From what I can tell the 480 will at least be on par performance with the 390x and with less heat and less power draw so if you can wait for the 480. I bought a 390 a few months ago and I will be selling and getting the 480 or maybe even wait a bit to get a 490. I don't think the price is going to be crazy either but we don't know yet what the card will have in it. The AIB partner cards should be out vary soon for the 480.
7/23/16 at 7:00pm