How come there isn't a120 mm noctua in this sites 120mm fan reviews?
There has been reviews with noctua, specially lately i seen more, but you can get some info for example of the heatsink revews like the following,Noctua NH-U12P tower Cooler
Fan @ 12V: The fan was fairly loud at 32-33 dBA. It also throbbed with resonant beats. Analysis of the acoustic profile revealed a tonal peak at 380Hz. The throbbing, while less aggressive sounding than the normal buzz and whine common with high speed fans, can be just as irritating. It has a much lower pitch than most fans spinning around this speed.
Fan @ 9V: The fan was much quieter, registering only 22 dBA. However, it generated an unusual sound effect, that of a distant aircraft engine — a low-pitched, resonating hum. It hit just the right frequency and tone to create this eerie effect in our test room. Analysis showed it developed tonality in the 360Hz range.
Fan @ 7V: The fan was almost silent and very smooth. Close-up it was still audible, and the same airplane-type noise persisted though to a lesser degree.
Fan @ 5V: The fan was effectively silent.
The NF-P12 fan is interesting. Its notched blade design alters the acoustic profile, producing a unique sound. Whether it is more pleasant than other fans may come down to personal preference. We prefer our reference Nexus fan or any of the Scythe Slip Stream varieties, which sound very smooth, benign, and consistent throughout their speed ranges. It is quite possible, however, that the higher airflow of the NF-P12 fan at 12V will be useful for hotter CPUs that are overclocked.
But for a long time the Nexus has been the reference fan for SPCR, still today is a safe cheap bet. That's why i recommend you to read that specific review as it tested really good fans in the same roundup. Either way you are not making a bad choice, noctua fans are really good, just expensive.
For me atm is mostly noctuas, but out of the lack of options on PWM fans, Scythe was another decent but they discontinued the KAMA PWM. Noctua PWM fans are imo among the best out of the range of operation, a lot of good fans out there dont go lower than 600rpm, and for the vast majority there is no need to go lower, but for me its important to drive them as low as possible on idle and ramp them up with the conditions of the CPU. But im really interested on the new Phanteks 140mm Case/Radiator Cooling Fan (PH-F140XP_BK)
, according to their spec sheet, they are rated 600-1200rpms on PWM, but with their adapter they run 300-900rpm this is the range that im looking forward that mostly is why i chose noctua, but on black n white.... certanly appealing, so im going to test one before committing to them for the upcoming build.