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Noctua’s NF-A12x25 G2 is game-changing, offering the quietest, most refined fan we’ve ever seen. In our testing, it delivered whisper-quiet performance and managed an impressively huge amount of airflow despite running at very low RPMs.
Managing such big airflow despite not needing to spin fast to accomplish it means it’s also not a very turbulent fan, which translates to chart-topping performance when installed on a radiator or behind an intake mesh. In fact, it’s the only fan we’ve tested thus far that ran quieter on a radiator than when suspended mid-air without any load.
In addition to pulling off airflow miracles, the NF-A12x25 also offers a seriously advanced internal hub, featuring Noctua’s refined, tried-and-tested SSO2 bearing, a new 3-phase etaPERF motor, and a new PWM controller with SupraTorque functionality. This sounds like a bunch of marketing talk, but after testing the fan, we can tell you with confidence that it has zero audible mechanical noise.
PC Gamer
Jacob Ridley•12/02/2026
“I've been waiting to test it myself since I first laid eyes on it at Computex in May, 2025, and it looks even better in a build befitting its majesty. The GB203 GPU is crying out for an overclock, and the headroom offered by this cooling solution is superb.”
“I've been waiting to test it myself since I first laid eyes on it at Computex in May, 2025, and it looks even better in a build befitting its majesty. The GB203 GPU is crying out for an overclock, and the headroom offered by this cooling solution is superb.”