Bitmain’s Antminer S9 Announced at 14 th/s Using 16nm ASICsThe new S9 uses 189 chips to achieve this speed across 3 boards. Power consumption has been dropped to 0.1 J/GH for a power pull of roughly 1380 watts. This step up in chip speed and power is still presented in a S7-type design for easy deployment and long term use. Bitmain sees this step from 28nm to 16nm as a crucial change in the mining cycle and long term use of the miners — as opposed to the traditional cycle of releasing a new generation every few months.
http://bitcoinist.net/bitmain-antminer-s9-announced/
