Yeah, BF only support DX 11 SLI. It actually scales negatively under DX 12. But is scale very well under DX 11. At 4k all maxed out it's hitting close to 120 FPS on my sig rig and it seems to always stay above 100 in SP. Not really tested it heavily, was just going down a list on games in reviews and seeing if the performance seemed about in line with what I was seeing personally.