If the j/gh ratio is real, this is gonna be a game changer!

it wont be. guarenteed thats at the lowest voltage/frequency, and probably for just the chip (doesnt include regulator loss, PSU loss, other power draws like a controller/fan)
realisticlaly in a final product, this would probably range 0.28W-0.50W depending on settings (ie: similar to the Bitmain chip)
well we know many builders are overly optimistic, but they specifically state they did a work around allowing for lower good clockings on the chip.
If so it should be lower then any other chip available.
they say .45 volts will allow for a stable minimum. right now sidehack is working on the bitmain chip and is getting a stable .65 or .675 volts .
So if this chip can do a stable .5 volts on the low end we could be at .3 watts a kh at the wall for btc nice ,but I can do .45 underclocked with an avalon 4.1 or a sp20e.
Would be really nice if .225 watts could work on the low end.