Are micron the only ones producing gddr5x, or are others such as samsung and sk hynix also going to be producing it? If they're only going into mass production in the summer then I doubt we'd see any new non-hbm gpus until q3 this year at the earliest.
Previous reports suggest it uses the same interface / pin-out as GDDR5, so the cost to implement should be minimal.
Anandtech disagree with you on that, they say it requires a more complex board than gddr5 currently uses. That coupled with the extra cost will make it just as expensive. It's not something you will see in a low end board. I'd be surprised if Nvidia did not use it as a difference between the price ranges 960 equivalent gddr5 970/980 equive gdd5x. With only the TI and Titan models getting HBM.
