So I was toying some months ago with getting 2 GPU’s up and running on an ATX desktop. The resulting computing power was 480 MHash/s while consuming say 500 Watts per hour.
That was child’s play. And not very sensible financially.
The folks at Butterfly Labs are taking bitcoin hardware seriously. First they developed a dedicated device running around 800 MHash/s on 80 Watts per hour. Now they announced a new product line – BitForce SC – that would deliver 40 GHash/s using the same amount of power (source).
That’s magic! And it’s done with an Application Specific Integrated Circuit (ASIC). In other words: a Bitcoin-mining processor with super performance and minimal energy consumation.
The first batch is scheduled for October 2012. I’m seriously considering buying one. The catch: you have to be willing to invest $1300, pay upfront and have faith you’ll be among the lucky ones eligible to receive a unit from the first batch.
Update 2012-08-27: I’ve ordered two SC’s for my Bitcoin investment proposal (dutch). What do you think?