I'm building a gaming PC and I'm really on the fence with Nvidia and AMD GPU's. I want to play GPU demanding games like Crysis 3. I don't care about PhysX, all I care for is performance and (if really noticeable) noise and heat. I've read some bad reviews about AMD cards ex. DOA, blue screens, artifacts, ect. While on the other side there is Nvidia which has almost no bad reviews. However, the GTX 780 GPUs and down (as much as as I'm willing to pay) offer a higher price while not supporting DirectX 11.2 and most likely not supporting Mantle (if it will greatly increase performance it would be nice to have it). While AMD on the other hand has this and a way better price point from my perspective. I really would want a quality product that would run solid and not have many problems at a good price.