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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Brightness
    1. HDR Brightness
    2. HDR Brightness In Game Mode
    3. SDR Brightness
  5. Black Level
    1. Contrast
    2. Lighting Zone Precision
    3. Lighting Zone Transitions
    4. Contrast And Dark Details In Game Mode
    5. Black Uniformity
  6. Picture Quality
    1. Contrast
    2. Blooming
    3. Lighting Zone Transitions
    4. Contrast And Dark Details In Game Mode
    5. HDR Brightness
    6. HDR Brightness In Game Mode
    7. PQ EOTF Tracking
    8. SDR Brightness
    9. Color Gamut
    10. Color Volume
    11. Pre Calibration
    12. Post Calibration
    13. Gray Uniformity
    14. Black Uniformity
    15. Viewing Angle
    16. Reflections
    17. HDR Native Gradient
    18. Low-Quality Content Smoothing
    19. Upscaling: Sharpness Processing
    20. Pixels
  7. Color
    1. SDR Color Volume
    2. HDR Color Volume
    3. SDR Pre-Calibration Color Accuracy
    4. SDR Post-Calibration Color Accuracy
    5. HDR Pre-Calibration Color Accuracy
    6. HDR Post-Calibration Color Accuracy
  8. Motion
    1. Response Time
    2. Flicker-Free
    3. Black Frame Insertion (BFI)
    4. Motion Interpolation
    5. Stutter
    6. 24p Judder
    7. Variable Refresh Rate
  9. Processing
    1. PQ EOTF Tracking
    2. Low-Quality Content Smoothing
    3. Upscaling: Sharpness Processing
    4. HDR Native Gradient
  10. Game Mode Responsiveness
    1. Input Lag
    2. Supported Resolutions
    3. Variable Refresh Rate
    4. CAD In Game Mode @ Max Refresh Rate
    5. CAD In Game Mode @ 120Hz
    6. CAD In Game Mode @ 60Hz
    7. PS5 Compatibility
    8. Xbox Series X|S Compatibility
  11. Motion Handling
    1. Stutter
    2. 24p Judder
    3. Response Time
    4. Flicker
    5. Black Frame Insertion (BFI)
    6. Motion Interpolation
  12. Reflections
    1. Direct Reflections
    2. Ambient Black Level Raise
    3. Total Reflected Light
    4. Ambient Color Saturation
  13. Panel
    1. Viewing Angle
    2. Gray Uniformity
    3. Panel Technology
  14. Inputs
    1. Input Lag
    2. Supported Resolutions
    3. PS5 Compatibility
    4. Xbox Series X|S Compatibility
    5. Input Specifications
    6. Input Photos
    7. Audio Passthrough
    8. Total Inputs
    9. HDR Format Support
  15. Design
    1. Style
    2. Accelerated Longevity Test
    3. Stand
    4. Back
    5. Borders
    6. Thickness
    7. Build Quality
  16. Smart Features
    1. Interface
    2. Ad-Free
    3. Apps and Features
    4. Remote
    5. TV Controls
    6. In The Box
    7. Misc
  17. Sound Quality
    1. Frequency Response
    2. Distortion
  18. Comments

TCL QM8/QM851G QLED vs TCL QM8/QM850G QLED

Side-by-Side Comparison

Products

TCL QM8/QM851G QLED
TCL QM8/QM850G QLED

Tested using Methodology v2.0

Updated Mar 26, 2025 03:59 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.11

Updated Jan 23, 2025 08:22 PM

SEE PRICE
Amazon.com
TCL QM8/QM851G QLED Picture
TCL QM8/QM850G QLED Picture
  1. Recommended in 2 articles:
  2. Brands
  3. TCL

Variants

  • 65QM851G (65")
  • 75QM851G (75")
  • 85QM851G (85")
  • 98QM851G (98")
  • 65QM850G (65")
  • 75QM850G (75")
  • 85QM850G (85")
  • 98QM850G (98")

Our Verdict

TCL QM8/QM851G QLED

TCL QM8/QM850G QLED

The TCL QM8/QM851G QLED is a bit better than the TCL QM8/QM850G QLED. The QM851G has better contrast, so it displays deeper blacks in a dark room, with a bit less blooming. The QM851G also gets brighter in HDR, so very bright highlights stand out a bit more on it. Additionally, the QM851G has better pre-calibration SDR accuracy, slightly better upscaling, and its color volume is a bit better. However, the QM850G has better PQ EOTF tracking, so it displays a more accurate image in HDR.

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Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 

8.2
8.4

Direct Reflections 
 

6.3
9.1

Full Comparison

Brightness

HDR Brightness 
 

9.4
9.4

HDR Hallway Photo  

TCL QM8/QM851G QLED HDR Hallway Photo
TCL QM8/QM850G QLED HDR Hallway Photo

HDR Cityscape Photo  

TCL QM8/QM851G QLED HDR Cityscape Photo
TCL QM8/QM850G QLED HDR Cityscape Photo

HDR Landscape Photo  

TCL QM8/QM851G QLED HDR Landscape Photo
TCL QM8/QM850G QLED HDR Landscape Photo

Hallway Lights (~1950 cd/m²) 
 

1,472 cd/m²
1,303 cd/m²

Yellow Skyscraper (~700 cd/m²) 
 

611 cd/m²
514 cd/m²

Landscape Pool (~300 cd/m²) 
 

473 cd/m²
522 cd/m²

Peak 2% Window 
 

2,564 cd/m²
1,626 cd/m²

Peak 10% Window 
 

3,467 cd/m²
2,005 cd/m²

Peak 25% Window 
 

3,338 cd/m²
1,716 cd/m²

Peak 50% Window 
 

1,814 cd/m²
1,495 cd/m²

Peak 100% Window 
 

967 cd/m²
863 cd/m²

Sustained 2% Window 
 

2,497 cd/m²
1,609 cd/m²

Sustained 10% Window 
 

3,319 cd/m²
1,915 cd/m²

Sustained 25% Window 
 

3,253 cd/m²
1,689 cd/m²

Sustained 50% Window 
 

1,810 cd/m²
1,485 cd/m²

Sustained 100% Window 
 

965 cd/m²
862 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.060
0.038
Show text

HDR Brightness In Game Mode 
 

9.4
9.4

HDR Hallway Photo  

TCL QM8/QM851G QLED HDR Hallway Photo
TCL QM8/QM850G QLED HDR Hallway Photo

HDR Cityscape Photo  

TCL QM8/QM851G QLED HDR Cityscape Photo
TCL QM8/QM850G QLED HDR Cityscape Photo

HDR Landscape Photo  

TCL QM8/QM851G QLED HDR Landscape Photo
TCL QM8/QM850G QLED HDR Landscape Photo

Hallway Lights (~1950 cd/m²) 
 

1,393 cd/m²
1,245 cd/m²

Yellow Skyscraper (~700 cd/m²) 
 

625 cd/m²
512 cd/m²

Landscape Pool (~300 cd/m²) 
 

447 cd/m²
534 cd/m²

Peak 2% Window 
 

4,167 cd/m²
1,482 cd/m²

Peak 10% Window 
 

3,425 cd/m²
1,977 cd/m²

Peak 25% Window 
 

3,366 cd/m²
1,788 cd/m²

Peak 50% Window 
 

1,796 cd/m²
1,534 cd/m²

Peak 100% Window 
 

956 cd/m²
866 cd/m²

Sustained 2% Window 
 

2,384 cd/m²
1,471 cd/m²

Sustained 10% Window 
 

3,300 cd/m²
1,884 cd/m²

Sustained 25% Window 
 

3,251 cd/m²
1,753 cd/m²

Sustained 50% Window 
 

1,792 cd/m²
1,522 cd/m²

Sustained 100% Window 
 

953 cd/m²
864 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.060
0.038
Show text

SDR Brightness 
 

9.5
9.4

Real Scene Peak Brightness 
 

1,108 cd/m²
1,081 cd/m²

Peak 2% Window 
 

4,043 cd/m²
2,868 cd/m²

Peak 10% Window 
 

3,355 cd/m²
2,076 cd/m²

Peak 25% Window 
 

3,291 cd/m²
2,573 cd/m²

Peak 50% Window 
 

1,767 cd/m²
1,538 cd/m²

Peak 100% Window 
 

940 cd/m²
868 cd/m²

Sustained 2% Window 
 

2,320 cd/m²
1,709 cd/m²

Sustained 10% Window 
 

3,238 cd/m²
2,015 cd/m²

Sustained 25% Window 
 

3,171 cd/m²
1,824 cd/m²

Sustained 50% Window 
 

1,761 cd/m²
1,530 cd/m²

Sustained 100% Window 
 

938 cd/m²
865 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.060
0.041
Show text
Black Level

Contrast 
 

8.9
9.2

Contrast Picture  

TCL QM8/QM851G QLED Contrast Picture
TCL QM8/QM850G QLED Contrast Picture

Contrast 
 

201,150 : 1
114,057 : 1

Native Contrast 
 

6,515 : 1
5,533 : 1
Show text

Lighting Zone Precision 
 

8.5
8.0

Lighting Zone Precision Picture  

TCL QM8/QM851G QLED Lighting Zone Precision Picture
TCL QM8/QM850G QLED Lighting Zone Precision Picture
Show text

Lighting Zone Transitions 
 

8.5
8.0

Preferred LD Video, Moving Object  

Local Dimming 
 

Yes
Yes

Backlight 
 

Full-Array
Full-Array

Dimming Zone Count Of The Tested TV 
 

2,880
1,080
Show text

Contrast And Dark Details In Game Mode 
 

9.0
9.0

Lighting Zone Precision Photo In Game Mode  

TCL QM8/QM851G QLED Lighting Zone Precision Photo In Game Mode
TCL QM8/QM850G QLED Lighting Zone Precision Photo In Game Mode

Preferred LD Video, Moving Object In Game Mode  

Game Transitions With VRR And Preferred LD  

Show text

Black Uniformity 
 

8.9
9.6

Black Uniformity Picture With Preferred Local Dimming  

TCL QM8/QM851G QLED Black Uniformity Picture With Preferred Local Dimming
TCL QM8/QM850G QLED Black Uniformity Picture With Preferred Local Dimming

Std. Dev. 
 

0.154%
0.185%

Native Black Uniformity Picture  

TCL QM8/QM851G QLED Native Black Uniformity Picture
TCL QM8/QM850G QLED Native Black Uniformity Picture

Native Std. Dev. 
 

0.569%
0.821%
Show text
Picture Quality

Contrast 
 

8.9
9.2

Contrast Picture  

TCL QM8/QM851G QLED Contrast Picture
TCL QM8/QM850G QLED Contrast Picture

Contrast 
 

201,150 : 1
114,057 : 1

Native Contrast 
 

6,515 : 1
5,533 : 1
Show text

Blooming 
 

8.5
8.0

Blooming Photo  

TCL QM8/QM851G QLED Blooming Photo
TCL QM8/QM850G QLED Blooming Photo
Show text

Lighting Zone Transitions 
 

8.5
8.0

Preferred LD Video, Moving Object  

Local Dimming 
 

Yes
Yes

Backlight 
 

Full-Array
Full-Array

Dimming Zones Count Of Tested TV 
 

2,880
1,080
Show text

Contrast And Dark Details In Game Mode 
 

9.0
9.0

Blooming Photo In Game Mode  

TCL QM8/QM851G QLED Blooming Photo In Game Mode
TCL QM8/QM850G QLED Blooming Photo In Game Mode

Preferred LD Video, Moving Object In Game Mode  

Game Transitions With VRR And Preferred LD  

Show text

HDR Brightness 
 

9.4
9.4

HDR Hallway Photo  

TCL QM8/QM851G QLED HDR Hallway Photo
TCL QM8/QM850G QLED HDR Hallway Photo

HDR Cityscape Photo  

TCL QM8/QM851G QLED HDR Cityscape Photo
TCL QM8/QM850G QLED HDR Cityscape Photo

HDR Landscape Photo  

TCL QM8/QM851G QLED HDR Landscape Photo
TCL QM8/QM850G QLED HDR Landscape Photo

Hallway Lights (~1950 cd/m²) 
 

1,472 cd/m²
1,303 cd/m²

Yellow Skyscraper (~700 cd/m²) 
 

611 cd/m²
514 cd/m²

Landscape Pool (~300 cd/m²) 
 

473 cd/m²
522 cd/m²

Peak 2% Window 
 

2,564 cd/m²
1,626 cd/m²

Peak 10% Window 
 

3,467 cd/m²
2,005 cd/m²

Peak 25% Window 
 

3,338 cd/m²
1,716 cd/m²

Peak 50% Window 
 

1,814 cd/m²
1,495 cd/m²

Peak 100% Window 
 

967 cd/m²
863 cd/m²

Sustained 2% Window 
 

2,497 cd/m²
1,609 cd/m²

Sustained 10% Window 
 

3,319 cd/m²
1,915 cd/m²

Sustained 25% Window 
 

3,253 cd/m²
1,689 cd/m²

Sustained 50% Window 
 

1,810 cd/m²
1,485 cd/m²

Sustained 100% Window 
 

965 cd/m²
862 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.060
0.038
Show text

HDR Brightness In Game Mode 
 

9.4
9.4

HDR Hallway Photo  

TCL QM8/QM851G QLED HDR Hallway Photo
TCL QM8/QM850G QLED HDR Hallway Photo

HDR Cityscape Photo  

TCL QM8/QM851G QLED HDR Cityscape Photo
TCL QM8/QM850G QLED HDR Cityscape Photo

HDR Landscape Photo  

TCL QM8/QM851G QLED HDR Landscape Photo
TCL QM8/QM850G QLED HDR Landscape Photo

Hallway Lights (~1950 cd/m²) 
 

1,393 cd/m²
1,245 cd/m²

Yellow Skyscraper (~700 cd/m²) 
 

625 cd/m²
512 cd/m²

Landscape Pool (~300 cd/m²) 
 

447 cd/m²
534 cd/m²

Peak 2% Window 
 

4,167 cd/m²
1,482 cd/m²

Peak 10% Window 
 

3,425 cd/m²
1,977 cd/m²

Peak 25% Window 
 

3,366 cd/m²
1,788 cd/m²

Peak 50% Window 
 

1,796 cd/m²
1,534 cd/m²

Peak 100% Window 
 

956 cd/m²
866 cd/m²

Sustained 2% Window 
 

2,384 cd/m²
1,471 cd/m²

Sustained 10% Window 
 

3,300 cd/m²
1,884 cd/m²

Sustained 25% Window 
 

3,251 cd/m²
1,753 cd/m²

Sustained 50% Window 
 

1,792 cd/m²
1,522 cd/m²

Sustained 100% Window 
 

953 cd/m²
864 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.060
0.038
Show text

PQ EOTF Tracking 
 

3.9
7.5

PQ EOTF Graph  

See details on graph tool
See details on graph tool

600 Nit Tracking Delta 
 

0.0313
0.0159

1000 Nit Tracking Delta 
 

0.0314
0.0186

4000 Nit Tracking Delta 
 

0.0314
0.0177
Show text

SDR Brightness 
 

9.5
9.4

Real Scene Peak Brightness 
 

1,108 cd/m²
1,081 cd/m²

Peak 2% Window 
 

4,043 cd/m²
2,868 cd/m²

Peak 10% Window 
 

3,355 cd/m²
2,076 cd/m²

Peak 25% Window 
 

3,291 cd/m²
2,573 cd/m²

Peak 50% Window 
 

1,767 cd/m²
1,538 cd/m²

Peak 100% Window 
 

940 cd/m²
868 cd/m²

Sustained 2% Window 
 

2,320 cd/m²
1,709 cd/m²

Sustained 10% Window 
 

3,238 cd/m²
2,015 cd/m²

Sustained 25% Window 
 

3,171 cd/m²
1,824 cd/m²

Sustained 50% Window 
 

1,761 cd/m²
1,530 cd/m²

Sustained 100% Window 
 

938 cd/m²
865 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.060
0.041
Show text

Color Gamut 
 

8.7

Wide Color Gamut 
 

Yes

Color Gamut DCI-P3 Picture  

TCL QM8/QM850G QLED Color Gamut DCI-P3 Picture

DCI P3 xy 
 

94.59%

DCI P3 uv 
 

97.31%

Color Gamut Rec.2020 Picture  

TCL QM8/QM850G QLED Color Gamut Rec.2020 Picture

Rec 2020 xy 
 

75.81%

Rec 2020 uv 
 

80.57%
Show text

Color Volume 
 

9.0
9.0

P3 Color Volume ITP Picture  

TCL QM8/QM851G QLED P3 Color Volume ITP Picture
TCL QM8/QM850G QLED P3 Color Volume ITP Picture

1,000 cd/m² DCI P3 Coverage ITP 
 

85.2%
83.3%

2020 Color Volume ITP Picture  

TCL QM8/QM851G QLED 2020 Color Volume ITP Picture
TCL QM8/QM850G QLED 2020 Color Volume ITP Picture

10,000 cd/m² Rec 2020 Coverage ITP 
 

54.8%
49.4%

White Luminance 
 

2,513 cd/m²
1,694 cd/m²

Red Luminance 
 

585 cd/m²
404 cd/m²

Green Luminance 
 

1,885 cd/m²
1,250 cd/m²

Blue Luminance 
 

189 cd/m²
128 cd/m²

Cyan Luminance 
 

2,075 cd/m²
1,378 cd/m²

Magenta Luminance 
 

773 cd/m²
532 cd/m²

Yellow Luminance 
 

2,451 cd/m²
1,660 cd/m²
Show text

Pre Calibration 
 

7.5
6.8

Pre White Balance Picture  

TCL QM8/QM851G QLED Pre White Balance Picture
TCL QM8/QM850G QLED Pre White Balance Picture

Pre Gamma Curve Picture  

TCL QM8/QM851G QLED Pre Gamma Curve Picture
TCL QM8/QM850G QLED Pre Gamma Curve Picture

Pre Color Picture  

TCL QM8/QM851G QLED Pre Color Picture
TCL QM8/QM850G QLED Pre Color Picture

White Balance dE 
 

3.36
4.74

Color dE 
 

2.07
2.18

Gamma 
 

2.09
2.24

Color Temperature 
 

6,127 K
5,961 K

Picture Mode 
 

Movie
Movie

Color Temp Setting 
 

Warm -5
Warm

Gamma Setting 
 

2.2
2.2
Show text

Post Calibration 
 

9.6
9.4

Post White Balance Picture  

TCL QM8/QM851G QLED Post White Balance Picture
TCL QM8/QM850G QLED Post White Balance Picture

Post Gamma Curve Picture  

TCL QM8/QM851G QLED Post Gamma Curve Picture
TCL QM8/QM850G QLED Post Gamma Curve Picture

Post Color Picture  

TCL QM8/QM851G QLED Post Color Picture
TCL QM8/QM850G QLED Post Color Picture

White Balance dE 
 

0.24
0.59

Color dE 
 

0.82
1.08

Gamma 
 

2.20
2.15

Color Temperature 
 

6,483 K
6,470 K

White Balance Calibration 
 

20 point
20 point

Color Calibration 
 

Yes
Yes
Show text

Gray Uniformity 
 

7.1
7.6

50% Uniformity Picture  

TCL QM8/QM851G QLED 50% Uniformity Picture
TCL QM8/QM850G QLED 50% Uniformity Picture

50% Std. Dev. 
 

2.225%
1.574%

50% DSE 
 

0.170%
0.199%

5% Uniformity Picture  

TCL QM8/QM851G QLED 5% Uniformity Picture
TCL QM8/QM850G QLED 5% Uniformity Picture

5% Std. Dev. 
 

0.670%
0.335%

5% DSE 
 

0.093%
0.110%
Show text

Black Uniformity 
 

8.9
9.6

Black Uniformity Picture With Preferred Local Dimming  

TCL QM8/QM851G QLED Black Uniformity Picture With Preferred Local Dimming
TCL QM8/QM850G QLED Black Uniformity Picture With Preferred Local Dimming

Std. Dev. 
 

0.154%
0.185%

Native Black Uniformity Picture  

TCL QM8/QM851G QLED Native Black Uniformity Picture
TCL QM8/QM850G QLED Native Black Uniformity Picture

Native Std. Dev. 
 

0.569%
0.821%
Show text

Viewing Angle 
 

6.2
5.5

Viewing Angle Video  

Chroma Graph  

TCL QM8/QM851G QLED Chroma Graph
TCL QM8/QM850G QLED Chroma Graph

Color Washout 
 

23°
24°

Hue Graph  

TCL QM8/QM851G QLED Hue Graph
TCL QM8/QM850G QLED Hue Graph

Color Shift 
 

31°
31°

Lightness Graph  

TCL QM8/QM851G QLED Lightness Graph
TCL QM8/QM850G QLED Lightness Graph

Brightness Loss 
 

30°
32°

Black Level Raise 
 

18°
19°

Gamma Shift 
 

18°
18°
Show text

Reflections 
 

6.3
9.1

Reflections Picture  

TCL QM8/QM850G QLED Reflections Picture

Average Room Off Picture  

TCL QM8/QM850G QLED Average Room Off Picture

Bright Room Off Picture  

TCL QM8/QM851G QLED Bright Room Off Picture
TCL QM8/QM850G QLED Bright Room Off Picture

Screen Finish 
 

Glossy
Glossy

Total Reflections 
 

1.8%

Indirect Reflections 
 

0.4%

Calculated Direct Reflections 
 

1.4%
Show text

HDR Native Gradient 
 

7.8
8.0

HDR Gradient Picture  

TCL QM8/QM851G QLED HDR Gradient Picture
TCL QM8/QM850G QLED HDR Gradient Picture

100% Black to 50% Gray  

6.0
6.0

50% Gray to 100% White  

6.0
8.0

100% Black to 50% Red  

8.0
6.0

50% Red to 100% Red  

10
8.0

100% Black to 50% Green  

8.0
10

50% Green to 100% Green  

8.0
8.0

100% Black to 50% Blue  

8.0
10

50% Blue to 100% Blue  

8.0
8.0
Show text

Low-Quality Content Smoothing 
 

8.1
8.1

Low-Quality Content Smoothing Picture  

TCL QM8/QM851G QLED Low-Quality Content Smoothing Picture
TCL QM8/QM850G QLED Low-Quality Content Smoothing Picture

Smoothing 
 

8.5
9.0

Detail Preservation 
 

7.0
6.0
Show text

Upscaling: Sharpness Processing 
 

7.5
7.0

Sharpness Picture - 480p  

TCL QM8/QM851G QLED Sharpness Picture - 480p
TCL QM8/QM850G QLED Sharpness Picture - 480p
Show text

Pixels 
 

Pixels Picture  

TCL QM8/QM851G QLED Pixels Picture
TCL QM8/QM850G QLED Pixels Picture

Subpixel Layout 
 

BGR
BGR

Type  

LED
LED

Sub-Type 
 

VA
VA
Show text
Color

SDR Color Volume 
 

7.7

DCI-P3 Gamut Rings  

TCL QM8/QM851G QLED DCI-P3 Gamut Rings

CIELAB DCI-P3 Coverage 
 

90.94%

BT.2020 Gamut Rings  

TCL QM8/QM851G QLED BT.2020 Gamut Rings

CIELAB BT.2020 Coverage 
 

67.01%
Show text

HDR Color Volume 
 

9.0
9.0

P3 Color Volume ITP Picture  

TCL QM8/QM851G QLED P3 Color Volume ITP Picture
TCL QM8/QM850G QLED P3 Color Volume ITP Picture

1,000 cd/m² DCI P3 Coverage ITP 
 

85.2%
83.3%

2020 Color Volume ITP Picture  

TCL QM8/QM851G QLED 2020 Color Volume ITP Picture
TCL QM8/QM850G QLED 2020 Color Volume ITP Picture

10,000 cd/m² BT.2020 Coverage ITP 
 

54.8%
49.4%

White Luminance 
 

2,513 cd/m²
1,694 cd/m²

Red Luminance 
 

585 cd/m²
404 cd/m²

Green Luminance 
 

1,885 cd/m²
1,250 cd/m²

Blue Luminance 
 

189 cd/m²
128 cd/m²

Cyan Luminance 
 

2,075 cd/m²
1,378 cd/m²

Magenta Luminance 
 

773 cd/m²
532 cd/m²

Yellow Luminance 
 

2,451 cd/m²
1,660 cd/m²
Show text

SDR Pre-Calibration Color Accuracy 
 

7.5
6.8

Pre White Balance Picture  

TCL QM8/QM851G QLED Pre White Balance Picture
TCL QM8/QM850G QLED Pre White Balance Picture

Pre Gamma Curve Picture  

TCL QM8/QM851G QLED Pre Gamma Curve Picture
TCL QM8/QM850G QLED Pre Gamma Curve Picture

Pre Color Picture  

TCL QM8/QM851G QLED Pre Color Picture
TCL QM8/QM850G QLED Pre Color Picture

White Balance dE 2000 
 

3.36
4.74

Color dE 2000 
 

2.07
2.18

Gamma 
 

2.09
2.24

Color Temperature 
 

6,127 K
5,961 K

Picture Mode 
 

Movie
Movie

Color Temp Setting 
 

Warm -5
Warm

Gamma Setting 
 

2.2
2.2
Show text

SDR Post-Calibration Color Accuracy 
 

9.6
9.4

Post White Balance Picture  

TCL QM8/QM851G QLED Post White Balance Picture
TCL QM8/QM850G QLED Post White Balance Picture

Post Gamma Curve Picture  

TCL QM8/QM851G QLED Post Gamma Curve Picture
TCL QM8/QM850G QLED Post Gamma Curve Picture

Post Color Picture  

TCL QM8/QM851G QLED Post Color Picture
TCL QM8/QM850G QLED Post Color Picture

White Balance dE 2000 
 

0.24
0.59

Color dE 2000 
 

0.82
1.08

Gamma 
 

2.20
2.15

Color Temperature 
 

6,483 K
6,470 K

White Balance Calibration 
 

20 point
20 point

Color Calibration 
 

Yes
Yes
Show text

HDR Pre-Calibration Color Accuracy 
 

5.7

HDR Pre White Balance Picture  

TCL QM8/QM851G QLED HDR Pre White Balance Picture

HDR Pre Color Picture  

TCL QM8/QM851G QLED HDR Pre Color Picture

White Balance dE ITP 
 

41.45

Color dE ITP 
 

49.6

Color Temperature 
 

6,308 K

Picture Mode 
 

Movie
Show text

HDR Post-Calibration Color Accuracy 
 

7.0

HDR Post White Balance Picture  

TCL QM8/QM851G QLED HDR Post White Balance Picture

HDR Post Color Picture  

TCL QM8/QM851G QLED HDR Post Color Picture

White Balance dE ITP 
 

19.70

Color dE ITP 
 

8.60

Color Temperature 
 

6,276 K
Show text
Motion

Response Time 
 

8.1
8.5

Motion Blur Picture  

TCL QM8/QM851G QLED Motion Blur Picture
TCL QM8/QM850G QLED Motion Blur Picture

Response Time Chart  

TCL QM8/QM850G QLED Response Time Chart

80% Response Time 
 

4.0 ms

100% Response Time 
 

8.9 ms
Show text

Flicker-Free 
 

0.0
9.0

Backlight chart 
 

TCL QM8/QM851G QLED Backlight chart
TCL QM8/QM850G QLED Backlight chart

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

30,000 Hz
4,000 Hz
Show text

Black Frame Insertion (BFI) 
 

BFI Picture  

TCL QM8/QM851G QLED BFI Picture
TCL QM8/QM850G QLED BFI Picture

BFI Frequency Picture  

TCL QM8/QM851G QLED BFI Frequency Picture
TCL QM8/QM850G QLED BFI Frequency Picture

Optional BFI 
 

Yes
Yes

Min Flicker For 60 fps 
 

60 Hz
60 Hz

60Hz For 60 fps 
 

Yes
Yes

120Hz For 120 fps 
 

Yes
Yes

Min Flicker for 60 fps in Game Mode 
 

60 Hz
60 Hz
Show text

Motion Interpolation 
 

Motion Interpolation (30 fps) Picture  

TCL QM8/QM851G QLED Motion Interpolation (30 fps) Picture
TCL QM8/QM850G QLED Motion Interpolation (30 fps) Picture

Motion Interpolation (30 fps) 
 

Yes
Yes

Motion Interpolation (60 fps) Picture  

TCL QM8/QM851G QLED Motion Interpolation (60 fps) Picture
TCL QM8/QM850G QLED Motion Interpolation (60 fps) Picture

Motion Interpolation (60 fps) 
 

Yes
Yes
Show text

Stutter 
 

6.1
6.5

Frame Hold Time @ 24 fps 
 

36.2 ms
32.8 ms

Frame Hold Time @ 60 fps 
 

11.2 ms
7.8 ms
Show text

24p Judder 
 

10
10

Judder-Free 24p 
 

Yes
Yes

Judder-Free 24p via 60p 
 

Yes
Yes

Judder-Free 24p via 60i 
 

Yes
Yes

Judder-Free 24p via Native Apps 
 

Yes
Yes
Show text

Variable Refresh Rate 
 

8.8
9.6

Native Refresh Rate 
 

144Hz
144 Hz

Variable Refresh Rate 
 

Yes
Yes

HDMI Forum VRR 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC Compatible 
 

Yes
Yes

4k VRR Maximum 
 

144 Hz
144 Hz

4k VRR Minimum 
 

< 20 Hz
< 20 Hz

1080p VRR Maximum 
 

240 Hz
240 Hz

1080p VRR Minimum 
 

< 20 Hz
< 20 Hz

1440p VRR Maximum 
 

144 Hz

1440p VRR Minimum 
 

< 20 Hz

VRR + Local Dimming  

Yes
Yes
Show text
Processing

PQ EOTF Tracking 
 

3.9
7.5

PQ EOTF Graph  

See details on graph tool
See details on graph tool

600 Nit Tracking Delta 
 

0.0313
0.0159

1000 Nit Tracking Delta 
 

0.0314
0.0186

4000 Nit Tracking Delta 
 

0.0314
0.0177
Show text

Low-Quality Content Smoothing 
 

8.1
8.1

Low-Quality Content Smoothing Picture  

TCL QM8/QM851G QLED Low-Quality Content Smoothing Picture
TCL QM8/QM850G QLED Low-Quality Content Smoothing Picture

Smoothing 
 

8.5
9.0

Detail Preservation 
 

7.0
6.0
Show text

Upscaling: Sharpness Processing 
 

7.5
7.0

Sharpness Picture - 480p  

TCL QM8/QM851G QLED Sharpness Picture - 480p
TCL QM8/QM850G QLED Sharpness Picture - 480p
Show text

HDR Native Gradient 
 

7.8
8.0

HDR Gradient Picture  

TCL QM8/QM851G QLED HDR Gradient Picture
TCL QM8/QM850G QLED HDR Gradient Picture

100% Black To 50% Gray  

6.0
6.0

50% Gray To 100% White  

6.0
8.0

100% Black To 50% Red  

8.0
6.0

50% Red To 100% Red  

10
8.0

100% Black To 50% Green  

8.0
10

50% Green To 100% Green  

8.0
8.0

100% Black To 50% Blue  

8.0
10

50% Blue To 100% Blue  

8.0
8.0
Show text
Game Mode Responsiveness

Input Lag 
 

8.4
9.4

1080p @ 60Hz 
 

14.1 ms
14.3 ms

1080p @ 60Hz Outside Game Mode 
 

125.0 ms
127.6 ms

1080p @ 120Hz 
 

6.1 ms
6.1 ms

1080p @ Max Refresh Rate 
 

8.0 ms
14.9 ms

4k @ 60Hz 
 

14.1 ms
14.2 ms

4k @ 60Hz @ 4:4:4 
 

15.0 ms
26.4 ms

4k @ 60Hz Outside Game Mode 
 

124.7 ms
127.7 ms

4k @ 60Hz With Interpolation 
 

116.5 ms
121.2 ms

4k @ 120Hz 
 

5.9 ms
6.3 ms

4k @ Max Refresh Rate 
 

5.0 ms
15.7 ms

8k @ 60Hz 
 

N/A
N/A
Show text

Supported Resolutions 
 

9.7
9.3

Resolution  

4k
4k

480p @ 59.94Hz (Widescreen) 
 

Yes
Yes

720p @ 59.94Hz 
 

Yes
Yes

1080p @ 60Hz @ 4:4:4 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

1080p @ 144Hz 
 

Yes
Yes

4k @ 60Hz 
 

Yes
Yes

4k @ 60Hz @ 4:4:4 
 

Yes
Yes

4k @ 120Hz 
 

Yes
Yes

4k @ 120Hz @ 4:4:4 
 

Yes
No

4k @ 144Hz 
 

Yes
Yes

8k @ 30Hz Or 24Hz 
 

No
No

8k @ 60Hz 
 

No
No
Show text

Variable Refresh Rate 
 

8.8
9.6

Native Refresh Rate 
 

144Hz
144 Hz

Variable Refresh Rate 
 

Yes
Yes

HDMI Forum VRR 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC Compatible 
 

Yes
Yes

4k VRR Maximum 
 

144 Hz
144 Hz

4k VRR Minimum 
 

< 20 Hz
< 20 Hz

1080p VRR Maximum 
 

240 Hz
240 Hz

1080p VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR + Local Dimming  

Yes
Yes
Show text

CAD In Game Mode @ Max Refresh Rate 
 

7.5

Pursuit Photo Max Refresh  

TCL QM8/QM851G QLED Pursuit Photo Max Refresh

CAD Heatmap Max Refresh 
 

TCL QM8/QM851G QLED CAD Heatmap Max Refresh

Transition At Max Refresh 
 

transition-game-max-0-31
0 to 31

Avg. CAD 
 

173

Best 10% CAD 
 

71

Worst 10% CAD 
 

303
Show text

CAD In Game Mode @ 120Hz 
 

6.9

Pursuit Photo 120Hz  

TCL QM8/QM851G QLED Pursuit Photo 120Hz

CAD Heatmap 120Hz  

TCL QM8/QM851G QLED CAD Heatmap 120Hz

Transition At 120Hz 
 

transition-game-120-0-31
0 to 31

Avg. CAD 
 

200

Best 10% CAD 
 

69

Worst 10% CAD 
 

482
Show text

CAD In Game Mode @ 60Hz 
 

7.0

Pursuit Photo 60Hz  

TCL QM8/QM851G QLED Pursuit Photo 60Hz

CAD Heatmap 60Hz 
 

TCL QM8/QM851G QLED CAD Heatmap 60Hz

Transition 60Hz 
 

transition-game-60-0-31
0 to 31

Avg. CAD 
 

217

Best 10% CAD 
 

71

Worst 10% CAD 
 

372
Show text

PS5 Compatibility 
 

PS5 Screenshot  

TCL QM8/QM851G QLED PS5 Screenshot
TCL QM8/QM850G QLED PS5 Screenshot

Auto Low Latency Mode (ALLM) 
 

Yes
Yes

4k @ 120Hz 
 

Yes
Yes

1440p @ 120Hz 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

HDR 
 

Yes
Yes

VRR 
 

Yes
Yes
Show text

Xbox Series X|S Compatibility 
 

Xbox Series X Screenshot  

TCL QM8/QM851G QLED Xbox Series X Screenshot
TCL QM8/QM850G QLED Xbox Series X Screenshot

Auto Low Latency Mode (ALLM) 
 

Yes
Yes

4k @ 120Hz 
 

Yes
Yes

1440p @ 120Hz 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

HDR 
 

Yes
Yes

VRR 
 

Yes
Yes
Show text
Motion Handling

Stutter 
 

6.1
6.5

Frame Hold Time @ 24 fps 
 

36.2 ms
32.8 ms

Frame Hold Time @ 60 fps 
 

11.2 ms
7.8 ms
Show text

24p Judder 
 

10
10

Judder-Free 24p 
 

Yes
Yes

Judder-Free 24p via 60p 
 

Yes
Yes

Judder-Free 24p via 60i 
 

Yes
Yes

Judder-Free 24p via Native Apps 
 

Yes
Yes
Show text

Response Time 
 

8.1
8.5

Pursuit Photo 60Hz  

TCL QM8/QM851G QLED Pursuit Photo 60Hz
TCL QM8/QM850G QLED Pursuit Photo 60Hz

Response Time Heatmap 60Hz 
 

TCL QM8/QM851G QLED Response Time Heatmap 60Hz

Transition At 60Hz 
 

transition-60-0-31
0 to 31

First Response Time 
 

5.5 ms

Total Response Time 
 

10.6 ms

Worst 10% Response Time 
 

22.9 ms
Show text

Flicker 
 

Backlight chart 
 

TCL QM8/QM851G QLED Backlight chart
TCL QM8/QM850G QLED Backlight chart

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

30,000 Hz
4,000 Hz
Show text

Black Frame Insertion (BFI) 
 

BFI Picture  

TCL QM8/QM851G QLED BFI Picture
TCL QM8/QM850G QLED BFI Picture

BFI Frequency Picture  

TCL QM8/QM851G QLED BFI Frequency Picture
TCL QM8/QM850G QLED BFI Frequency Picture

Optional BFI 
 

Yes
Yes

Min Flicker For 60 fps 
 

60 Hz
60 Hz

60Hz For 60 fps 
 

Yes
Yes

120Hz For 120 fps 
 

Yes
Yes

Min Flicker For 60 fps In Game Mode 
 

60 Hz
60 Hz
Show text

Motion Interpolation 
 

Motion Interpolation (30 fps) Picture  

TCL QM8/QM851G QLED Motion Interpolation (30 fps) Picture
TCL QM8/QM850G QLED Motion Interpolation (30 fps) Picture

Motion Interpolation (30 fps) 
 

Yes
Yes

Motion Interpolation (60 fps) Picture  

TCL QM8/QM851G QLED Motion Interpolation (60 fps) Picture
TCL QM8/QM850G QLED Motion Interpolation (60 fps) Picture

Motion Interpolation (60 fps) 
 

Yes
Yes
Show text
Reflections

Direct Reflections 
 

6.3
9.1

Ring Light Picture  

TCL QM8/QM851G QLED Ring Light Picture

Direct Reflections Graph  

See details on graph tool

Peak Direct Reflection Intensity 
 

46.5%

Screen Finish 
 

Glossy
Glossy
Show text

Ambient Black Level Raise 
 

9.1

Black Level Raise Picture  

TCL QM8/QM851G QLED Black Level Raise Picture

Bright Room Black Level Raise Graph  

See details on graph tool

Black Luminance @ 0 lx 
 

0.00 cd/m²

Black Luminance @ 1000 lx 
 

0.38 cd/m²
Show text

Total Reflected Light 
 

7.8

Bright Room Off Picture  

TCL QM8/QM851G QLED Bright Room Off Picture
TCL QM8/QM850G QLED Bright Room Off Picture

Ring Picture Total Reflection  

TCL QM8/QM851G QLED Ring Picture Total Reflection

Total Reflected Light Intensity 
 

12,962% ⋅ pixel

Diffraction Artifacts 
 

Yes
Show text

Ambient Color Saturation 
 

8.4

Bright Room Color Volume Graph  

See details on graph tool

Low-Luminance Colors @ 1000 lx 
 

71.72%

Mid-Luminance Colors @ 1000 lx 
 

68.86%

High-Luminance Colors @ 1000 lx 
 

59.50%
Show text
Panel

Viewing Angle 
 

6.2
5.5

Viewing Angle Video  

Chroma Graph  

TCL QM8/QM851G QLED Chroma Graph
TCL QM8/QM850G QLED Chroma Graph

Color Washout 
 

23°
24°

Hue Graph  

TCL QM8/QM851G QLED Hue Graph
TCL QM8/QM850G QLED Hue Graph

Color Shift 
 

31°
31°

Lightness Graph  

TCL QM8/QM851G QLED Lightness Graph
TCL QM8/QM850G QLED Lightness Graph

Brightness Loss 
 

30°
32°

Black Level Raise 
 

18°
19°

Gamma Shift 
 

18°
18°
Show text

Gray Uniformity 
 

7.1
7.6

50% Uniformity Picture  

TCL QM8/QM851G QLED 50% Uniformity Picture
TCL QM8/QM850G QLED 50% Uniformity Picture

50% Std. Dev. 
 

2.225%
1.574%

50% DSE 
 

0.170%
0.199%

5% Uniformity Picture  

TCL QM8/QM851G QLED 5% Uniformity Picture
TCL QM8/QM850G QLED 5% Uniformity Picture

5% Std. Dev. 
 

0.670%
0.335%

5% DSE 
 

0.093%
0.110%
Show text

Panel Technology 
 

Spectral Power Distribution  

TCL QM8/QM851G QLED Spectral Power Distribution

Pixels Picture  

TCL QM8/QM851G QLED Pixels Picture
TCL QM8/QM850G QLED Pixels Picture

Type  

LED
LED

Sub-Type 
 

VA
VA

Subpixel Layout 
 

BGR
BGR
Show text
Inputs

Input Lag 
 

8.4
9.4

1080p @ 60Hz 
 

14.1 ms
14.3 ms

1080p @ 60Hz Outside Game Mode 
 

125.0 ms
127.6 ms

1080p @ 120Hz 
 

6.1 ms
6.1 ms

1080p @ 144Hz 
 

8.0 ms
14.9 ms

1440p @ 60Hz 
 

17.6 ms

1440p @ 120Hz 
 

9.7 ms

1440p @ 144Hz 
 

16.3 ms

4k @ 60Hz 
 

14.1 ms
14.2 ms

4k @ 60Hz + 10-Bit HDR 
 

14.2 ms

4k @ 60Hz @ 4:4:4 
 

15.0 ms
26.4 ms

4k @ 60Hz Outside Game Mode 
 

124.7 ms
127.7 ms

4k @ 60Hz With Interpolation 
 

116.5 ms
121.2 ms

4k @ 120Hz 
 

5.9 ms
6.3 ms

4k @ 144Hz 
 

5.0 ms
15.7 ms

8k @ 60Hz 
 

N/A
N/A
Show text

Supported Resolutions 
 

9.7
9.3

Resolution  

4k
4k

480p @ 59.94Hz (Widescreen) 
 

Yes
Yes

720p @ 59.94Hz 
 

Yes
Yes

1080p @ 60Hz @ 4:4:4 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

1080p @ 144Hz 
 

Yes
Yes

1440p @ 60Hz 
 

Yes (forced resolution required)

1440p @ 120Hz 
 

Yes

1440p @ 144Hz 
 

Yes

4k @ 60Hz 
 

Yes
Yes

4k @ 60Hz @ 4:4:4 
 

Yes
Yes

4k @ 120Hz 
 

Yes
Yes

4k @ 120Hz @ 4:4:4 
 

Yes
No

4k @ 144Hz 
 

Yes
Yes

8k @ 30Hz or 24Hz 
 

No
No

8k @ 60Hz 
 

No
No
Show text

PS5 Compatibility 
 

PS5 Screenshot  

TCL QM8/QM851G QLED PS5 Screenshot
TCL QM8/QM850G QLED PS5 Screenshot

Auto Low Latency Mode (ALLM) 
 

Yes
Yes

4k @ 120Hz 
 

Yes
Yes

1440p @ 120Hz 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

HDR 
 

Yes
Yes

VRR 
 

Yes
Yes
Show text

Xbox Series X|S Compatibility 
 

Xbox Series X Screenshot  

TCL QM8/QM851G QLED Xbox Series X Screenshot
TCL QM8/QM850G QLED Xbox Series X Screenshot

Auto Low Latency Mode (ALLM) 
 

Yes
Yes

4k @ 120Hz 
 

Yes
Yes

1440p @ 120Hz 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

HDR 
 

Yes
Yes

VRR 
 

Yes
Yes
Show text

Input Specifications  

Side Inputs Picture  

TCL QM8/QM851G QLED Side Inputs Picture
TCL QM8/QM850G QLED Side Inputs Picture

Rear Inputs Picture  

TCL QM8/QM851G QLED Rear Inputs Picture
TCL QM8/QM850G QLED Rear Inputs Picture

HDR10 
 

Yes
Yes

HDMI  

4 (2x HDMI 2.0, 2x HDMI 2.1)
4

HDR10+ 
 

Yes
Yes

Dolby Vision 
 

Yes
Yes

HDMI 2.1 Rated Speed 
 

48 Gbps
Yes (HDMI 1,2)

HLG 
 

Yes
Yes

ATSC Tuner 
 

3.0 (NEXTGEN TV)
1.0

USB Ports  

3
1

HDMI 2.0 Full Bandwidth 
 

Yes (HDMI 1,2,3,4)

USB 3.0 
 

Yes (1)
No

Audio Out 3.5mm  

1
1

Wi-Fi  

Yes (2.4 GHz, 5 GHz, 6 GHz)
Yes (2.4 GHz, 5 GHz)

Ethernet Speed  

100 Mbps
1

CEC  

Yes

Composite In  

1 (Adapter Required, Not Incl.)
1 (adapter required, not incl.)

HDCP 2.2  

Yes (HDMI 1,2,3,4)

Digital Optical Audio Out  

1
1

Variable Analog Audio Out  

Yes
Show text

Input Photos  

Side Inputs Picture  

TCL QM8/QM851G QLED Side Inputs Picture
TCL QM8/QM850G QLED Side Inputs Picture

Rear Inputs Picture  

TCL QM8/QM851G QLED Rear Inputs Picture
TCL QM8/QM850G QLED Rear Inputs Picture

Audio Passthrough 
 

ARC/eARC Port 
 

eARC
eARC

eARC: Dolby Atmos Over Dolby Digital Plus 
 

Yes
Yes

eARC: Dolby Digital Plus 7.1 
 

Yes
Yes

eARC: LPCM 7.1 Over Dolby MAT 
 

Yes
Yes

eARC: Dolby TrueHD 7.1 
 

Yes
Yes

eARC: DTS:X Over DTS-HD MA 
 

Yes
Yes

eARC: DTS-HD Master Audio 7.1 
 

Yes
Yes

eARC: LPCM Channels (Bitstream) 
 

7.1
2.0

ARC: Dolby Digital 5.1 
 

Yes
Yes

ARC: DTS 5.1 
 

Yes
Yes

Optical: Dolby Digital 5.1 
 

Yes
Yes

Optical: DTS 5.1 
 

Yes
Yes
Show text

Total Inputs  

HDMI  

4 (2x HDMI 2.0, 2x HDMI 2.1)
4

USB  

3
1

Digital Optical Audio Out  

1
1

Analog Audio Out 3.5mm  

1
1

Analog Audio Out RCA  

0

Component In  

0

Composite In  

1 (Adapter Required, Not Incl.)
1 (adapter required, not incl.)

Tuner (Cable/Ant)  

1

Ethernet  

100 Mbps
1

DisplayPort  

0

IR In  

0

HDR Format Support  

HDR10 
 

Yes
Yes

HDR10+ 
 

Yes
Yes

Dolby Vision 
 

Yes
Yes

HLG 
 

Yes
Yes
Design

Style  

Design Picture  

TCL QM8/QM851G QLED Design Picture
TCL QM8/QM850G QLED Design Picture

Curved  

No
No
Show text

Accelerated Longevity Test 
 

Uniformity Pictures  

Longevity Graph  

TCL QM8/QM850G QLED Longevity Graph

Stand  

Stand Picture  

TCL QM8/QM851G QLED Stand Picture
TCL QM8/QM850G QLED Stand Picture
Show text

Back  

Back Picture  

TCL QM8/QM851G QLED Back Picture
TCL QM8/QM850G QLED Back Picture

Wall Mount  

VESA 400x400
VESA 300x400
Show text

Borders  

Borders Picture  

TCL QM8/QM851G QLED Borders Picture
TCL QM8/QM850G QLED Borders Picture

Borders  

0.31" (0.8 cm)
0.39" (1.0 cm)

Thickness  

Thickness Picture  

TCL QM8/QM851G QLED Thickness Picture
TCL QM8/QM850G QLED Thickness Picture

Max Thickness  

2.28" (5.8 cm)
1.93" (4.9 cm)

Build Quality 
 

8.5
8.5

Build quality picture  

TCL QM8/QM851G QLED Build quality picture
TCL QM8/QM850G QLED Build quality picture
Show text
Smart Features

Interface 
 

Smart TV Picture  

TCL QM8/QM851G QLED Smart TV Picture
TCL QM8/QM850G QLED Smart TV Picture

Smart OS  

Google TV
Google TV

Version  

12
11

Ease of Use 
 

Average

Smoothness 
 

Very Smooth

Time Taken to Select YouTube 
 

1 s

Time Taken to Change Backlight 
 

2 s

Advanced Options 
 

Many
Show text

Ad-Free 
 

0.0
0.0

Ads Picture  

TCL QM8/QM851G QLED Ads Picture
TCL QM8/QM850G QLED Ads Picture

Ads 
 

Yes
Yes

Opt-out 
 

No
No

Suggested Content in Home 
 

Yes
Yes

Opt-out of Suggested Content 
 

No
No
Show text

Apps and Features 
 

9.0

Apps Picture  

TCL QM8/QM850G QLED Apps Picture

App Selection 
 

Great

App Smoothness 
 

Very Smooth

Cast Capable 
 

Yes

USB Drive Playback 
 

Yes

USB Drive HDR Playback 
 

Yes

HDR in Netflix 
 

Yes

HDR in YouTube 
 

Yes
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Remote  

Remote Picture  

TCL QM8/QM851G QLED Remote Picture
TCL QM8/QM850G QLED Remote Picture

Size 
 

Medium

Voice Control  

Yes
Many Features

CEC Menu Control 
 

Yes

Other Smart Features 
 

No

Remote App  

Android TV
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TV Controls  

Controls Picture  

TCL QM8/QM851G QLED Controls Picture
TCL QM8/QM850G QLED Controls Picture

Mute Switch 
 

Yes
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In The Box  

In The Box Picture  

TCL QM8/QM851G QLED In The Box Picture
TCL QM8/QM850G QLED In The Box Picture
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Misc  

Power Consumption  

66 W
54 W

Power Consumption (Max)  

307 W
299 W

Firmware  

V8-T653T02-LF1V085
B8-T615T02-LF1V295.000844
Sound Quality

Frequency Response 
 

7.0
7.0

Frequency Response  

See details on graph tool
See details on graph tool

Low-Frequency Extension 
 

75.51 Hz
89.80 Hz

Std. Dev. @ 70 
 

3.92 dB
4.74 dB

Std. Dev. @ 80 
 

3.60 dB
4.67 dB

Std. Dev. @ Max 
 

4.90 dB
5.09 dB

Max 
 

87.3 dB SPL
92.1 dB SPL

Dynamic Range Compression 
 

4.74 dB
2.43 dB

Digital Room Correction  

Yes
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Distortion 
 

6.6

Total Harmonic Distortion 
 

See details on graph tool

Weighted THD @ 80 
 

0.128

Weighted THD @ Max 
 

0.793

IMD @ 80 
 

8.67%

IMD @ Max 
 

8.42%
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Check Price

TCL QM8/QM851G QLED

TCL QM8/QM850G QLED

Comments

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TCL QM8/QM850G QLED vs TCL QM8/QM851G QLED: Main Discussion

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