6R1M01R3 :
Reviews say that the Noctua are the quietest, if you dont mind the ugy color scheme.
Reviews can say what they like, I have two Noctua NF-P12s, they're definitely louder than the NDS fans,
and the Noctuas also look like a 1970s brown/biege nightmare blowout, seriously ugly. Everyone keeps
harping on about Noctuas as if they're the best; they're not, and they're expensive. There
are decent,
cheaper alternatives, though I wouldn't call the NDS fans cheap as such (similar price to the Scythe mentioned
by misfitkid86).
Btw, Yate Loon fans will be louder than the Corsair originals.
To reiterate: NDS fans cost quite a bit less than the Noctuas, they make less noise, look better, and cool
just as well. I've built two 3930K and one 3960X setups with H100is & NDS fans so far, plus another 3930K
with an H110. Buying Noctuas when it's just not necessary is simply wasting $20. Heh, assuming that is the
NDS models are available in the US (maybe not).
As I implied before though, and as SR-71 Blackbird says, there's no such thing as a quiet, cheap fan that
will also do a good cooling job. Cheap fans that really are quiet only behave that way because of a much
lower rpm, hence not so good for an H100i.
Note that I'm absolutely not saying the Noctua fans are loud (not at all, they're very quiet indeed), just
that there are cheaper alternatives which performer just as well or better, and certainly look nicer.
Ian.