DX11 if you havean nvidia card, vulkan if youre amd.

According to digital foundry’s analysis, DX11 is always either better or the same, unless you are CPU-limited.

new default is DX11, even EA benchmark only show like 1~2% gain for AMD cards. I’ve played between both and honestly I can’t really see any difference. (6800XT with 3900X full amd build.)