AMD Fury X is a test bed card and a bit of a joke if you ask me. HBM is amazing new tech but i feel they and you(the buying customer) should wait for HBM v2. Especially if it's a once in a life time buy type of thing. If i was sitting on money right now for a new AMD top of the line card then i'd be slightly worried about the limiting amount of stacked video memory. For me now with a 980 i can max it out now in games like the Witcher if i have other things open as well. I'm not 100% sure about a few things though, will double bandwidth of say 640gb/s mean it will need less memory or because it eats bandwidth i'm guessing you'd actually use more than normal. That mean's that the card will be a beast but it's life will be very short. I know you can turn settings down to stop hitting max memory usage but generally people buying these cards want as close to max settings as possible right. mmm i just don't know. It'll beat my GTX980 G1 but it probably wouldn't be an upgrade either because both will run out of memory together. Tick Tock Tick Tock roll on HBM v2 8gb and then we'll talk. Btw this is already proven since they are re-rolling 2xx to 3xx with 8gb models only, because why?