Both the LG 86QNED82AUA 86″ and TCL 85C9K 85″ feature a 4K (UHD) resolution with a 3840 x 2160 px display, offering sharp image clarity. The LG model has a slightly larger screen size at 86.4″, while the TCL model measures 85″. The pixel density of the LG is 51 ppi, just shy of the TCL's 52 ppi, indicating a marginal difference in how detailed the image appears, though both are relatively similar in this regard.
In terms of display type, the LG 86QNED82AUA uses LED-backlit, LCD, and Mini-LED technology, while the TCL 85C9K utilizes a combination of QLED, LED-backlit, LCD, and Mini-LED, giving the TCL a more varied display technology. Both support a 10-bit depth and can display up to 1070 million colors, ensuring rich, vibrant visuals. The refresh rate of the LG model is 60Hz, which is much lower than the TCL's 144Hz, allowing for smoother motion handling on the TCL.
HDR support is another key difference, with both models supporting HDR10 and HLG, but the TCL also supports HDR10+ and Dolby Vision, offering a wider range of high dynamic range formats compared to the LG. Regarding adaptive synchronization, the LG 86QNED82AUA supports AMD FreeSync, while the TCL 85C9K goes further with support for FreeSync, FreeSync Premium, and FreeSync Premium Pro, potentially offering more options for smoother gameplay. Both models include an anti-reflection coating and ambient light sensor, with identical maximum viewing angles of 178º horizontally and vertically.