Noctua NF-R8 (80mm) and NF-S12 (120mm) Fanshardnrg -
Back of the box
The back of the box explains the technological advances in rotor and blade design (developed by the Austrian Institute for Heat-Transmission and Fan Technology) and how these benefit the Noctua fans. Also, the bearing type is described as "a magnetically centered, self lubricating oil-pressure bearing" which sounds similar to Panaflo's "hydrowave" approach, which is well-known for its superiority over standard ball or sleeve bearings. At the bottom, a detailed specification table is provided which includes figures at different speeds.
Inside the box
Each box is laid out the same with the Vibration Compensators (rubber grommets) arranged vertically on the right, and the fan cable, fan screws and various adapters at the top. On closer inspection, you can see that the 80mm fan comes with two speed reduction adapters (non-identical) and the 120mm fans only come with one speed reduction adapter. Both come with the four rubber grommets and standard self-tapping fan screws.
Straight away, you can see something very different going on with the 120mm blades. They look sort of skinny and straight compared to the "usual" design.
The 80mm fan looks slightly different, but I think the difference must be more subtle because I can't quite place why it looks different. Maybe the blades are slightly bigger or curved a little more.
Nice to see that even though the blades and rotor are different than normal, the frame of the fans are quite standard. There is no daft tube joining the fan mounting holes, so you can mount these fans on heatsinks with spring clips, like much of the Thermalright series, without any issues.