Since the most recent big 'release' patch, DX12 stutters heavily. It worked fine prior to the patch. Vsync or no Vsync doesn't seem to matter, I get the same result. Yes, I am running the most recent video drivers.
I'm running on an MSI GE70 laptop with a Nvidia GeForce 765, 12GB RAM, i7 CPU.
P.S. DX11 works fine.