I'm not so sure.
There were/are some PCBs that differ from reference with the 670/680.
Haven't seen any odd ones wit the 690 though.
But..........over time, with some of the partners that can actually design and manufacture their own boards.......ASUS, MSI, Gigabyte, Sapphire.......I'd wager somewhere we'll see this.........just not too soon since there aren't any reference models yet available......
one thing's for sure, they won't be cheap.
There were/are some PCBs that differ from reference with the 670/680.
Haven't seen any odd ones wit the 690 though.
But..........over time, with some of the partners that can actually design and manufacture their own boards.......ASUS, MSI, Gigabyte, Sapphire.......I'd wager somewhere we'll see this.........just not too soon since there aren't any reference models yet available......
one thing's for sure, they won't be cheap.