k, found it:
The chip has a wide range of overclock and downclock options. However, the new product brief offers a bit more insight and hard specs.
The RockerBox is a multiple double design, with 193 double SHA low-power, high-performance engines, or cores. Each engine performs a single hash per cycle. The document states the chip can operate at 0.55V-0.8V and each engine can be shut down to conserve power.
The document also features a schematic of the chip and more package info – it is a more or less standard 19x19mm FCBGA design with 480 balls.
Looks promising
when i look at photo's you are desining 800 GH/s board?