Samsung QLED Q7F (2017) vs Samsung QLED Q8DN (2018)

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QLED Q7F (2017) compared with QLED Q8DN (2018)

	SamsungQLED Q7F (2017)	SamsungQLED Q8DN (2018)
Overview
Released
Released	2017	2018
Display
Panel
Panel	LED LCD	LED LCD
Panel detail
Panel detail	Flat quantum-dot LED-backlit LCD. AVForums identifies its tested UK 55-inch panel as 10-bit VA with LEDs along the bottom edge; Samsung's UK size tables do not specify the LCD matrix or native refresh rate for the other sizes.	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.
Resolution
Resolution	3840 × 2160 (4K)	3840 × 2160 (4K)
HDR formats
HDR formats	HDR10, HDR10+, HLG	HDR10, HDR10+, HLG
HDR extras
HDR extras	Samsung's QHDR 1500 is a product label, not a measured 1500-nit result. Samsung confirmed HDR10+ on its 2017 UHD range through Prime Video in December 2017; the initial UK maker tables do not specify HDR formats or whether other sources gained HDR10+.	Samsung's Q HDR 1500 is a product label, not a measured 1500-nit figure for every size. Dolby Vision is unsupported.
Screen finish
Screen finish	Moth Eye anti-reflection treatment in each UK size table.	Ultra Black Elite Moth Eye antireflection treatment in all three UK maker tables.
Colour range
Colour range	Samsung's March 2017 launch claimed 100% colour volume for the QLED family. AVForums measured 95% DCI-P3 xy on its exact UK 55-inch test; this is a reviewer measurement, not a maker specification for every size.	Samsung Q Color and billion-colour support in all three UK maker tables.
Picture processing
Picture processing	Samsung UK lists Auto Motion Plus, Supreme UHD Dimming, Q Viewing Angle and a 3100 Picture Quality Index. The index is a processing score, not the native panel refresh rate. Samsung Spain calls the 55-inch processor Q Engine, while the UK table says quad-core.	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.
Picture modes
Picture modes	Film Mode and Auto Motion Plus in each UK maker table. What Hi-Fi? recommends reducing contrast enhancement and sharpening on its 55-inch test unit.	Film Mode, Natural Mode, Auto Motion Plus and Contrast Enhancer in all three UK maker tables.
Motion handling
Motion handling	AVForums identifies a 100 Hz native panel in its UK 55-inch test and finds motion mostly good; What Hi-Fi? finds no ideal processing setting. The UK maker tables do not publish native Hz for all four sizes, so the main refresh row is omitted.	AVForums noted occasional 50 Hz frame skipping on its UK 55-inch test unit; Samsung's UK tables do not publish native Hz.
Viewing angle
Viewing angle	Both independent UK 55-inch reviews find colour and black levels deteriorate away from the centre despite Samsung's Q Viewing Angle claim.	AVForums found strong straight-on contrast but reduced off-axis performance on its 55-inch unit.
Sizes
Sizes
Sizes	49, 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 2.0b inputs on the reviewed UK 55-inch One Connect box, accepting up to 4K 60p with HDR10/HLG and HDCP 2.2 (AVForums). Samsung's separate UK maker tables list four HDMI inputs and ARC on every size; no 4K 120 Hz or eARC capability is claimed.	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.
Input lag
Input lag	23.8 ms (What Hi-Fi?) and 17.4 ms (AVForums) measured in Game Mode on separate exact UK 55-inch units; review measurements differ and are not assigned to other sizes.	–
Game features
Game features	Manual Game Mode in the UK maker tables. The 55-inch AVForums test found motion interpolation raised input lag to about 79 ms, compared with 17.4 ms in plain Game Mode.	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.
Smart TV and sound
Smart TV platform
Smart TV platform	Tizen	Tizen
Processor
Processor	Quad-core	Q Engine
Speakers
Speakers	40 W	40 W, 4.1 channels
Wi-Fi
Wi-Fi	Wi-Fi	Built-in Wi-Fi
Bluetooth
Bluetooth	–	Bluetooth audio and Bluetooth Low Energy
Speaker detail
Speaker detail	Samsung's separate UK maker tables specify 40 W across all four sizes, with 2.2 channels at 49 inches and 4.2 at 55, 65 and 75 inches. AVForums describes its exact 55-inch review unit as 2.2 channels; the disputed 55-inch channel figure is omitted from the main specification.	Samsung specifies 40 W, 4.1 channels and a woofer in all three UK maker tables.
Audio features
Audio features	Dolby Digital Plus, DTS codec, woofer, Multiroom Link and Bluetooth audio in Samsung's UK maker tables. No Dolby Atmos or DTS:X claim is made.	Dolby Digital Plus, Bluetooth audio and Multiroom Link in the UK maker tables.
Voice assistants
Voice assistants	Voice interaction with UK English support in Samsung's 2017 UK maker tables; today's service availability may differ.	Samsung voice interaction includes UK English in the 2018 maker tables; present-day service support can differ.
Casting
Casting	Samsung Smart View, mobile mirroring, DLNA, Wi-Fi Direct and Bluetooth Low Energy in the UK maker tables.	Samsung SmartThings support, 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+ 1.3, UK MHEG 5, programme guide, PVR and time shift in the UK maker tables.	Twin DVB-T2/C/S2 digital tuners, analogue tuner, CI+ 1.4, UK MHEG 5, programme guide, USB recording and time shift.
USB
USB	Three USB inputs on the One Connect box in the UK maker tables.	Two USB inputs 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: 49-inch 1089.4 × 627 × 44.9 mm; 55-inch 1225.2 × 703.6 × 44.9 mm; 65-inch 1444.1 × 826.4 × 45 mm; 75-inch 1671.2 × 957.9 × 53.2 mm. Configuration weights exclude stand. Each size is from its own UK maker table.	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.
Stand
Stand	Sterling Silver central metal tripod. With-stand weights from separate UK maker tables: 49-inch 18 kg; 55-inch 21.2 kg; 65-inch 29.8 kg; 75-inch 42.9 kg. One Connect has its own mains cable and joins the screen by a thin optical cable.	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.
Power use
Power use	Maximum from separate UK maker tables: 49-inch 155 W; 55-inch 180 W; 65-inch 225 W; 75-inch 280 W.	Maximum from separate UK maker tables: 55-inch 235 W; 65-inch 270 W; 75-inch 295 W.
Energy class
Energy class	Old energy labels: B at 49/55 inches and A at 65/75 inches. These are not today's A–G ratings.	Old UK maker energy scale: B for 55 and 75-inch; A for 65-inch. Not today’s A–G scale.
Colours
Colours	Sterling Silver front and metal stand in the UK maker tables.	Carbon Silver front in all three UK maker tables.
In the box
In the box	The UK maker tables name the TM1790A One Remote and TM1240A conventional remote for UK/IE, plus One Connect, power cable, user/e-manual and stand. A No Gap wall mount is optional.	Samsung's UK tables list TM1890A Smart Control, power cable, manual and e-manual. A precise UK first-sale month was not established.