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Noctua NF-B9 Review

hardnrg    -   June 23, 2008
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Conclusion:

Well, I was hoping for a bit more performance out of the NF-B9, but at just 1600 RPM, it's asking quite a lot for it to perform better than fans turning at 2000 RPM and higher, and yet it matched or exceeded the performance of the Thermaltake TT-9025A (2000 RPM) fan. So, in this respect, the design of the NF-B9 fan blades can be seen as having a performance advantage over standard fan blades.

Where the NF-B9 fell a bit short of my expectations, was that it was actually slightly louder than the Thermaltake TT-9025A, a fan that comes free with many Thermaltake cases. So, how does the Noctua NF-B9 warrant the price premium for this fan over a "free" standard fan?

The NF-B9 is not as strong a performer as louder fans, but it's also not as quiet as a standard fan, and barely edges out in performance. I think the fan fails to deliver the required air pressure or airflow to be used in overclocked applications, but would be very much suited to cooling a stock clocked CPU, or as a case fan.

I really would like to see Noctua start producing some higher speed fans using these types of blades, to see how the performance increases and how the noise levels compare to medium and high performance fans. All the Noctua fans I have tested so far have been extremely quiet even at 12V, rendering the adaptors almost useless as the difference in noise is overshadowed by the loss in performance. Having a higher speed to begin with should give a more wholesome range of performance ranging from silent to high cooling ability.

 

Pros:

  • Just barely audible
  • Can be made silent with supplied adaptors
  • High quality sleeving

 

Cons:

  • Low-end performance
  • Not much benefit over cheap standard fans

 




  1. Introduction & Closer Look
  2. Closer Look (Continued)
  3. Specifications & Features
  4. Testing: Setup & Overclocking
  5. Testing: OCCT
  6. Testing: Noise
  7. Conclusion
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