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NF-S12 / NF-P12

In the design and development of axial fans, the three aerodynamic key parameters of airflow, pressure and noise play a major role. Usually, the goal is to achieve the amount of airflow and static pressure required by a specific application at the lowest possible noise emission. The design should hence provide the optimal balance of airflow, pressure and noise for a given application.

However, even in the field of PC cooling, each application has different requirements: Whereas CPU coolers with tighter fin-spacing require high static pressure, it's mostly the airflow to noise ratio that counts when it comes to case fans.

Common fans are usually designed to be all-round solutions with compromises in certain areas in order to achieve solid results in all typical applications.

Noctua, on the other hand, is following a two-fold approach with its S12 and P12 fan series in order to achieve optimal results at various applications: While the NF-S12B was optimized so as to provide a class-leading airflow to noise ratio and therefore makes for an excellent case fan, the NF-P12 was designed to produce high airflow and an outstanding amount of static pressure, which makes it perfect for use on CPU coolers and other high-impedance applications. The following illustration shows how this approach differs from common all-round solutions:

NF-S12B Blade Design


While the NF-S12B delivers less static pressure, it provides a better airflow/noise ratio. Therefore, it's perfectly suited for case ventilation as well as all applications which don't demand high static pressure and where maximum quietness is the first priority. The NF-P12 on the other hand provides a better pressure/noise ratio and should therefore be the first choice for all applications which demand high static pressure such as CPU cooling.

NF-S12B Blade Design


NF-S12B Blade Design


NF-S12B Blade Design


NF-S12B Blade Design


NF-S12B Blade Design




Links:
button  NF-P12 Nine Blade Design with Vortex-Control Notches
button  NF-S12B Blade Design with Bevelled Blade Tips
button  Which fan is right for me?




Noctua
16.09.2014 - Hardware.Info NH-U14S
Test verdict: "Misschien wel dé verrassing van deze test: hoe kan een koeler die slechts 8 centimeter diep is vrijwel net zo goed koelen als gevaartes als de Noctua NH-D15? Deze Noctua U14S staat qua koelprestaties in de top 4, neemt niet veel plek in en is ook nog redelijk stil." (Koen Crijns, Hardware.Info)
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15.09.2014 - BigBruin.com NH-D15
Test verdict: "Considering that this cooler exceeded the cooling performance of the NH-U12S and the NH-U14S, and matched if not exceeded the low noise production of both, the Noctua NH-D15 heatpipe tower CPU cooler has to receive the Bigbruin.com 'Recommended' and 'Whisper Quiet' awards." (Richard Jackson, BigBruin.com)
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15.09.2014 - Technik3D.com NH-D15
Test verdict: "Auch Kompakt-Wasserkühler wie der H2O 1250 haben mit dem großen Noctua zu kämpfen. Ein hervorragendes Ergebnis!" (Samir Udef, Technic3D.com)
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15.09.2014 - WCCFtech.com NH-D15
Test verdict: "The Noctua NH-D15 retails for $99 US and is the perfect choice for enthusiasts and desktop PC users who want the high performance in the air cooling market." (Hassan Mujtaba, WCCFtech.com)
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