They aren't significantly worse GH/J than any other competing 28nm company, which has been my entire point the whole time.
Their specs most certainly are, even compared to actual shipping 55nm products. That hashfast and cointerra and VMC and black arrow and Coincraft and BFL and whomever Im forgetting are all exaggerating remains to be seen (Ill grant you BFL) , but for bitfury we have tested numbers. Those numbers make KnC's promised efficiency look anything but impressive and makes the other vendors claims for 28nm entirely believable.
The competing 28nm companies are using the same process, at the same node.
which leads you to believe everyone except KnC is lying through their teeth about their specs, and which leads me to question if KnC are doing a full custom design.
btw, VMC is doing a structured ASIC and their efficiency projections are better than KnCs. OF course they may also be overly optimistic, but still.
Besides, you havent explained the die size.
28nm standard cell, is a 28nm standard cell, either you realise this now, or time will demonstrate this fact.
How exactly would you tell? And how do you explain the picture of the PCB with a cyclone FPGA that was used to test the board? What are the odds a full custom asic would end up with the exact same compatible pinout as a cyclone/hardcopy?
28nm standard cell ASIC mining chips (which are being designed exclusively for KnCMiner by ORSoC).