Samsung Neo QLED QN80H vs Samsung UHD KU6400

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Neo QLED QN80H compared with UHD KU6400

	SamsungNeo QLED QN80H	SamsungUHD KU6400
Overview
Released
Released	May 2026	2016
Display
Panel
Panel	Mini-LED	LED LCD
Panel detail
Panel detail	Quantum Mini LED with Supreme Mini LED Dimming; VA panel (RTINGS)	Flat LCD with LED backlight; VA panel on the 40-inch Digital Foundry and Tweakers review units. Panel type is not assigned to the other sizes.
Resolution
Resolution	3840 × 2160 (4K)	3840 × 2160 (4K)
Refresh rate
Refresh rate	50 Hz (50″), 144 Hz (55, 65, 75, 85, 100″)	–
HDR formats
HDR formats	HDR10, HDR10+	HDR10
Peak brightness
Peak brightness	–	Digital Foundry measured 400 nits peak brightness on its 40-inch sample; Tweakers measured 380 cd/m² at maximum backlight on its 40-inch sample. These are review measurements, not maker ratings.
HDR extras
HDR extras	NQ HDR+; HDR10+ Adaptive, Gaming and Advanced (no Gaming on 50″)	–
Screen finish
Screen finish	Glossy (RTINGS)	–
Picture processing
Picture processing	4K AI Upscaling, Real Depth Enhancer, Auto HDR Remastering, Color Booster Pro, HDR Brightness Optimizer, AI Picture (AI Optimized / AI Customization); Supersize Picture Enhancer on 85″ and 100″	Active Crystal Colour, UHD Dimming, Contrast Enhancer and Auto Motion Plus. The maker's PQI 1500 and Motion Rate 100 labels are not native panel refresh rates; native Hz is left unpublished.
Picture modes
Picture modes	Filmmaker Mode, EyeComfort Mode, AI Football Mode; Smart Calibration (Basic)	–
Motion handling
Motion handling	Motion Xcelerator 144 Hz (Motion Xcelerator on 50″); Samsung UK lists 100 Hz native with 144 Hz VRR and DLG 240 Hz	–
Viewing angle
Viewing angle	Wide Viewing Angle (not on 50″)	–
Sizes
Sizes
Sizes	50, 55, 65, 75, 85, 100″	40, 43, 49, 55, 65″
Largest size
Largest size	100″ (better)	65″
Gaming
HDMI ports
HDMI ports	4 (all HDMI 2.1 at 4K 120 Hz+) (better)	3 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rate
Variable refresh rate	HDMI VRR, FreeSync Premium Pro	None
Auto low latency mode
Auto low latency mode	Yes	No
HDMI detail
HDMI detail	4K 144 Hz on HDMI 1/2/3/4 (4K 60 Hz on the 50″); eARC; Anynet+ (HDMI-CEC)	Three HDMI inputs with ARC and HDMI-CEC. Tweakers confirmed HDMI 2.0 and 4K 60 Hz PC input on its 40-inch European sample; enable HDMI UHD Color for full chroma text reproduction.
Input lag
Input lag	–	21 ms in Game Mode on the 40-inch Tweakers sample. Digital Foundry lists 21 ms in its specifications table but 19 ms in its text; the conflicting figures are not combined.
Game features
Game features	FreeSync Premium Pro (not on 50″), HGiG, Game Motion Plus, Dynamic Black EQ, Game Bar, Super Ultra Wide Game View, Mini Map Zoom, AI Auto Game Mode, AI Gaming Optimizer	Manual Game Mode; no variable refresh or automatic low-latency switching.
Cloud gaming
Cloud gaming	Samsung Gaming Hub	–
Smart TV and sound
Smart TV platform
Smart TV platform	Tizen	Tizen
Processor
Processor	NQ4 AI Gen2 Processor	UHD Up-Scaling picture engine
Speakers
Speakers	30 W (better)	20 W, 2.0 channels
Dolby Atmos
Dolby Atmos	Yes	–
eARC
eARC	Yes	No
Wi-Fi
Wi-Fi	Wi-Fi 6E	Built-in Wi-Fi
Bluetooth
Bluetooth	5.3	–
Speaker detail
Speaker detail	30 W, 2ch (4ch on 100″), OTS Lite	Two-channel down-firing bass-reflex speakers with 20 W total output.
Audio features
Audio features	Q-Symphony, Active Voice Amplifier Pro, Adaptive Sound Pro, AI Sound Controller, 360 Audio, Audio Pre-selection Descriptor	Dolby Digital Plus, DTS, Multiroom Link, TV SoundConnect and Bluetooth headset support.
Voice assistants
Voice assistants	Bixby and Alexa built in, with far-field voice; works with Alexa and Google Assistant speakers; Vision AI Companion	–
Casting
Casting	Google Cast, Apple AirPlay, screen and sound mirroring from phones	–
Software updates
Software updates	Security updates until at least 31 December 2031	Tizen smart TV platform; original app availability is not guaranteed today.
TV tuners
TV tuners	DVB-T2/C/S2 and analogue; CI+ 1.4 slot; HbbTV 2.0.4	Samsung's UK API lists DVB-T2 for 40 inches and DVB-T2/C/S2 for the larger sizes. Its regional app and tuner entries differ, so satellite support is not assumed for the 40-inch model.
USB
USB	2 × USB-A	Two USB ports with media playback, recording and time shift.
Ethernet
Ethernet	1 × LAN	Ethernet LAN port.
Optical audio out
Optical audio out	1 × optical	Optical digital audio output. Digital Foundry describes a headphone output, while Tweakers reports no 3.5 mm socket; no analogue headphone output is assigned.
Design and power
Size
Size	Without stand, 50″ 1110.2 × 643.9 × 51.7 mm; 55″ 1224 × 708 × 52 mm; 65″ 1442.9 × 831.2 × 52 mm; 75″ 1666.6 × 957.8 × 52.3 mm; 85″ 1888.8 × 1083.2 × 52.5 mm; 100″ 2229.8 × 1273.4 × 57.4 mm	Width × height × depth without stands, from the UK manual: 40-inch 905.7 × 520.6 × 54.6 mm; 43-inch 968.8 × 565.2 × 55.4 mm; 49-inch 1101.4 × 639.7 × 55.2 mm; 55-inch 1237.2 × 716.1 × 55.2 mm; 65-inch 1458.1 × 841.4 × 54.9 mm. Configuration weights exclude stands.
Stand
Stand	Round feet that fit at the edges or closer together (e.g. 65″ 1209.5 or 300.3 mm wide, 256.8 mm deep); Metal Linear feet on the 100″ (1722.9 × 415.4 mm)	Fixed stand with no swivel. The UK manual overrides conflicting online table dimensions for 40 inches and with-stand height/depth for 55 inches. With-stand weights are 11.5, 12.7, 17.1, 19.6 and 26.8 kg respectively.
VESA pattern
VESA pattern	50″ 200 × 200 mm; 55″ 300 × 200 mm; 65″ and 75″ 400 × 300 mm; 85″ and 100″ 600 × 400 mm	–
Power use
Power use	Typical/max, 50″ 65/190 W; 55″ 64/200 W; 65″ 85/250 W; 75″ 106/310 W; 85″ 129/370 W; 100″ 159/430 W; 0.5 W standby	–
Energy class
Energy class	F (50″); E (55″ to 100″)	–
Colours
Colours	Titan Black	–
In the box
In the box	Power cable, user manual	Samsung Smart Remote, batteries, power cable, manual and analogue breakout cable; additional remote wording varies by size in the maker tables.