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Samsung QLED Q90T (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 Q90T (2020)SamsungQLED Q9FN (2018)
Overview
ReleasedMay 20202018
Display
PanelLED LCDLED LCD
Panel detailQuantum-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 Samsung's UK tables do not publish native refresh or dimming-zone counts; they do confirm 4K 120 Hz Game Mode on HDMI 4 for each listed size.Quantum-dot LED-backlit LCD with direct full-array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 The UK maker tables do not publish native refresh or a dimming-zone count; AVForums counted just under 500 zones on its 65-inch unit.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)
HDR formatsHDR10, HDR10+, HLGHDR10, HDR10+, HLG
HDR extrasSamsung'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.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 finishAnti Reflection Screen in each UK maker table.Ultra Black Elite Moth Eye anti-reflection treatment in all three UK maker tables.
Colour rangeSamsung's UK tables claim 100% colour volume with Quantum Dot; this is a maker claim, not a reviewer measurement for every size.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, Ultimate UHD Dimming, Contrast Enhancer and 4200 Picture Quality Index in the UK maker tables. PQI is not 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, Natural Mode and Contrast Enhancer in all three UK maker tables. What Hi-Fi? recommends adjusting the 55-inch picture for natural colour.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 handlingWIRED 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.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 angleUltra Viewing Angle in all three UK maker tables; both independent 55-inch reviews find the picture remains usable well off-centre.Both independent 65-inch reviews note reduced contrast and colour off-axis compared with OLED despite Samsung's Q Viewing Angle feature.
Sizes
Sizes55, 65, 75″55, 65, 75″
Largest size75″75″
Gaming
HDMI ports4 (1 HDMI 2.1 at 4K 120 Hz+)4 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateFreeSync PremiumNone
Auto low latency modeYes–
HDMI detailFour 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.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 lagWhat Hi-Fi? reports 11 ms on its exact UK 55-inch review unit; this reviewer measurement is not assigned to the other sizes.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, Dynamic Black EQ and FreeSync Premium in all three UK maker tables. 4K 120 Hz is limited to HDMI 4.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
Speakers60 W, 4.2.2 channels60 W, 4.2 channels
eARCYes–
Wi-FiWi-Fi 5Wi-Fi
BluetoothBluetooth 4.2Bluetooth audio and Bluetooth Low Energy
Speaker detailSamsung'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.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, 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.Dolby Digital Plus, Bluetooth audio and Multiroom Link in the UK maker tables. No Dolby Atmos or DTS:X claim is made.
Voice assistantsBixby UK English, Alexa and listed Google Assistant compatibility in the maker tables; current service availability may differ.Samsung voice interaction includes UK English in the 2018 maker tables; today's service availability may differ.
CastingMobile-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.Mobile-to-TV and TV-to-mobile mirroring, DLNA and Wi-Fi Direct in the UK maker tables.
TV tunersTwin 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.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 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.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: 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.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.
StandTitan 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.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 from separate UK maker tables: 55-inch 245 W; 65-inch 305 W; 75-inch 335 W.Maximum from separate UK maker tables: 55-inch 255 W; 65-inch 305 W; 75-inch 340 W.
Energy classG in Samsung's current UK A–G maker tables for all three sizes; this scale differs from the old Q90R B label.B in the old UK maker energy-label scale for all three sizes; not today's A–G scale.
ColoursTitan Black front and stand in the UK maker tables.Midnight Black front in the UK maker tables.
In the boxSamsung's UK tables list TM2050C Smart Control and, for GB/IE, TM1240A standard remote, plus power cable, manual and e-manual.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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