Here you go: http://www.pcgameshardware.de/Star-...950/Specials/Beta-Technik-Benchmarks-1173656/I see 1050/1500 on the graph for the 390x. Fury X leads Titan X by 0.6 fps at 4k, that's basically margin of error. My point stands, bring in an aftermarket 980 and even a mild OC on Titan X or 980 Ti and AMD would lose handily because their cards are already pretty much maxed out from the factory. Considering this, it will only get worse for them after a few driver updates.
1.3Ghz 980 vs 1070Mhz 390X and they are practically tied at 1080p. 1Ghz 290 vs 1.3Ghz 970 and 970 looses at 1080p. 1.3Ghz 980Ti is 15% faster than normal Fury, too bad they didn't have Fury X. 1080p + 200% res scale (effectively 4K) and that 15% cap on custom 980Ti shrinks to just 2% vs Fury and 390X is 11% faster vs 980.
And the maxed out from factory is only partly valid with Fury lineup, those custom 290 / 390 series do have some OC potential left in them (MSI 390X repeatedly goes to 1150-1200 range, not to some lousy 1100mhz which I could hit with stock 290X without voltage tweaking) and 79xx / 280 series can OC really well.
But why do I even bother with this obvious Nvidia fanboy
The good thing is that the performance is good across the whole board even if AMD seems to have a small edge in this game. That hasn't happened in a while so good for them. This is how games should be done and not with glue and gum. First make the game run properly and then add those fancy effect libraries