Advertised Vs. Real Performance
This is probably the most crucial page, showing how accurate the data provided by the manufacturers/brands on their products is. Since nobody so far could verify these numbers, it was an open field for every brand to declare whatever it wanted, but this stops now. I should also note that I strictly follow the specific guidelines (ISO7779: 2018) for taking noise measurements in information technology and telecommunications equipment.
In the table below, anything in Red means bad news, while the Blue fonts are good!
| Performance Metric | Advertised Performance | Real Performance | Difference |
|---|---|---|---|
| Max Speed (RPM) | 2000 | 2134 | +6.7% |
| Max Input Current (A) | 0.14 | 0.12 | -14.29% |
| Max Power (W) | 1.68 | 1.50 | -10.71% |
| Qmax (CFM) | 60.09 | 56.11 | -6.62% |
| Pmax (mmAq) | 2.34 | 2.26 | -3.42% |
| Max Noise Level (dBA) | 22.6 | 31.3 | +8.7 dBA |
Speed is higher than the advertised and power consumption is lower. The airflow is a bit off, not by much compared to other fans, though, and static pressure is close to the advertised value. Only noise output at full speed is far away, but I don’t know how Noctua measures noise in its products.
Hi! Thanks for such a detailed review!
I agree, the hero of the review is far from the most productive fan in terms of noise normalization, but its quality is… a separate level
As a person for whom complete noiselessness of assembly is a priority, I cannot accept some models following the NF-A12x25 in the list of the best, simply because, based on personal experience and numerous reviews, after a while very unusual sounds at low rpm (~800-1000 rpm) begin to emanate from them
Therefore, in my personal top, I would give him a solid 2nd place in terms of a combination of factors
The rest is a matter of compatibility of the Phankeks T30 with your build. 😁
Suggestion: it would be cool to add fan testing for near-silent operation, 10 dBa, for example, there are probably a lot of silence maniacs in their builds 🙃
Also, please test the NF-A14 (aka A15 for the NH-D15 cooler)
Thanks!
Happy New Year to your team! 🎄
Happy New Year!
Unfortunately, I cannot do torture testing in noise measurements, for now at least.
This Noctua fan has sky-high quality and its bearing is among the best in today’s market, but since performance is of the highest priority, it needs improvements there.
In the way I test, even 20 dBA is very low, since I measure the fans from 1 meter away. I also have readings for 15 dBA.