What would be the hashrate of this machine?
You can't read?

650MH/s @ 750Watts

I wonder how much will it cost?
Really? You just quoted a random statement from a brand new account with 1(
ONE) post in the forum?
I say 12 MH/s @ 6000 Watts and that's provided there are such "ASICs" and this is not just FUD to drop the price of GPUs.