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Samsung QLED Q80T (2020) vs Samsung QLED Q9F (2017)

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

Better figure, where one is clearly better

SamsungQLED Q80T (2020)SamsungQLED Q9F (2017)
Overview
Released20202017
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.Flat quantum-dot LED-backlit LCD. TechRadar and Les Numériques identify the reviewed 65-inch panel as side edge-lit; Samsung's UK tables do not publish a native refresh rate or backlight layout for every size.
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 UK 65-inch table says QHDR 2000 and the 88-inch table QHDR 1500; these are product labels, not measured peak brightness. TechRadar says HLG and HDR10+ were awaiting firmware at review time. Samsung later confirmed HDR10+ on its 2017 UHD TV range through Prime Video; support from other sources is not established here.
Screen finishThe UK maker tables do not list Ultra Black. AVForums and Expert Reviews found limited off-axis performance on the 55-inch set.Moth Eye anti-reflection treatment in both available UK maker tables.
Colour rangeSamsung claims 100% Colour Volume with Quantum Dot in all five UK maker tables.Samsung's 2017 QLED launch claimed 100% colour volume. Les Numériques measured strong colour on its exact European 65-inch unit but found its Cinema-mode colour error above its preferred threshold; neither figure is 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.Q Engine, Supreme UHD Dimming, Auto Motion Plus and Picture Quality Index 3400 appear in the separate 65 and 88-inch UK tables. PQI is Samsung's processing score, not native panel Hz.
Picture modesFilm Mode and Natural Mode in all five UK maker tables.Film Mode, Auto Motion Plus and Contrast Enhancer in the UK maker tables. Les Numériques preferred Cinema mode with reduced dynamic processing on its 65-inch unit.
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.Les Numériques finds Auto Motion Plus effective on its 65-inch unit but suggests a custom setting to avoid the video-like interpolation effect. Samsung does not publish native Hz for both sizes in the UK tables, so the main refresh row is omitted.
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 find visible loss of contrast and colour off-centre despite Samsung's Q Viewing Angle label.
Sizes
Sizes49, 55, 65, 75, 85″65, 88″
Largest size85″88″
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 2.0a inputs on the 65-inch One Connect box according to TechRadar and Les Numériques; both UK maker tables list four HDMI inputs with ARC. No 4K 120 Hz or eARC capability is claimed.
Input lag–21 ms in Game Mode and 76 ms in Cinema mode on the European 65-inch Les Numériques review unit; these measurements are not assigned to other sizes.
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.Game Mode in both UK maker tables. No VRR or automatic low-latency mode is confirmed for this model.
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 UK 65 and 88-inch maker tables specify 60 W and 4.2 channels with a woofer. Les Numériques found the 65-inch sound clear for dialogue but still preferred external speakers for films.
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, DTS codec, Multiroom Link and Bluetooth audio in both UK maker tables.
Voice assistantsBixby, Google Assistant and Alexa compatibility in all UK maker tables; current service support can differ.Voice interaction with UK English support in the 2017 UK maker tables; present-day service availability may differ.
CastingSmartThings, mobile mirroring, Tap View, Multi View, DLNA and Wi-Fi Direct in the UK maker tables.Samsung Smart View, mobile mirroring, DLNA, Wi-Fi Direct and Bluetooth Low Energy 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+ 1.3, UK MHEG 5, programme guide, PVR and time shift in both UK maker tables.
USBTwo USB inputs in all five UK maker tables.Three USB inputs in both 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: 65-inch 1449.7 × 829.3 × 24.9 mm; 88-inch 1979 × 1131 × 30.4 mm. Configuration weights exclude stand. Samsung UK also identifies 55 and 75-inch Q9F models; their UK model-specific spec tables were unavailable, so their figures are not inferred from the 65 or 88-inch tables.
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.Samsung's Simple Stand uses two feet on the 65-inch model. With-stand weight: 65-inch 30 kg; 88-inch 74.5 kg. The separate One Connect box holds inputs and has its own power cable; a thin optical lead joins it to the TV.
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 each UK maker table: 65-inch 335 W; 88-inch 440 W.
Energy classUK maker tables list G for all five sizes on the revised A–G scale.B in the old UK energy-label scale for both verified sizes; not today's A–G scale.
ColoursCarbon Silver front and Titan Black stand in all five UK maker tables.Charcoal Black front in both 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.Samsung's UK maker tables list TM1790A Smart Control plus a TM1240A remote for UK/IE, power cable, manual and e-manual. No Gap wall mount is included with the 88-inch model but optional on the 65-inch.

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