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Samsung QLED Q80T (2020) vs Samsung QLED Q90T (2020)

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

Better figure, where one is clearly better

SamsungQLED Q80T (2020)SamsungQLED Q90T (2020)
Overview
Released2020May 2020
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 16x local dimming. Samsung's UK tables do not publish native refresh or dimming-zone counts; they do confirm 4K 120 Hz Game Mode on HDMI 4 for each listed size.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 Quantum HDR 2000 is a product label, not a measured 2000-nit result. HDR10, HDR10+ and HLG are confirmed by the maker and exact-model reviews; 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.Anti Reflection Screen in each UK maker table.
Colour rangeSamsung claims 100% Colour Volume with Quantum Dot in all five UK maker tables.Samsung's UK tables claim 100% colour volume with Quantum Dot; this is a maker claim, not a reviewer measurement for every size.
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.Quantum Processor 4K, AI Picture, Ultimate UHD Dimming, Contrast Enhancer and 4200 Picture Quality Index in the UK maker tables. PQI is not native refresh rate.
Picture modesFilm Mode and Natural Mode in all five UK maker tables.Film Mode, Natural Mode and Contrast Enhancer in all three UK maker tables. What Hi-Fi? recommends adjusting the 55-inch picture for natural colour.
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.WIRED UK finds motion well controlled on its 55-inch unit; What Hi-Fi? finds an improvement over the prior model. Samsung's UK tables do not state native Hz, but explicitly confirm 4K 120 Hz Game Mode on HDMI 4 for every listed size.
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.Ultra Viewing Angle in all three UK maker tables; both independent 55-inch reviews find the picture remains usable well off-centre.
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 (1 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateNone (49″), FreeSync (55, 65, 75, 85″)FreeSync Premium
Auto low latency mode–Yes
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 inputs, with 4K 120 Hz Game Mode specifically on HDMI 4 according to Samsung's UK size tables. Those tables confirm eARC; the remaining HDMI inputs are not claimed as 4K 120 Hz capable. What Hi-Fi? says the set lacked official HDMI 2.1 certification despite its supported gaming features.
Input lag–What Hi-Fi? reports 11 ms on its exact UK 55-inch review unit; this reviewer measurement is not assigned to the 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.Auto Game Mode (ALLM), Game Motion Plus, Dynamic Black EQ and FreeSync Premium in all three UK maker tables. 4K 120 Hz is limited to HDMI 4.
Smart TV and sound
Smart TV platformTizenTizen
ProcessorQuantum Processor 4KQuantum Processor 4K
Speakers–60 W, 4.2.2 channels
eARC–Yes
Wi-FiWi-Fi 5Wi-Fi 5
BluetoothBluetooth 4.2Bluetooth 4.2
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 tables specify 60 W, 4.2.2 channels, a woofer and Object Tracking Sound for all three sizes. The 4.2.2 layout describes speaker placement, not Dolby Atmos decoding.
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, Dolby 5.1 decoder, Adaptive Sound+, Active Voice Amplifier and Q-Symphony in the UK maker tables. What Hi-Fi? confirms eARC can pass Atmos to external audio gear; the TV's speakers are not claimed to render Atmos.
Voice assistantsBixby, Google Assistant and Alexa compatibility in all UK maker tables; current service support can differ.Bixby UK English, Alexa and listed Google Assistant compatibility in the maker tables; current 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, Tap Mirroring, Wi-Fi Direct, Sound Mirroring and Multi-View in the UK maker tables. What Hi-Fi? also confirms AirPlay 2 on its 55-inch unit.
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 HbbTV 2.0.1 and MHEG 5, guide, PVR and time shift in the maker tables.
USBTwo USB inputs in all five UK maker tables.Two USB inputs in every UK maker size table. What Hi-Fi?'s 55-inch tech-spec box says three; WIRED UK and Samsung say two, so the main count follows the maker.
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 1227.6 × 705.6 × 34.8 mm; 65-inch 1446.5 × 828.3 × 34.8 mm; 75-inch 1670.6 × 957.8 × 35.2 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.Titan Black Bending Plate central stand. With-stand weights from separate UK maker tables: 55-inch 24.4 kg; 65-inch 33.6 kg; 75-inch 48.7 kg. Unlike the Q90R, inputs and power connect directly 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 separate UK maker tables: 55-inch 245 W; 65-inch 305 W; 75-inch 335 W.
Energy classUK maker tables list G for all five sizes on the revised A–G scale.G in Samsung's current UK A–G maker tables for all three sizes; this scale differs from the old Q90R B label.
ColoursCarbon Silver front and Titan Black stand in all five UK maker tables.Titan Black front and stand 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.Samsung's UK tables list TM2050C Smart Control and, for GB/IE, TM1240A standard remote, plus power cable, manual and e-manual.

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