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LG OLED evo C6 vs Samsung QLED Q90R (2019)

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

LGOLED evo C6SamsungQLED Q90R (2019)
Overview
ReleasedMarch 2026March 2019
Display
PanelOLEDLED LCD
Panel detailWOLED; 77″ and 83″ use a Primary RGB Tandem panel with Hyper Radiant Colour TechQuantum-dot LED-backlit LCD with Direct Full Array 16x local dimming. Samsung does not publish native panel Hz or a dimming-zone count in the UK size tables. The 82-inch UK model is known but its UK maker table is empty; only sizes with exact UK tables are listed here.
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate165 Hz–
HDR formatsDolby Vision, HDR10, HLGHDR10, HDR10+, HLG
HDR extrasDolby Vision IQSamsung's Quantum HDR 2000 is a product label, not a measured 2000-nit result. HDR10, HDR10+ and HLG are confirmed by the UK tables and What Hi-Fi?; Dolby Vision is unsupported.
Screen finishGlossyMoth Eye anti-reflection treatment in each UK size table.
Colour range–Samsung's UK tables say 100% colour volume by Quantum Dot and a billion colours; these are maker claims rather than measured coverage for every size.
Peak brightness1,251 nits in HDR on a 10% window, 65″ (Tom's Guide)–
Picture processingAI Picture Pro, AI HDR Remastering, Brightness Booster; 77″ and 83″ add Hyper Radiant Colour Tech (up to 3.2x peak brightness)Quantum Processor 4K, Ultimate UHD Dimming, Intelligent Mode, HDR tone mapping and 4000 Picture Quality Index in the UK maker tables. PQI is a processing score, not the native panel refresh rate.
Picture modesFILMMAKER MODE with Ambient Light Compensation, Creator Original modeFilm Mode, Natural Mode and Contrast Enhancer appear in the maker tables. What Hi-Fi? favours Standard mode over Movie mode on its 65-inch test unit.
Motion handling–AVForums finds good motion on its 65-inch test; What Hi-Fi? says processing can introduce artefacts. Samsung's UK maker tables do not publish native Hz, though its separate UK support page confirms 4K 120 Hz Game Mode through HDMI 4 for the three listed models.
Viewing angle–Ultra Viewing Angle appears in the maker tables. Both independent 65-inch reviews find a much wider usable angle than the 2018 Q9FN, though their comparisons do not establish equivalence with every OLED.
Sizes
Sizes42, 48, 55, 65, 77, 83″55, 65, 75″
Largest size83″75″
Gaming
HDMI ports4 (all HDMI 2.1 at 4K 120 Hz+)4 (1 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateHDMI VRR, G-Sync Compatible, FreeSync PremiumFreeSync
Auto low latency modeYesYes
HDMI detail4K 120 Hz on all four ports; eARC, VRR, ALLM, QMS and QFTSamsung UK confirms 4K 120 Hz Game Mode on HDMI 4 for QE55, QE65 and QE75 Q90R; the other three HDMI sockets are not claimed as 4K 120 Hz capable. What Hi-Fi? says the ports are not officially HDMI 2.1 certified, despite having some HDMI 2.1-era features. The UK tables confirm ARC but not eARC.
Game featuresUp to 4K 165 Hz; G-SYNC Compatible, FreeSync Premium, HGiG, VESA ClearMR 10000, 0.1 ms response; Game Dashboard and Optimiser; Bluetooth Ultra Low Latency controllers (under 2.5 ms)Auto Game Mode, Game Motion Plus, Dynamic Black EQ, Game Enhancer and FreeSync in each UK maker table. AVForums confirms game-console detection and low-latency mode on its 65-inch unit.
Cloud gamingNVIDIA GeForce NOW (4K 120 Hz HDR)–
Smart TV and sound
Smart TV platformwebOSTizen
Processoralpha 11 AI Processor 4K Gen3 (Dual AI Engine)Quantum Processor 4K
Speakers–60 W, 4.2 channels
Dolby AtmosYes–
DTS:XNo–
eARCYes–
Wi-FiWi-Fi 6Wi-Fi
Bluetooth5.3Bluetooth audio and Bluetooth Low Energy
Speaker detail42″ 20 W, 2.0 ch; 48″ to 83″ 40 W, 2.2 ch60 W, 4.2 channels and a woofer in all three UK maker tables. What Hi-Fi? likes the clarity but finds stronger integrated sound elsewhere.
Audio featuresVirtual 11.1.2 ch, AI Sound, AI Object Remastering Ultra, Dolby AtmosDolby Digital Plus, dialogue enhancement and Bluetooth audio in the UK tables. No Dolby Atmos or DTS:X claim is made.
Voice assistants–Bixby UK English and listed Google Assistant and Alexa compatibility in the UK maker tables; current service availability may differ.
Casting–Mobile-to-TV and TV-to-mobile mirroring, DLNA, Wi-Fi Direct and Sound Mirroring in the UK maker tables.
TV tuners–Twin DVB-T2/C/S2 digital tuners, analogue tuner, CI+ 1.4, UK HbbTV 2.0.1 and MHEG 5, guide, PVR and time shift in the maker tables.
Software updateswebOS 26; webOS Re:New Program upgrades for up to 5 years–
USB2 × USB 2.0Three USB inputs on the One Connect box in all three UK maker tables.
Ethernet–Ethernet LAN built in.
Optical audio out–One optical digital audio output.
Design and power
SizeWithout stand, 42″ 932 × 540 × 41.1 mm; 48″ 1071 × 620 × 46.9 mm; 55″ 1222 × 703 × 45.1 mm; 65″ 1441 × 826 × 45.1 mm; 77″ 1711 × 982 × 47.1 mm; 83″ 1842 × 1055 × 52.9 mmWithout stand, width × height × depth: 55-inch 1231.2 × 708.1 × 39.9 mm; 65-inch 1450.1 × 831.2 × 39.9 mm; 75-inch 1675.8 × 961.7 × 39.9 mm. Configuration weights exclude stand. Each size is from its own UK maker table.
StandCentral pedestal stand; 65″ stands 880 mm tall on it, stand footprint 470 × 230 mmDark Carbon Silver Bending Plate central stand. With-stand weights from separate UK maker tables: 55-inch 24.7 kg; 65-inch 34.7 kg; 75-inch 52.4 kg. One Connect carries power and inputs away from the display.
Power use–Maximum from separate UK maker tables: 55-inch 200 W; 65-inch 255 W; 75-inch 300 W.
Energy class–B in the old UK maker energy-label scale for all three sizes; not today's A–G scale.
Colours–Carbon Silver front and Dark Carbon Silver stand in the UK maker tables.
In the box–TM1990C Smart Control, power cable, manual and e-manual in the UK maker tables. The maker lists No Gap wall-mount support; the wall mount is optional.
VESA pattern48″, 55″ and 65″ 300 × 200 mm; 83″ 400 × 400 mm–
WarrantyOLED Care+ covers the panel for 5 years–

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