This is REAL sha256 computation. Just no read-back, so there may be high error rate and frequency should be decreased. So there should be no MORE power consumption, question now is only about PERFORMANCE. Also despite what galaxyASIC said seems that I have mastered to design $10 million-worth logic cell library (he claimed that such research costs in range of $10 million USD). If that job is really that complex and chip works, then this technology costs more than $10 million ALONE. But - need to wait of course to check error rates. Without real hashing and reading error rates it can be overestimated and real hash rate can be twice less (clock). Well - and also of course there may be minor bug that ruins whole thing, because development time was very short - that are current questions, not power consumption.