Quote Originally Posted by Noctua
"...While the NF-S12 was optimized so as to provide a class-leading airflow to noise ratio in the lower speed ranges and therefore makes for an excellent case fan, the NF-P12 was designed to produce high airflow and an outstanding amount of static pressure, which makes it perfect for use on CPU coolers and other high-impedance applications..."
So they seems they have corrected their problems with the bad static pressure with their last fans. Just hope they can still have the low noice, and unannoying noice signature with the new design as they had with the last design.

If it works the way it promises this could be a new top-performer as radiator fan, if we don't look at the pricetag in price/performance Yate will always rule Hey it could probably just be hype as usal, but I'm a loser to hype But Overclock3d.net has published a review with promising results, just hope they will do a test with a radiator soon, as this one just include a casefan test At least the reviewer says this about radiator use:
Quote Originally Posted by Overclock3d.net
With the introduction of two extra blades to the fan the static pressure output of the fans will have been increased, which is a welcome improvement over the previous fans. Due to time constraints however, accurate testing of these improvements is not possible. I can say though that when fitted to a radiator consisting of 20 fins per inch it maintained pretty healthy airflow.
So lets hope it's a good performer