Noctua’s highly anticipated second-gen NF-A12x25 G2 120mm fans hit retail at $34.90 — redesigned fan blades and hub boost cooling performance | Tom's Hardware
According to the company, the new NF-A12x25 G2 fans can be used in a range of scenarios, including general case ventilation and more demanding tasks, such as cooling heatsinks or water cooling radiators. In internal testing, Noctua reports that the G2 model performed 3.5°C better than the ... According to the company, the new NF-A12x25 G2 fans can be used in a range of scenarios, including general case ventilation and more demanding tasks, such as cooling heatsinks or water cooling radiators. In internal testing, Noctua reports that the G2 model performed 3.5°C better than the original NF-A12x25 at a 200W heat load on a 120x49 mm radiator, with both fans operating at similar noise levels.In case airflow scenarios, the G2 fan is said to deliver around 9% more airflow than its predecessor at the same pressure drop. Additionally, the updated model can operate approximately 1.5 to 3.5dB quieter in certain conditions while maintaining comparable thermal performance, particularly when used on radiators.It also had a large fan hub, for an extra strong motor, and made from a fibreglass-reinforced polymer that was tougher than regular PC fans — properties that Noctua also copied. Interesting to see that they have found how to improve on its shape.The charts in the article @thestryker linked in post #3 includes a "NS Gentle Typhoon D1225C" that does pretty well in their thin & thick radiator tests, but only once you go above the lowest noise levels.scottscholzpdx said:These are the monster cables of PC fans.You ought to check out the review linked in post #3. They performed noise normalized + max comparisons to over 60 other fans, in 6 different usage scenarios, measuring air speed, static pressure, vibration, and frequency distribution.
