Noctua NF-A12x25 Fan Review

👤by Matthew Hodgson Comments 📅17-05-18
Acoustic Results
We have recently made changes to our cooling department and the associated testing methodology, so please note that the number of results shown below will increase over time as we add additional products. We hope that these results will appear clearer to the majority of our readership and look forward to building upon the baselines that you see below.

Using a Noctua NA-FC1 fan control unit, all fans were set to 1,000 RPM which is generally considered a good balance between air flow and perceived acoustic quality. Whilst some fans may run at slower speeds, this is considered to be our baseline reading. Please also note that in the case of certain models, the NF-A20 for example, their maximum speed is actually beneath this threshold meaning their results will appear only in the subsequent ‘Maximum RPM’ test results. The distance tested at is 20cm from the fan, in a room with an ambient noise level of 25dB, and where the individual acoustic results are an average level over the set testing period.

As is evident from the above graph, at 1000 RPM, the Noctua is quieter than anything else we've tested so far, including the already impressive ML120 fans from Corsair. The airflow at 1000 RPM is also considerable, meaning you could easily run the fans at this level without worrying about a lack of airflow or air pressure.

We then ramp the fan up to 100%, with the use of a Noctua NA-FC1 fan control unit. We measured the fan between 2000 and 2020 RPM during the testing, but the fan remained quiet, with a distinctively nice tone, something that wouldn't be annoying at all.

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