I'll agree that the 840 had problems. But right now, AMD has more problems. In my opinion, I think that samsung can provide good enough quality to help amd with the performance on an immediate basis, and worry about the problems later.
I better still be able to get Ultima weapon, a gold chocobo, and Knights of the round in disc 1. Graphics look pathetic for what you'd expect in today's games. I am already disappointed thinking how it will look on ps4 (and inevitably pc).