On PC Mode you have to set sharpness to 10 and contrast to 50 for true 4:4:4. That is what i saw also on other models. Only in PC Mode sharpness 10 is neutral. On all other modes 0 is neutral.

Maybe the game Mode with PC Icon need also 50 Contrast and sharpness 10 but i´ve not tested it because i don´t play on PC. But on consoles 0 is the way to go (but of coruse everyone can do what he like).

I did the same analysis as you and concluded that the Q70A is the display that has less problems and meets the standards of HDMI 2.1, but sometimes I miss the perfect blacks of more advanced TVs, especially in very dark games. Regarding the sharpness you are right, in PC mode the correct calibration is 10, but in all other modes it is recommended to lower it to 0.

Hey all, sorry for the delay in getting back to everyone, Da-iken is definitely correct. After further investigation from out testers, we can confirm that in PC Mode on the Samsung’s, the ‘neutral’ sharpness is 10. When our testers looked into it, in order to have proper sharpness in PC mode, it needs to be 10 (which it’s set to automatically). But on consoles and in regular content, you should leave it at 0. So I think the confusion is coming from different use cases. In PC mode, it does default to 10 and should be kept at 10, but in any other mode other than PC, it would default be 0. We’re currently discussing making any necessary changes to our review to reflect this information as well. Thanks again for bringing this to our attention!