LG OLED evo C5 55-inch (OLED55C54LA) / TCL QM8K 65-inch (65QM8K)

LG OLED evo C5 55-inch (OLED55C54LA): OLED55C54LA · 55-inch

TCL QM8K 65-inch (65QM8K): 65QM8K · North America · Google TV

SpecificationLG OLED evo C5 55-inch (OLED55C54LA)TCL QM8K 65-inch (65QM8K)
Release year20252025
Display55-inch OLED; 3840 × 2160 (4K) LG—
Refresh rate120 Hz native; up to 144 Hz with VRR

144 Hz applies to a compatible PC input; broadcasts and consoles send at most 4K 120 Hz.

LG		—
Processorα9 AI Processor 4K Gen8 LGTCL AiPQ Pro TCL
SoftwarewebOS 25; webOS Re:New programme

LG offers up to five years of free OS upgrades on selected models; per the UK page, security updates run until 31 December 2029.

LG		—
HDRDolby Vision, HDR10, HLG LG—
HDMI4 × HDMI; 4K 120 Hz, VRR, ALLM and QMS; eARC on HDMI 2 LG4 × HDMI (1 with eARC)

eARC sends audio from TV apps and connected sources to a soundbar or receiver over one cable, including lossless formats.

TCL
GamingG-Sync Compatible; FreeSync; HGiG; Game Optimiser; Dolby Vision gaming at 4K 120 Hz; under 0.1 ms response

Response time is a pixel-transition claim; input lag is measured separately.

LG		—
Audio40 W; 2.2 channels; Dolby Atmos; virtual 11.1.2 up-mix LGAudio by Bang & Olufsen; Dolby Atmos, Dolby Digital+, DTS:X, PCM passthrough

The sheet does not give total output power or channel count.

TCL
WirelessWi-Fi 6; Bluetooth 5.3 LG—
Other connections3 × USB 2.0; DVB-T2/T, DVB-C, DVB-S2/S and analogue tuner

Tuner options can differ by region.

LG		1 × USB 3.0, 1 × USB 2.0; Ethernet; optical (SPDIF) out; Wi-Fi 6; Bluetooth personal audio

Bluetooth version is not stated.

TCL
Size / weight with stand1222 × 757 × 230 mm; 16.0 kg

Stand footprint 470 × 230 mm.

LG		—
Size / weight without stand1222 × 703 × 45.1 mm; 14.1 kg LG—
VESA300 × 200 mm LG—
Power100–240 V AC, 50/60 Hz; standby under 0.5 W; energy class F (EU/UK) LG—
RemoteMagic Remote (MR25GA / MR25GB) LG—
Model—65QM8K (QM8K series, 2025)

The series comes in 65, 75, 85 and 98 inches; dimensions, weight, VESA and energy figures vary by size. This entry is the 65-inch North American model.

TCL
Panel—65-inch class 3840 × 2160; CrystGlow WHVA panel; anti-reflective ZeroBorder front

WHVA is TCL’s name for its wide-angle VA LCD panel; VA panels offer high native contrast but can lose contrast off-axis.

TCL
Backlight—QD-Mini LED; Halo Control System; Precise Dimming

Mini LED dims thousands of small LEDs in zones for deeper blacks; halos (blooming) can still appear around bright objects. The series sheet says “up to LD3800” zones; the 65-inch page gives no zone count.

TCL
HDR brightness—HDR 5000 nits (manufacturer class)

This is TCL’s marketing class and describes the peak reached on a small bright area. Independent measurements came in lower.

TCL
HDR formats—Dolby Vision IQ, HDR10+, HDR10, HLG

Dolby Vision IQ and HDR10+ carry scene-by-scene tone-mapping data; IQ also adjusts for room light.

TCL
Refresh and gaming—Native 144 Hz; VRR up to 144 Hz; Game Accelerator 288; Auto Game Mode, Game Bar

The native panel rate is 144 Hz; 288 is the upper limit of Game Accelerator mode. The manufacturer page does not say which HDMI inputs support 4K 144 Hz.

TCL
Operating system—Google TV TCL
Tuner—ATSC 3.0, ATSC 1.0, NTSC, Clear QAM

These are North American broadcast standards;

TCL
Energy—360 kWh per year (65-inch); standby under 0.5 W TCL
Size and weight—With stand 56.46 × 33.86 × 14.49 in, 50.93 lb; without stand 56.46 × 32.44 × 1.97 in, 46.52 lb

About 23.1 kg with stand, 21.1 kg without.

TCL
Wall mount—VESA 300 × 300, M6 screws TCL
In the box—Backlit voice remote (2 × AAA), quick start guide TCL