In that case, what would the 490 be then? A higher-clocked Polaris? Isn't the 480 a full Polaris chip meaning anything higher up the stack would have to be a higher-clocked 480 or Vega architecture?
There's still a 485 to be released (ditto 475, 465, etc). These are probably all Polaris cards. Then there is a 490 and 495.
580, 590, with their subsequent "5" revisions, will probably exist, or they will be branded "Fury" or something new. Hopefully something new, but not stupid. If they call it AMD XtremeX, then I will burn my house down.
I believe 490 or 495 will be the ~1070 competitor (or maybe somewhere between), like Happy Medium says. But this still leaves the "580 and 590" classes with their revisions. Where those slot, I do not know. There will likely be a Vega that at least outperforms 1080, if only slightly. The Vega chip in the MI25 supposedly "outperforms" TitanXP, but I think that is in some software optimization mumbojumbo suite, and that card isn't, itself, designed for desktops. so who knows. I honestly doubt that the 490 is a dual chip card. It is probably small Vega, though. I think the "AMD is putting out a dual chip card!" is one of those rumor articles that gets republished every generation, because they did it once. If they do, they do. But honestly there is no reason to assume they would.
If 490 is small Vega, then that maybe only leaves one card at the "500" tier? Or 490 is this fabled "Polaris 20" that maybe comes out some time after Vega 10 and 11?
I'd be surprised if AMD puts out a Vega at the TitanXP level, but up until two days ago I thought they were going to release a Zen chip that marginally keeps a respectable, but lower, pace with a 3 year-old Intel CPU. So...I have no clue at this point. They seem to be full of legit surprises these days.
Here's the slide, so that everyone can stop guessing about the names.
Note that the 490/495 cards have a bus > 256 bit. This
can't be Polaris, right?