Samsung QLED Q8DN (2018) vs Samsung QLED Q9FN (2018)

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QLED Q8DN (2018) compared with QLED Q9FN (2018)

	SamsungQLED Q8DN (2018)	SamsungQLED Q9FN (2018)
Overview
Released
Released	2018	2018
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 local dimming. The UK maker tables do not publish native refresh or a dimming-zone count; AVForums counted just under 500 zones on its 65-inch unit.
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 QHDR 2000 is a product label, not a measured 2000-nit result. AVForums measured 1,833 nits in Movie mode on a 10% window on its UK 65-inch test unit; this is not assigned to the other sizes. Dolby Vision is unsupported.
Screen finish
Screen finish	Ultra Black Elite Moth Eye antireflection treatment in all three UK maker tables.	Ultra Black Elite Moth Eye anti-reflection treatment in all three UK maker tables.
Colour range
Colour range	Samsung Q Color and billion-colour support in all three UK maker tables.	Samsung's Q Color and billion colours appear in all three UK maker tables. AVForums measured 95% DCI-P3 xy on its 65-inch unit, short of Samsung's 100% colour-volume claim; that measurement is not assigned to other sizes.
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.	Samsung's Q Engine, Q Contrast Elite, Supreme UHD Dimming, Auto Motion Plus and 3700 Picture Quality Index appear in each UK maker table. PQI is a processing score, not native 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, Auto Motion Plus and Contrast Enhancer in each UK maker table. AVForums found the 65-inch Movie mode accurate without extensive calibration.
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Motion handling	AVForums noted occasional 50 Hz frame skipping on its UK 55-inch test unit; Samsung's UK tables do not publish native Hz.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 24p, 50p and 60p motion on its 65-inch test and suggests disabling the default Auto Motion Plus interpolation if the soap-opera effect is distracting. Samsung's UK tables do not state native Hz across sizes.
Viewing angle
Viewing angle	AVForums found strong straight-on contrast but reduced off-axis performance on its 55-inch unit.	Both independent 65-inch reviews note reduced contrast and colour off-axis compared with OLED despite Samsung's Q Viewing Angle feature.
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 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rate
Variable refresh rate	None	None
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.	Four HDMI 2.0 inputs on the 65-inch review unit accept up to 4K 60p, HDR10, HDR10+ and HLG (AVForums). Samsung's UK maker tables list four HDMI ports and ARC for every size. No 4K 120 Hz or eARC capability is claimed.
Input lag
Input lag	–	AVForums measured 21 ms at 1080p and 4K SDR and 22 ms at HDR on its UK 65-inch unit in Game Mode; about 80 ms without it. These are reviewer measurements for that size.
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.	Samsung's UK maker tables list Auto Game mode and Game Motion Plus. AVForums confirmed automatic Game Mode detection with a PS4 Pro on its 65-inch unit. At review time, VRR was planned in a firmware update, not yet available; VRR is therefore not listed as a confirmed feature here.
Smart TV and sound
Smart TV platform
Smart TV platform	Tizen	Tizen
Processor
Processor	Q Engine	Q Engine
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.	Samsung's separate UK maker tables specify 60 W, 4.2 channels and a woofer for all three sizes. AVForums found its 65-inch set adequate for ordinary TV but thin for films and sport.
Audio features
Audio features	Dolby Digital Plus, Bluetooth audio and Multiroom Link in the UK maker tables.	Dolby Digital Plus, Bluetooth audio and Multiroom Link in the UK maker 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.	Samsung voice interaction includes UK English in the 2018 maker tables; today's 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 and Wi-Fi Direct 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 MHEG 5, guide, PVR and time shift in the UK 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 × 707.1 × 38.9 mm; 65-inch 1450.1 × 830.4 × 38.9 mm; 75-inch 1675.8 × 961.9 × 39.4 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.	Midnight Black T-Center stand. With-stand weights from the separate UK maker tables: 55-inch 23.2 kg; 65-inch 30.9 kg; 75-inch 46.3 kg. The One Connect box holds power and inputs and joins the screen by one cable.
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 255 W; 65-inch 305 W; 75-inch 340 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.	Midnight Black front 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.	TM1890A 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.