Samsung QLED Q8DN (2018) vs Samsung QLED Q90R (2019)

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QLED Q8DN (2018) compared with QLED Q90R (2019)

	SamsungQLED Q8DN (2018)	SamsungQLED Q90R (2019)
Overview
Released
Released	2018	March 2019
Display
Panel
Panel	LED LCD	LED LCD
Panel detail
Panel detail	Quantum-dot VA LCD with direct full-array local dimming on the UK Q8DN, confirmed by AVForums' exact UK 55-inch test; the UK Q8FN is a separate edge-lit series.	Quantum-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.
Resolution
Resolution	3840 × 2160 (4K)	3840 × 2160 (4K)
HDR formats
HDR formats	HDR10, HDR10+, HLG	HDR10, HDR10+, HLG
HDR extras
HDR extras	Samsung's Q HDR 1500 is a product label, not a measured 1500-nit figure for every size. Dolby Vision is unsupported.	Samsung'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 finish
Screen finish	Ultra Black Elite Moth Eye antireflection treatment in all three UK maker tables.	Moth Eye anti-reflection treatment in each UK size table.
Colour range
Colour range	Samsung Q Color and billion-colour support in all three UK maker tables.	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.
Picture processing
Picture processing	Q Engine, Q Contrast Plus, Supreme UHD Dimming, Auto Motion Plus and 3600 Picture Quality Index in each UK maker table. PQI is not a native refresh rate.	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 modes
Picture modes	Film Mode, Natural Mode, Auto Motion Plus and Contrast Enhancer in all three UK maker tables.	Film 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
Motion handling	AVForums noted occasional 50 Hz frame skipping on its UK 55-inch test unit; Samsung's UK tables do not publish native Hz.	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
Viewing angle	AVForums found strong straight-on contrast but reduced off-axis performance on its 55-inch unit.	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
Sizes
Sizes	55, 65, 75″	55, 65, 75″
Largest size
Largest size	75″	75″
Gaming
HDMI ports
HDMI ports	4 (0 HDMI 2.1 at 4K 120 Hz+)	4 (1 HDMI 2.1 at 4K 120 Hz+) (better)
Variable refresh rate
Variable refresh rate	None	FreeSync
Auto low latency mode
Auto low latency mode	–	Yes
HDMI detail
HDMI detail	Four HDMI inputs with ARC in the UK maker tables. AVForums found the UK 55-inch unit's inputs on the TV rather than a separate One Connect box.	Samsung 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 features
Game features	Auto Game Mode and Game Motion Plus in the UK maker tables. Firmware-dependent VRR availability was not established for the UK series at launch.	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.
Smart TV and sound
Smart TV platform
Smart TV platform	Tizen	Tizen
Processor
Processor	Q Engine	Quantum Processor 4K
Speakers
Speakers	40 W, 4.1 channels	60 W, 4.2 channels (better)
Wi-Fi
Wi-Fi	Built-in Wi-Fi	Wi-Fi
Bluetooth
Bluetooth	Bluetooth audio and Bluetooth Low Energy	Bluetooth audio and Bluetooth Low Energy
Speaker detail
Speaker detail	Samsung specifies 40 W, 4.1 channels and a woofer in all three UK maker tables.	60 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 features
Audio features	Dolby Digital Plus, Bluetooth audio and Multiroom Link in the UK maker tables.	Dolby Digital Plus, dialogue enhancement and Bluetooth audio in the UK tables. No Dolby Atmos or DTS:X claim is made.
Voice assistants
Voice assistants	Samsung voice interaction includes UK English in the 2018 maker tables; present-day service support can differ.	Bixby UK English and listed Google Assistant and Alexa compatibility in the UK maker tables; current service availability may differ.
Casting
Casting	Samsung SmartThings support, mobile mirroring, DLNA and Wi-Fi Direct in the UK maker tables.	Mobile-to-TV and TV-to-mobile mirroring, DLNA, Wi-Fi Direct and Sound Mirroring in the UK maker tables.
TV tuners
TV tuners	Twin DVB-T2/C/S2 digital tuners, analogue tuner, CI+ 1.4, UK MHEG 5, programme guide, USB recording and time shift.	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.
USB
USB	Two USB inputs in all three UK maker tables.	Three USB inputs on the One Connect box in all three UK maker tables.
Ethernet
Ethernet	Ethernet LAN built in.	Ethernet LAN built in.
Optical audio out
Optical audio out	One optical digital audio output.	One optical digital audio output.
Design and power
Size
Size	Without stand, width × height × depth from separate UK maker tables: 55-inch 1231.2 × 706.8 × 58.7 mm; 65-inch 1450.1 × 829.9 × 58.7 mm; 75-inch 1675.8 × 961.4 × 59.2 mm. Configuration weights exclude stand.	Without 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.
Stand
Stand	Two widely spaced feet. With-stand weights from separate UK maker tables: 55-inch 20 kg; 65-inch 27.1 kg; 75-inch 39.6 kg.	Dark 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
Power use	Maximum from separate UK maker tables: 55-inch 235 W; 65-inch 270 W; 75-inch 295 W.	Maximum from separate UK maker tables: 55-inch 200 W; 65-inch 255 W; 75-inch 300 W.
Energy class
Energy class	Old UK maker energy scale: B for 55 and 75-inch; A for 65-inch. Not today’s A–G scale.	B in the old UK maker energy-label scale for all three sizes; not today's A–G scale.
Colours
Colours	Carbon Silver front in all three UK maker tables.	Carbon Silver front and Dark Carbon Silver stand in the UK maker tables.
In the box
In the box	Samsung's UK tables list TM1890A Smart Control, power cable, manual and e-manual. A precise UK first-sale month was not established.	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.