It doesn't sound like their chips are going to be as efficient as they originally claimed.
Two cases for 2000GH/s makes me think it's going to be closer to 1W/GH!
They explain this on their website in their forums.
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We have our final specs for the Minion. Based on our library (we can only simulate the TT corner which is 0.85v @ 25C) and the power consumption is 0.6-0.65W/Ghash. We trust that underclocked and underpowered the Minion will achieve under 0.5W/ghash as promised.
This is not as good as our first simulations which were based only on Front End but this is where we need to stop. The time does not allow us to continue our effort towards seeking a lower power consumption.
We had to drop the frequency from 1.5Ghz to 1.0Ghz in order to achieve this efficiency. However we've increased the number of cores so the Minion will hash at the speed promised.
We had met all the timings for 1.5Ghz but the efficiency was 0.8W/Ghash and this is not something we could have accepted.
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