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Samsung QLED Q80T (2020) vs Samsung QLED Q9FN (2018)

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

Better figure, where one is clearly better

SamsungQLED Q80T (2020)SamsungQLED Q9FN (2018)
Overview
Released20202018
Display
PanelLED LCDLED LCD
Panel detailQuantum-dot LCD with Direct Full Array 8X local dimming in all five UK maker tables. UK QE55Q80T tests by AVForums and Expert Reviews confirmed full-array local dimming.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 The UK maker tables do not publish native refresh or a dimming-zone count; AVForums counted just under 500 zones on its 65-inch unit.
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate60 Hz (49″), 120 Hz (55, 65, 75, 85″)–
HDR formatsHDR10, HDR10+, HLGHDR10, HDR10+, HLG
HDR extrasSamsung labels the 49-inch Quantum HDR 1000 and larger UK sizes Quantum HDR 1500; these are product labels, not measured nits for every configuration. 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 finishThe UK maker tables do not list Ultra Black. AVForums and Expert Reviews found limited off-axis performance on the 55-inch set.Ultra Black Elite Moth Eye anti-reflection treatment in all three UK maker tables.
Colour rangeSamsung claims 100% Colour Volume with Quantum Dot in all five 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 processingQuantum Processor 4K AI Picture and upscaling, Supreme UHD Dimming, Contrast Enhancer and PQI 3200 on 49-inch or 3800 on larger UK sizes. 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 modesFilm Mode and Natural Mode in all five 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 handlingExpert Reviews found 60 Hz native on the UK 49-inch and 120 Hz on 55-inch and larger variants. AVForums saw occasional 50 Hz frame skipping on its 55-inch test unit.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 angleSamsung specifies Wide Viewing Angle on 55-inch and larger UK variants, but not on the 49-inch. The 55-inch lacks the higher-tier Ultra Wide Viewing Angle layer according to AVForums and Expert Reviews.Both independent 65-inch reviews note reduced contrast and colour off-axis compared with OLED despite Samsung's Q Viewing Angle feature.
Sizes
Sizes49, 55, 65, 75, 85″55, 65, 75″
Largest size85″75″
Gaming
HDMI ports4 (0 HDMI 2.1 at 4K 120 Hz+ (49″), 1 HDMI 2.1 at 4K 120 Hz+ (55, 65, 75, 85″))4 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateNone (49″), FreeSync (55, 65, 75, 85″)None
HDMI detailFour HDMI inputs and eARC on each UK maker table. Samsung's UK 4K 120 Hz support list and Expert Reviews confirm HDMI 4 at 4K 120 Hz on the 55-inch; Expert Reviews says the 49-inch has HDMI 2.0 only.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–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 featuresAuto Game Mode (ALLM), Game Motion Plus and Dynamic Black EQ in the UK maker tables. FreeSync is specified on 55-inch and larger UK models but absent on 49-inch. AVForums measured 11 ms lag on the UK 55-inch.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 platformTizenTizen
ProcessorQuantum Processor 4KQ Engine
Speakers–60 W, 4.2 channels
Wi-FiWi-Fi 5Wi-Fi
BluetoothBluetooth 4.2Bluetooth audio and Bluetooth Low Energy
Speaker detail49-inch: 40 W, 2.2 channels. 55, 65, 75 and 85-inch: 60 W, 2.2.2 channels. Each figure comes from its own UK maker table.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 featuresDolby Digital Plus, Active Voice Amplifier and Adaptive Sound+ across the UK sizes. Object Tracking Sound and Q-Symphony are specified on 55-inch and larger, not 49-inch.Dolby Digital Plus, Bluetooth audio and Multiroom Link in the UK maker tables. No Dolby Atmos or DTS:X claim is made.
Voice assistantsBixby, Google Assistant and Alexa compatibility in all UK maker tables; current service support can differ.Samsung voice interaction includes UK English in the 2018 maker tables; today's service availability may differ.
CastingSmartThings, mobile mirroring, Tap View, Multi View, 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 tunersTwin DVB-T/C/S2 digital tuners, analogue tuner, CI+ 1.4, UK HbbTV 2.0.1, 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.
USBTwo USB inputs in all five UK maker tables.Three USB inputs on the One Connect box in all three UK maker tables.
EthernetEthernet LAN built in.Ethernet LAN built in.
Optical audio outOne optical digital audio output.One optical digital audio output.
Design and power
SizeWithout stand, width × height × depth from separate UK maker tables: 49-inch 1094.8 × 634.4 × 54.9 mm; 55-inch 1227.6 × 706.7 × 53.9 mm; 65-inch 1446.5 × 829.8 × 53.9 mm; 75-inch 1670.6 × 958.7 × 53.9 mm; 85-inch 1892.8 × 1083.2 × 54.9 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.
StandCentral Floating Plate stand. With-stand weights: 49-inch 17.5 kg; 55-inch 21 kg; 65-inch 27.8 kg; 75-inch 40.3 kg; 85-inch 50.1 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 useMaximum by UK maker size: 49-inch 215 W; 55-inch 235 W; 65-inch 280 W; 75-inch 345 W; 85-inch 475 W.Maximum from separate UK maker tables: 55-inch 255 W; 65-inch 305 W; 75-inch 340 W.
Energy classUK maker tables list G for all five sizes on the revised A–G scale.B in the old UK maker energy-label scale for all three sizes; not today's A–G scale.
ColoursCarbon Silver front and Titan Black stand in all five UK maker tables.Midnight Black front in the UK maker tables.
In the boxSamsung's UK tables list the TM2050C Smart Control plus TM1240A remote, 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.

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