Look at those SLI/CF results. Interesting.
780Ti SLI seems to give more or less expected results, but 1080 SLI seems to be poorly optimized at best and completely broken at worst. Same for R9 Fury X CF.
And how were they testing DX12 if it's not ready yet?
DX12 is in the game already and wasn't locked off to reviewers. I'm guessing the delay was decided fairly last minute and the day one patch will probably disable DX12 but it will still be in the game.