Has BFL said what process they are using for their ASIC? I would guess 130nm or 90nm.
Well not to be really down on BFL or anything. I would have to say it doesnt exist yet so neither of them is the answer.
Lets just say they tend to be a "lets pull a all nighter figuring this stuff out" a month after they were suppose to ship.
I figure all they got is a cardboard box with a chocolate mint in it right now. So about the only spec they can give you is its sporting a Andes wafer thin core right now.
http://en.wikipedia.org/wiki/Andes_Chocolate_MintsAsk again in November when they have at least something written on a chalk board.
Of course i am kidding .... or am I?