 70% the Artic A12 Pro is 56 CFM, 4.3 mmAq, and 31dBA [2]. At 60% the Asus ProArt PF120 is 61 CFM, 2.6 mmAq, and 30 dBA [3].

Note that the ProArt is a bit thicker (25 vs 30 mm) and all these dBA numbers are almost certainly unobstructed airflow. The Noctua is certainly good, but it's literally over 5× the price of the Artic.

[1]: https://www.cybenetics.com/evaluations/fans/4/

[2]: https://www.cybenetics.com/evaluations/fans/175/

[3]: https://www.cybenetics.com/evaluations/fans/229/

by sho_hn7 hours ago|

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On the other hand, if I recall right the internet is rife with customer reports of the Arctic fans having noose spikes / unpleasant hums or resonances at certain RPMs. Lots of people using config tuning to avoid it.

I ended up buying Pure Wings as mentioned. Also much cheaper than Noctua and seemingly not having those issues.

by kenhwang7 hours ago|

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It's funny because I replaced my NF-A14 and NF-F12 because they had hums at certain rpms when used on radiators, and neither the Arctics before them, nor the BeQuiets that replaced them, had that issue.

by techpression8 hours ago|

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Noctua is working at the last five percentages of performance AND lifespan. They want their fans to perform (and sound) identical ten years later with daily use. Most people change fans far earlier than that.

It’s kind of refreshing to see really.

by adrian_b7 hours ago|

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Indeed, the main reason why I choose Noctua fans from those that are silent enough and efficient enough is because I trust their reliability.

I still have computers from 2017, with Kaby Lake CPUs, which have been used as servers and in which the Noctua fans work as well as in the first day. Prior to that I had some computers with Noctua fans that had been used for more than a decade without fan problems, and which were upgraded or replaced for reasons unrelated to fans.

Thus the good experience that I had with the reliability of Noctua fans, coupled with some bad experiences with cheaper fans, which had to be replaced prematurely, make me reluctant to experiment now with other brands, which might have the same performance when new, but I could learn about their reliability only after a few years.