En pointe fra Microsoft ift. HDMI 2.1, selvom spil ikke nødvendigvis kan afvikles stabilt i 4K120 er, at det bidrager til at sænke forsinkelsen.
Transmission time to the TV: HDMI 2.1 supports up to 4k at 120 Hz which allowed the team to reduce frame transmission time from 16.6ms to 8.3ms, without sacrificing on resolution. This is an automatic 8.3ms latency improvement on TVs that support it and benefits games at all framerates.
Variable refresh rate (VRR): When games miss their frames, VRR will show the result with the lowest possible latency. 120 Hz TVs that support VRR typically have very large timing windows which makes above 40 FPS performance free of screen tearing.
Kilde:
https://news.xbox.com/en-us/2020/03/16/ ... x-latency/
Apropos deres reference til "above 40fps" så er det sjovt nok fra 40, at LG's VRR-frekvensspænd i 2019 OLED TV starter. Mon ikke parterne har talt sammen i udviklingsforløbet.