30gh @750w is way over optimistic. knowing how A4 ended in fiasco, my guess is it's going to be 20gh @ 1500w i say this because they haven't tested the chip yet and everything they advertise is based on simulation tests.
....And it will sound like you have moved next to an airport. The fan on the PSU @ 1600w alone will sound like an industrial park. And 1600w is probably low for 85% efficiency. Good luck finding a power supply, and with the household noise complaints.

Your girlfriend does not care what DASH is. She cannot hear the TV.
