Yes because bitfurys chips have been designed better, hence my hope that ken can make the most of the power efficiency benefits of a smaller process and get down to the theoretical level of about 0.1w/gh
Out of curiosity, why would you think that Ken would be able hit those kinds of numbers? So far every manufacturer of ASICs has been off on their specs and Friedcat hitting those numbers would be extremely impressive. So far on the 28nm process we've seen chips by Cointerra, KnC and HashFast, and all those companies are hitting around 1J/GH at the wall. It's not like those outfits are filled with incapable people, either.
From
AnandTechComing into the ASIC market is CoinTerra, headed up by Ravi Iyengar, former CPU Lead Architect at Samsungs Austin Research Center (SARC). Ravis focus at SARC was on the CPU Mid-Core, including integer execution and special purpose registers (good for Bitcoin). His history also includes helping design chips for the SGS4, as well as stints at Intel, Qualcomm and NVIDIA. At CoinTerra he is joined by Jim OConnor, VP of Engineering with a history of SOC design and Dr. Naveed Sherwani, CEO of Open Silicon.
Those guys haven't been able to hit 1J/GH at the wall on 28nm. 0.1J/GH even at the chip level would require a minor miracle.