As you can see the NF-P12 has a very impressive airflow to decibel ratio ( 54.31855 CFM @ 19.8dB). As well as the impressive airflow to decibel ratio, Noctua has included low noise and ultra low noise adapters, effectively taking the fan down to very low noise levels. However as I'm sure many people have experienced, decibel measurements don't consider the pitch of the sound emitted so further into the review we will be taking a look at all the above RPM settings to get a fair idea of what sort of sound you can expect if you were to buy one.



Link: Overclock3d