EDIT:I guess I should say this ,Thanks for the reply's and I know you are trying to help out and are correct. I made the video with a 2560x1440 resolution,said sharing for fun . I am wondering do you think I am trying to trick people into believing that this is actual 120Hz on a Nvidia GPU thru HDMI without a proper adaptor DP 1.4 to 2.1HDMI or proper GPU capable of such bandwidth. Also the adaptor can not do 120Hz HDR/G-sync Internet is serious lol 4k 120 FPS over HDMI on LG TV OLED On Nvidia GPU,did not see posted here on the forum Sharing settings for those who would like to try out 4k 120 for fun,I just grabbed the settings of the net.No Nvidia Dynamic Super Resolution (DSR) needed You will need a proper HDMI cable, not sure if Variable Refresh Rate is working or just V-sync 1.No G-sync in game unless you turn off exclusive fullscreen. Then you would lose the 120 FPS and back to 60 FPS. 2.Nvidia control panel enable G-sync and V-sync for the 120FPS 3.Setup custom resolution the same as in the video in the Nvidia control panel 4.Tested on Steam games exclusive fullscreen, may not work with XBOX Game Pass Games tested in video Shadow Of The Tomb Raider Sleeping Dogs Bioshock Remastered Quick compare video
Guess you could always try Club 3D DisplayPort1.4 to HDMI 4K120Hz HDR Active Adapter M/F CAC-1085 https://www.amazon.com/gp/product/B...b_asin_title_o00_s00?ie=UTF8&psc=1&pldnSite=1
when you set the pixels manually, you are basically setting 1440p at 120hz to output to the display, with the mode set to 4k as reported by windows, it will render at 4k and downscale it to 1440p which is exactly what DSR does.
I have a 4K TV with my RTX 2070 Super, and I get 120Hz & 120FPS in game with BF5, but it's at 1920 x 1080. I do get 4K on my normal desktop, but its at 60Hz.