[Is this your pro duo or are you speculating,I was under the impression pro duo was 2 furys so that would give us around 600 s/s max with Claymore!
Nope. The Fury Pro is 2x a Nano less a little 'cause the clocks have to be down a bit due to heat dissipation limitations.
Or 2x a FuryX less somewhat more 'cause the clocks have to be down quite a bit.
If it's running something that is PCI-E bandwidth intensive it loses a LOT more due to having to split the bandwidth between the 2 seperate GPU chips.
GPU on the Fury is 3584 shader units or some such (I forget the exact number), the FuryX Nano and one GPU on the Pro are 4096.