The following system was used to test the fans:
– Processor: Intel i5 6600K @ 3.9 GHz and overclocked to 4.5 GHz
– Motherboard: ASRock Fatal1ty Z270 Professional Gaming i7
– RAM: Ballistix Tactical Tracer 16GB DDR4 @ 2666MHz
– GPU: GeForce GTX 1070 Founder’s Edition
– SSD: Crucial MX500GB
– HDD: WD 1 TB Blue
– CPU Cooler: SilverStone Tundra TD02-E
– PSU: Seasonic Snow Silent 750W Platinum
– Case: Phanteks Enthoo Luxe White
– Thermal compound: Arctic Cooling MX-4
The 120mm fans has been tested using a 240mm CPU liquid cooler, the SilverStone TD02-E at max. RPM.
The 140mm fans has been tested using a 280mm CPU liquid cooler, the NZXT Kraken X61 at max. RPM.
120mm Fan Performance
The noise level was measured at three different distances from the fans (10cm, 20cm, 30cm.) the noise was measured with a margin of error of ± 5 db.
The Noctua NF-A12x25 PWM is a very good fan, and the research and development put into it makes it a great choice for both radiator and heatsink usage. The fan is available in three versions: U.L.N, F.L.X and PWM, all with the same price of 29,99 US Dollars or Eur. The performance is very good, the NF-A12x25 PWM is the second top fan in the performance chart, being overtaken by a single fan which happens to be a different Noctua fan. In terms of build quality this fan is above most models available on the market, with flawless edges and good weight distribution in the case of the impellers.
The accessory bundle is extensive and includes plenty of additional products for the fan, a low noise adapter, a cable splitter, cable extension and even a full rubber frame.
In conclusion, with the NF-A12x25 PWM, Noctua sets a new benchmark for performance and build quality. The static pressure and airflow are great and the noise generated by the fan peaked at 34db, with the fan spinning at 2000RPM. The accessory bundle is extensive and helps justify the 30 US Dollar price tag of the fan.