The antminer s6 gone have 4500 gh/s
Power 1000watts
I can not wait to order
S8 will be a big step for Bitmain as I think first we may see a 3 bay S7+ with 14-15TH.
S8 will then need a BM1386 and we are into uncharted territory as they probably the need to go straight to full custom on a 14/16nm Technology to get the speed & efficiency needed to make it worthwhile and be efficient enough after the halving. However agreed 10TH/s and 1500W giving 0.15J/GH sounds about right.
That said I would prefer to see a miner with 10TH/s taking 1200W, 0.12J/GH as you get a bigger choice of PSU's and the heat in their standard form factor is more manageable.
Rich
I think a S7+ makes sense first from past history. They easicly can do the S7+ one day if they decide to. So I think it is a easy extension.
S8 ... who knows not much talk as they are good at keeping stuff internal.
I would really dislike seeing a 3xS7 Frankenstein monster (again). A rectangle box form factor doing 7~8Th/s on 1400watts would be what i would like to see. (Maybe with a good PSU included for once?)
Then again it could be possible to buy individual "cubes" of S7+ which would probably 1200w~ as well but 6TH/s~ instead of 4~5TH/s.