Let me start off by saying that I am not particularly tech savvy, so please excuse any incompetence I may exhibit. Anyway, I am trying to run Battlefield 4 on Ultra settings with a constant 60+ FPS. After some research, I came to the conclusion that the cheapest card that would be capable of doing this is one of the variants of the Radeon R9 290. However, when I search Radeon R9 290 on amazon, a bunch of different variants of it appear, all with different prices. I would like somebody to explain how these cards differ and help me select the card with the best value.