Skip to content
tcl TCL 75Q51K – Full Specifications TV
RATED
Great
7.0/10

74.5″ TCL 75Q51K – Full Specifications

The TCL 75Q51K is a 74.5-inch 4K quantum-dot LED Google TV built around a HVA panel, with a feature set aimed at Budget-Focused Everyday Entertainment.

74.5″ · 1.778:1 / 16:9 · MODEL YEAR 2025
tclTV
Display
74.5 in, HVA, Direct LED, 4K
74.5
Refresh rate
50 Hz / 60 Hz
50 Hz
Dimensions
1667 mm (millimeters) x 960 mm (millimeters) x 74 mm (millimeters) (W x H x D)
1667
Weight
18 kg (kilograms) / 39.68 lbs (pounds)
18 k
Processor
Realtek RTD2875P
2875

Overview

The TCL 75Q51K is a 74.5-inch 4K quantum-dot LED Google TV built around a HVA panel, with a feature set aimed at Budget-Focused Everyday Entertainment. Picture specifications include quantum-dot color, while HDR support covers HDR10 / HLG / HDR / Dolby Vision / HDR10+. For gaming, it lists 50 Hz / 60 Hz refresh, ALLM. The smart platform is backed by Realtek RTD2875P, 2 GB (gigabytes) RAM, 16 GB (gigabytes) / eMMC 5.1 storage. Connectivity includes 3 HDMI ports (2.0), 1 USB port, plus Wi-Fi, Ethernet and Bluetooth where listed. The supplied data does not publish a typical brightness figure, so real HDR highlight intensity cannot be ranked confidently from the specification sheet alone. It makes the most sense for streaming, TV and movie viewers who value the listed smart features and screen size.

BrandTCLPanel TypeHVAResolution4KRefresh Rate50 Hz / 60 Hz

Key Highlights

  • quantum-dot LED display system paired with a HVA panel and 4K resolution
  • HDR compatibility includes HDR10 / HLG / HDR / Dolby Vision / HDR10+
  • ALLM is listed for automatic low-latency game mode switching
  • Google TV with Realtek RTD2875P handles streaming apps and smart-TV functions

Who Should Buy the tcl 75Q51K

+ Best For
Streaming households
Google TV supports the major apps and casting features listed for this model
4K content
the 74.5-inch screen is suited to films, television and streaming at the panel's native resolution
Everyday console use
ALLM is listed, but the native 50/60 Hz panel is aimed at standard frame-rate gaming
Color-focused buyers
quantum-dot/wide-color features are listed for this model
× Not Ideal For
HDR brightness shoppers
typical/peak brightness is not published in the supplied data
120 Hz gaming buyers
the listed native refresh rate is 50/60 Hz
Buyers who need laboratory picture measurements
the source is a specification dataset rather than an instrumented review

Display Performance

Refresh Rate 50 Hz / 60 Hz Designed around standard TV and console frame rates
Brightness Not published HDR intensity cannot be confirmed from the supplied data
Contrast Not published No static contrast figure is supplied
HDR HDR10 / HLG / HDR / Dolby Vision / HDR10+ Format compatibility does not by itself guarantee strong HDR brightness

Gaming Performance

Refresh Rate50 Hz / 60 HzStandard 50/60 Hz gaming focus

HDR & Brightness Reality

The TCL 75Q51K supports HDR10 / HLG / HDR / Dolby Vision / HDR10+, but no typical brightness figure is published in this batch. Without a published brightness measurement, HDR highlight strength should not be inferred from format badges alone.

Connectivity & Ports

HDMI3 ports; versions listed: 2.0Main connection for consoles, players and set-top boxes
Audio OutOpticalExternal soundbar/receiver connection where listed

Real-World Use Cases

Streaming
Google TV with the listed Netflix, Prime Video and Disney+ support
Movies
HDR10 / HLG / HDR / Dolby Vision / HDR10+ for compatible film and streaming sources
Gaming
standard 50/60 Hz gaming with ALLM where supported
Wall mounting
300 x 300 mm and 18.2 kg (kilograms) / 40.12 lbs (pounds) determine bracket requirements

Pros & Cons

Pros
  • Native 4K resolution suits modern streaming, films and current consoles
  • Quantum-dot / wide-color capability is listed for broader color reproduction
  • ALLM is included for automatic low-latency game mode switching
  • 3 HDMI ports plus smart-network connectivity cover common home entertainment devices
  • Google TV provides a familiar streaming and casting platform
Cons
  • Typical and peak brightness are not published in the supplied data, limiting HDR intensity comparisons
  • 50/60 Hz native refresh is not aimed at high-refresh 120 Hz gaming
  • The supplied dataset is specification-based and does not include measured input lag or full picture-quality testing

Score & Ratings

7.0/10 Great
Design
8
Display
7
Color
7
Performance
6
Connectivity
7
Television Identity & Market 12
Specification Value
Brand TCL
Series Q51K
Model 75Q51K
Full Product Name TCL 75Q51K
Model Year 2025
TV Category Entry QLED Tier
Market Position Entry-Level QLED, Retail-Exclusive
Primary Use Budget-Focused Everyday Entertainment
Region / Variant Not specified
Launch Status 2025 model year
Available Colors Black
Warranty 1 year limited warranty (North America)
Screen Geometry & Format 7
Specification Value What It Means
Screen Size 74.5 in 74.5 in (inches) determines viewing distance and furniture width requirements.
Exact Diagonal 1893 mm / 189.3 cm / 74.5276 in / 6.2106 ft
Aspect Ratio 1.778:1 / 16:9
Active Display Width 1650.24 mm / 165.024 cm / 64.9701 in / 5.4142 ft
Active Display Height 928.26 mm / 92.826 cm / 36.5457 in / 3.0455 ft
Screen-to-Body Ratio 95.72 %
3D Support No
Panel Architecture & Light Control 8
Specification Value What It Means
Panel Manufacturer CSOT
Panel Type HVA HVA is the panel type reported by the source for this exact model.
Panel Technology VA
Quantum Dot Yes
Backlight Type Direct LED
Panel Bit Depth 10 bits (8 bits + FRC)
FRC Yes
Display Colors 1073741824 colors / 30 bits
Resolution, Scaling & Signal 3
Specification Value
Native Resolution 3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p
Pixel Density 59 ppi / 23 ppcm
Pixel Pitch 0.43 mm / 0.043 cm / 0.0169 in / 0.0014 ft
Luminance, Blacks & Contrast 3
Specification Value
Viewing Angles 178 ° / 178 ° / Colorful Quantum Crystals / High Brightness LED Backlight
Horizontal Viewing Angle 178 °
Vertical Viewing Angle 178 ° / Colorful Quantum Crystals / High Brightness LED Backlight
Color Reproduction & Calibration 1
Specification Value
Wide Color Gamut Yes
HDR Formats & Tone Mapping 6
Specification Value
HDR Support
Dolby VisionHDR10+HDR10HLG
HDR Formats
Dolby VisionHDR10+HDR10HLG
HDR10 Yes
HDR10+ Yes
Dolby Vision Yes
HLG Yes
Motion Processing & Response 5
Specification Value
Native Refresh Rate 50 Hz / 60 Hz
Maximum Refresh Rate 60 Hz
Frame Interpolation Motion Rate (240)
Interpolation Technology Motion Rate
Interpolation Value 240
Console, VRR & Game Tools 1
Specification Value
Auto Low Latency Mode Yes
Broadcast Tuners & Reception 4
Specification Value
Built-In TV Tuner
Yes
Tuner Configuration Analog (NTSC/PAL/SECAM), ATSC, Clear QAM
North American Digital Tuner ATSC
Clear QAM Clear QAM
Compute, Memory & Storage 5
Specification Value
System on Chip Realtek RTD2875P
SoC Model Realtek RTD2875P
CPU Cores 4
RAM Capacity 2 GB
Internal Storage 16 GB / eMMC 5.1
Smart Platform & System 2
Specification Value
Smart TV Yes
Operating System Google TV
Streaming & Entertainment 3
Specification Value
Netflix Yes
Prime Video Yes
Disney+ Yes
Voice Assistants & Search 3
Specification Value
Voice Control Yes
Amazon Alexa Yes
Google Assistant Yes
HDMI Signal Interface 4
Specification Value
Total HDMI Ports
3
HDMI 2.0 Ports
3
HDMI CEC Yes
Enhanced Audio Return Channel Yes
USB, Audio & Legacy I/O 4
Specification Value
Total USB Ports
1
Ethernet Port Yes
Optical Audio Output Optical
Antenna Input Yes
Wireless, LAN & Casting 9
Specification Value
LAN Yes
Wi-Fi Yes
Wi-Fi Standards 802.11a, 802.11ac, 802.11b, 802.11g, 802.11n
Bluetooth Yes
Apple AirPlay Yes
Apple HomeKit Yes
Chromecast Yes
Google Cast Yes
Miracast Yes
Speaker Layout & Output 3
Specification Value
Built-In Speakers 2 x 15 W / 2.0 CH / 30 W / Dolby Atmos / DTS: X / DTS Virtual: X
Speaker Configuration 2.0 CH
Total Audio Output 30 W
Sound Formats & Enhancement 2
Specification Value
Dolby Atmos Yes
DTS:X Yes
Camera & Video Calling 1
Specification Value
Built-In Camera No
Panel-Only Size & Mass 5
Specification Value
Dimensions Without Stand 1667 mm x 960 mm x 74 mm (W x H x D)
Width Without Stand 1667 mm
Height Without Stand 960 mm
Depth Without Stand 74 mm
Weight Without Stand 18 kg / 39.68 lbs
Assembled TV Size & Mass 5
Specification Value
Dimensions With Stand 1667 mm x 1027 mm x 348 mm (W x H x D)
Width With Stand 1667 mm
Height With Stand 1027 mm
Depth With Stand 348 mm
Weight With Stand 18.2 kg / 40.12 lbs
Shipping Carton Measurements 5
Specification Value
Box Dimensions 1850 mm x 1125 mm x 178 mm (W x H x D)
Box Width 1850 mm
Box Height 1125 mm
Box Depth 178 mm
Box Weight 28.6 kg / 63.05 lbs
Exterior Styling & Stand Footprint 2
Specification Value
Stand Width 1290.3 mm / 129.03 cm / 50.7992 in / 4.2333 ft
Chassis Color Black
Wall Mounting & Installation 8
Specification Value What It Means
VESA Mount Yes
VESA Interface 300 x 300 mm
VESA Size 300 x 300 mm 300 x 300 mm is the mounting-hole pattern required for a compatible wall bracket.
Removable Stand Yes
Height Adjustment No
Swivel Adjustment No
Tilt Adjustment No
Portrait Mode No
Electrical Load & Efficiency 4
Specification Value
Power Input 100 V - 120 V / 220 V - 240 V
AC Frequency 50 Hz - 60 Hz
Standby Consumption 0.5 W
Annual Energy Consumption 437 kWh
Environmental Operating Limits 4
Specification Value
Operating Temperature 5 °C - 35 °C / 41 °F - 95 °F
Operating Humidity 20 % - 80 %
Storage Temperature -15 °C - 45 °C / 5 °F - 113 °F
Storage Humidity 10 % - 90 %
Picture Feature Inventory 2
Specification Value
Quantum Dot Color Yes
Wide Color Gamut Yes
Gaming Validation & Compatibility 1
Specification Value
ALLM Yes
In-the-Box Components 3
Specification Value
Remote Control Voice remote control
Remote Type Voice remote control
Remote Voice Control Yes

Frequently Asked Questions

01 What resolution does the TCL 75Q51K use? +
The supplied specifications list 3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p.
02 Is the TCL 75Q51K a 120 Hz gaming TV? +
No. The supplied native refresh specification is 50/60 Hz.
03 Which HDR formats does the TCL 75Q51K support? +
The source lists HDR10 / HLG / HDR / Dolby Vision / HDR10+.
04 How many HDMI ports does the TCL 75Q51K have? +
The source lists 3 with 2.0 versions noted.
05 What should be checked before mounting the TCL 75Q51K? +
Confirm the 300 x 300 mm pattern and 18.2 kg (kilograms) / 40.12 lbs (pounds) against the wall bracket and mounting surface.

Reviews

NO REVIEWS YET Own this display? Your rating helps calibrate the score for everyone.
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT SHEET № 75Q51K