Interesting to revisit my post from this long back as an estimate to the S5, S7 and future Bitfury chip efficiency.
When the S5 was released, x=25 for Jan '15,
11.2e(-0.118)(25)=0.586 W/GHs
7.0376e(-0.112)(25)=0.428 W/GHs
When the S7 was released, x=32 for August '15:
11.2e(-0.118)(32)=0.257 W/GHs
7.0376e(-0.112)(32)=0.195 W/GHs
Let's say we see Bitfury chips by April '16, or x=40
11.2e(-0.118)(40)=0.0998 W/GHs
7.0376e(-0.112)(40)=0.0798 W/GHs
Could be on to something here, first formula seems to hold somewhat true at this time.
That's looking awesome. hopefully Bitfury hits there target and has a retail solution, it aligns with my upgrade cycle.
Bitfury has never been friendly to the retail environment, even when they did share some of the chips they WAY overpriced it.
They already have funding from major investors to have everything to build in the first place, selling to retail is probably extra runs from the chip and wafer orders, or older tech as they are developing the next gen.