Great work Vapor. I'll add the following link to this thread so that readers can get an idea of the variation in testing methodology and results that are being compiled and compared.
http://www.silentpcreview.com/article695-page1.html
Note the difference in performance around the papst and the noctua fans. There data indicates to me that the noctua pushes just as much air as the papst at a similar dB. Are they using a different papst? The 4112 FGL?
Also, their CFM findings are considerably higher for the noctua's then Vapors' findings. Like 20 CFM higher at 12V.
I guess having both fans next week will give me a chance to do a little subjective testing.
Cheers,
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