Stock clocks, or overclocked?
Efficiency on the Fury/Nano is very good from everything I've seen, but still not impressive that a card with a ton more memory bandwidth and almost twice the Stream units is so poor on hashrate compared to a 2 generation old card.
Is that 32Mh at stock clocks, or overclocked?
Stock (30mh for me)
For the R9 nano, there is no difference between the model/brands, they are all stock, only difference is the brand name.