The Noctua NF-A12x25 PWM was among the first fans I have tested my Long Win LW-9266 Fan PQ performance measurement apparatus so I decided to re-test it and compare it with more fans, and also conduct a frequency analysis.
Noctua is probably the most popular brand regarding cooling solutions since it focuses on this territory alone. These guys don’t make chassis, PSUs, or other PC parts, only cooling solutions, so it doesn’t surprise me that they raised the bar so high! For over a decade now, Noctua has set the standards in air cooling, first with the NH-D14 and not with the NH-D15, and the same goes for its fans. In this review, I will use a Longwin fan testing machine to evaluate the NF-A12x25 PWM.
At the current price of $33, the Noctua NF-A12x25 PWM will have a tough time against the similar-priced Cooler Master Mobius 120 OC and the Phanteks T30-120 fans. The former comes with a lifetime warranty (!), while the latter is the performance king in my normalized noise charts. None of the abovementioned fans has RGB lighting, so if you are into fancy lights, you should look elsewhere, e.g., the Corsair AF120 RGB Elite.
The NF-A12x25 uses Noctua’s self-stabilizing oil-pressure bearing (SSO-Bearing), an upgraded hydrodynamic bearing featuring an additional magnet to stabilize the rotor axis and decrease friction. According to Noctua, this fan can be used for all applications, cooling AIO radiators and heatsinks, or as a case fan. Its strong point is its high performance in the mid-fan-speed section, where it achieves high static pressure and airflow.