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TCL C855K vs TCL C8L

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

Better figure, where one is clearly better

TCLC855KTCLC8L
Overview
ReleasedJune 2024May 2026
Display
PanelMini-LEDMini-LED
Panel detailQuantum-dot LCD with full-array Mini LED local dimmingSQD-Mini LED (Super Quantum Dot) on a CSOT WHVA 2.0 Ultra panel (HVA 2.0 on the 55″); dimming zones 1,008 (55″), 2,040 (65″), 2,584 (75″), 3,200 (85″), 4,032 (98″)
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate144 Hz144 Hz
HDR formatsDolby Vision, HDR10, HDR10+, HLGDolby Vision, HDR10, HDR10+, HLG
HDR extrasDolby Vision IQ; IMAX EnhancedDolby Vision IQ, HDR10+, IMAX Enhanced; Dolby Vision 2 promised in a future software update
Screen finish–0.5% low-reflection film
Peak brightnessUK feature pages claim 3,300 nits peak for 65 inches and 3,500 nits for 75–98 inches. UK specification tables separately list 2,000 nits system brightness without the same peak conditions; neither figure is a calibrated review measurement.Up to 3,000 nits (55″), 5,000 (65″), 5,500 (75″) and 6,000 (85″, 98″) (TCL); about 3,500 nits sustained and 5,000 nits peak measured on the 65-inch (FlatpanelsHD)
Colour rangeMaker UK tables give 97% DCI-P3 for 65/75 inches and 98% for 85/98 inches; measurement conditions unspecifiedUp to 100% BT.2020 (area ratio, TCL lab figure)
Picture processingAiPQ Pro processing; quantum-dot colour and Mini LED local dimming. AVForums reports 1,344 dimming zones on its tested 65C855K; this is not applied to other sizes.AI ClarityMaster, AI ContrastMaster, AI ColourMaster, AI MotionMaster; 26-bit dynamic dimming; Super Condensed Micro Lens and Micro-OD backlight
Picture modesMovie and IMAX Enhanced; no Filmmaker Mode in the reviewed 65-inch units. Reviews found picture settings needed adjustment.–
Motion handlingNative display up to 144 Hz at 4K; 240 Hz Game Accelerator at Full HD, not native full-resolution 4K refresh–
Viewing angleAVForums found restricted off-axis viewing on its 65-inch VA-panel sample–
Sizes
Sizes65, 75, 85, 98″55, 65, 75, 85, 98″
Largest size98″98″
Gaming
HDMI ports4 (2 HDMI 2.1 at 4K 120 Hz+)4 (all HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateHDMI VRR, FreeSync Premium ProHDMI VRR, FreeSync Premium Pro
Auto low latency modeYesYes
HDMI detailTCL UK labels four inputs HDMI 2.1. AVForums and What Hi-Fi? verify two high-bandwidth 48 Gbit/s inputs on 65C855K; AVForums identifies HDMI 1 up to 4K 144 Hz, HDMI 2 up to 4K 120 Hz and eARC on HDMI 4 separately.4 × HDMI 2.1; eARC/ARC; HDMI CEC
Variable refresh rangeUp to 144 Hz at 4K; FreeSync Premium Pro48–288 Hz (288 Hz via the Game Accelerator at lower resolutions)
Input lag–12.4 ms at 4K 60 Hz and 7.8 ms at 1440p 120 Hz (FlatpanelsHD, 65-inch)
Game featuresGame Master Pro 3.0; ALLM; game bar; Dolby Vision gaming at 4K 120 HzGame Master, Gamebar, 288 Hz VRR Game Accelerator
Smart TV and sound
Smart TV platformGoogle TVGoogle TV
ProcessorAiPQ ProTSR AiPQ Processor (MediaTek Pentonic 800)
Speakers60 W2.1 channels
Dolby AtmosYesYes
DTS:X–Yes
eARCYesYes
Wi-FiWi-Fi 6Wi-Fi 6
Bluetooth5.05.4
Speaker detailUK tables specify a 60 W Onkyo system; 2.1.2 channels on 65/75 inches, 2.2.2 on 85/98 inches. AVForums instead describes its 65-inch system as 50 W; the main figure follows TCL’s current specification table.Audio by Bang & Olufsen, 2.1-channel surround design with Hi-END speakers; TCL lists no power figure
Audio featuresDolby Atmos; maker tables list DTS Premium Sound; AVForums identifies DTS Virtual:X on its 65-inch sampleBeosonic sound tuning by Bang & Olufsen
Voice assistantsHands-free Google AssistantGoogle Assistant built in; hands-free voice control
CastingMiracast, Chromecast and AirPlay 2Google Cast (Chromecast), AirPlay 2, Miracast
Software updates65C855X1 sheet guarantees eight years of software/firmware availability from the end of placement on the market; not an Android version-upgrade promiseSoftware and firmware updates for at least 8 years after the model leaves the market (TCL product information sheet)
USBTwo USB ports on the 65-inch sample, as inspected by AVForums–
EthernetRJ-45 LAN on the 65-inch sample, as inspected by AVForums–
Optical audio outOptical digital output on the 65-inch sample, as inspected by AVForums–
Design and power
Size65-inch television 1,445 × 835 × 56 mm without stand, maximum depth; 1,445 × 869 × 298 mm with stand (width × height × depth). Configuration weights are TCL’s explicitly labelled weights without stands; its with-stand and packaging table entries have inconsistent labels.Without stand, 55″ 1226 × 710 × 55.9 mm; 65″ 1434 × 824 × 50 mm; 75″ 1658 × 949 × 51 mm; 85″ 1880 × 1073 × 53 mm; 98″ 2166 × 1236 × 54 mm
Stand65/75-inch stand width 341 mm; 85-inch 1,405 mm; 98-inch 1,707 mm, from TCL UK tablesStand footprint (W × D), 55″ 315 × 270 mm; 65″ 388 × 380 mm; 75″ 388 × 368 mm; 85″ 410 × 379 mm; 98″ 1885 × 420 mm
VESA pattern400 × 300 mm (65 inches), 500 × 400 mm (75), 600 × 500 mm (85), 600 × 600 mm (98)300 × 300 mm (55″, 65″); 400 × 400 mm (75″); 600 × 500 mm (85″, 98″)
Power use65C855X1 sheet linked by TCL UK gives 102 W SDR, 350 W HDR, 0.5 W standby and 2 W networked standby; exact regulatory variantSDR/HDR on mode, 55″ 64/250 W; 65″ 67/300 W; 75″ 85/400 W; 85″ 123/500 W; 98″ 124/520 W; 0.5 W standby, 2.0 W networked standby
Energy classF SDR and G HDR for 65C855X1 in the sheet linked by TCL UKSDR: E (55″, 85″), D (65″, 75″, 98″); HDR: G
WarrantyTwo-year manufacturer warranty on TCL UK pages2 years (UK); TCL UK's registration offer adds 3 years for purchases made by 30 June 2027

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