Using my GTX 1080TI I can verify 4K@59.94hz does indeed work. Very impressive results as I was already satisfied with the HDR10 implementation, but Dolby Vision takes it to another level. My only gripe is that my AVR(Denon X4300H) won't pass the DV signal so I have to figure out a way to send my audio from the GPU another way.
I'm thinking since I have two GPUs(using laptop with graphics AMP) I might be able to pull something off.
JVC RS400, Denon X6300H, Klipsch RP-280F x 2, RP-450C, RB-51 II x 2, RS-42 II x 2, RB-41 II x 2, R-150M in 7.1.4, 180" Painted wall
LG 65C7, Denon X4300H, Klipsch RF-26 x 2, RC-52 II, Onkyo speakers in 5.1.4 setup
TCL 55P605, Onkyo 636, Theatre Research bi-amp tower speakers in 3.0 Setup
Vizio D40u-D1, Klipsch 2.1 THX certified speakers, Xtension Pedestal Sit Down cabinet