?  Both use 28nm, both use large multi-GH dies, both use watercooling (made by the same company) to handle the thermal load, both have comparable power efficiency.
That is a generation behind?  

That being said iCEBREAKER is just a tool.  HF completely fucked over its early customers (himself included) and it remains to be seen exactly when any customer will get product in their hands producing revenue. So the idea that he holds them out as some kind of superior champion is well ... just stupid.