LG B5 OLED vs TCL QM7K

Which TV Is Better?

Products

LG B5 OLED
TCL QM7K

Tested using Methodology v2.0.1

Updated Nov 27, 2025 06:17 PM

SEE PRICE
BestBuy.com

Tested using Methodology v2.0.1

Updated Nov 20, 2025 01:54 PM

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BestBuy.com
  1. Recommended in 13 articles:
  2. Gaming
  3. OLED
  4. 55-Inch
  5. 10
  1. Recommended in 22 articles:
  2. Best TVs
  3. 65-Inch
  4. Gaming
  5. 19

Our Verdict

LG B5 OLED

TCL QM7K

The LG B5 is a much better TV than the TCL QM7K. The B5 delivers much better dark room performance, with perfect inky blacks that give the image more depth, and perfect uniformity with no distracting haloing around bright highlights or subtitles. The LG is also better for gaming thanks to its nearly instantaneous response time, so there's no motion blur around fast-moving objects. The TCL TV gets quite a bit brighter, though, so it's a slightly better choice if you're in a bright room.

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Variants

  • OLED48B5PUA (48")
  • OLED55B5PUA (55")
  • OLED65B5PUA (65")
  • OLED77B5PUA (77")
  • OLED83B5PUA (83")
  • 55QM7K (55")
  • 65QM7K (65")
  • 75QM7K (75")
  • 85QM7K (85")
  • 98QM7K (98")

Check Price

48"
OLED48B5PUA
SEE PRICE
BestBuy.com
48"
 
55"
OLED55B5PUA
SEE PRICE
Amazon.com
65"
OLED65B5PUA
SEE PRICE
LG.com
75"
 
77"
OLED77B5PUA
SEE PRICE
BestBuy.com
77"
 
83"
OLED83B5PUA
SEE PRICE
LG.com
83"
 
85"
 
98"
 

Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 

8.2
7.8

SDR Brightness 
 

6.0
8.6

Black Uniformity 
 

10
7.5

Lighting Zone Precision 
 

10
7.0

Full Comparison

Brightness

HDR Brightness 
 

7.4
7.4

HDR Hallway Photo  

HDR Cityscape Photo  

HDR Landscape Photo  

Hallway Lights (~1950 cd/m²) 
 

799 cd/m²
542 cd/m²

Yellow Skyscraper (~700 cd/m²) 
 

490 cd/m²
302 cd/m²

Landscape Pool (~300 cd/m²) 
 

258 cd/m²
286 cd/m²

Peak 2% Window 
 

852 cd/m²
1,312 cd/m²

Peak 10% Window 
 

847 cd/m²
1,731 cd/m²

Peak 25% Window 
 

565 cd/m²
1,408 cd/m²

Peak 50% Window 
 

368 cd/m²
854 cd/m²

Peak 100% Window 
 

165 cd/m²
518 cd/m²

Sustained 2% Window 
 

833 cd/m²
940 cd/m²

Sustained 10% Window 
 

792 cd/m²
1,637 cd/m²

Sustained 25% Window 
 

516 cd/m²
1,383 cd/m²

Sustained 50% Window 
 

368 cd/m²
852 cd/m²

Sustained 100% Window 
 

162 cd/m²
516 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.096
0.059
Show Text 

HDR Brightness In Game Mode 
 

6.8
7.7

HDR Hallway Photo  

HDR Cityscape Photo  

HDR Landscape Photo  

Hallway Lights (~1950 cd/m²) 
 

594 cd/m²
596 cd/m²

Yellow Skyscraper (~700 cd/m²) 
 

413 cd/m²
377 cd/m²

Landscape Pool (~300 cd/m²) 
 

260 cd/m²
361 cd/m²

Peak 2% Window 
 

712 cd/m²
1,320 cd/m²

Peak 10% Window 
 

714 cd/m²
1,783 cd/m²

Peak 25% Window 
 

528 cd/m²
1,457 cd/m²

Peak 50% Window 
 

342 cd/m²
887 cd/m²

Peak 100% Window 
 

151 cd/m²
541 cd/m²

Sustained 2% Window 
 

706 cd/m²
954 cd/m²

Sustained 10% Window 
 

699 cd/m²
1,677 cd/m²

Sustained 25% Window 
 

513 cd/m²
1,440 cd/m²

Sustained 50% Window 
 

342 cd/m²
885 cd/m²

Sustained 100% Window 
 

148 cd/m²
540 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.094
0.058
Show Text 

SDR Brightness 
 

6.0
8.6

Real Scene Peak Brightness 
 

303 cd/m²
600 cd/m²

Peak 2% Window 
 

426 cd/m²
1,233 cd/m²

Peak 10% Window 
 

439 cd/m²
1,568 cd/m²

Peak 25% Window 
 

437 cd/m²
1,266 cd/m²

Peak 50% Window 
 

391 cd/m²
894 cd/m²

Peak 100% Window 
 

184 cd/m²
537 cd/m²

Sustained 2% Window 
 

421 cd/m²
872 cd/m²

Sustained 10% Window 
 

435 cd/m²
1,513 cd/m²

Sustained 25% Window 
 

431 cd/m²
1,253 cd/m²

Sustained 50% Window 
 

389 cd/m²
891 cd/m²

Sustained 100% Window 
 

181 cd/m²
537 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.056
0.052
Show Text 
Black Level

Contrast 
 

10
9.4

Contrast Picture  

Contrast 
 

Inf : 1
265,133 : 1

Native Contrast 
 

Inf : 1
8,392 : 1
Show Text 

Lighting Zone Precision 
 

10
7.0

Lighting Zone Precision Picture  

Show Text 

Lighting Zone Transitions 
 

10
7.0

Preferred LD Video, Moving Object  

Local Dimming 
 

No
Yes

Backlight 
 

No Backlight
Full-Array

Dimming Zone Count Of The Tested TV 
 

8,294,400
966
Show Text 

Contrast And Dark Details In Game Mode 
 

9.5
7.5

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 
 

10
7.5

Black Uniformity Picture With Preferred Local Dimming  

Std. Dev. 
 

N/A
1.253%

Native Black Uniformity Picture  

Native Std. Dev. 
 

0.165%
0.424%
Show Text 
Color

SDR Color Volume 
 

8.7
7.5

DCI-P3 Gamut Rings  

CIELAB DCI-P3 Coverage 
 

98.30%
89.42%

BT.2020 Gamut Rings  

CIELAB BT.2020 Coverage 
 

71.16%
66.06%
Show Text 

HDR Color Volume 
 

7.5
8.0

P3 Color Volume ITP Picture  

1,000 cd/m² DCI P3 Coverage ITP 
 

70.3%
84.4%

2020 Color Volume ITP Picture  

10,000 cd/m² BT.2020 Coverage ITP 
 

34.6%
40.0%

White Luminance 
 

699 cd/m²
975 cd/m²

Red Luminance 
 

92 cd/m²
221 cd/m²

Green Luminance 
 

305 cd/m²
678 cd/m²

Blue Luminance 
 

37 cd/m²
63 cd/m²

Cyan Luminance 
 

331 cd/m²
741 cd/m²

Magenta Luminance 
 

109 cd/m²
207 cd/m²

Yellow Luminance 
 

384 cd/m²
840 cd/m²
Show Text 

SDR Pre-Calibration Color Accuracy 
 

8.8
8.2

Pre White Balance Picture  

Pre Gamma Curve Picture  

Pre Color Picture  

White Balance dE 2000 
 

1.99
2.44

Color dE 2000 
 

1.44
2.14

Gamma 
 

2.22
2.02

Color Temperature 
 

6,581 K
6,674 K

Picture Mode 
 

Expert (Dark Space, night)
Movie

Color Temp Setting 
 

Warm 40
warm 5

Gamma Setting 
 

2.2
2.2
Show Text 

SDR Post-Calibration Color Accuracy 
 

9.6
9.6

Post White Balance Picture  

Post Gamma Curve Picture  

Post Color Picture  

White Balance dE 2000 
 

0.28
0.34

Color dE 2000 
 

0.95
0.90

Gamma 
 

2.22
2.16

Color Temperature 
 

6,501 K
6,502 K

White Balance Calibration 
 

22 point
20 point

Color Calibration 
 

Yes
Yes
Show Text 

HDR Pre-Calibration Color Accuracy 
 

9.3
5.6

HDR Pre White Balance Picture  

HDR Pre Color Picture  

White Balance dE ITP 
 

2.77
14.87

Color dE ITP 
 

5.4
18.2

Color Temperature 
 

6,562 K
7,503 K

Picture Mode 
 

FILMMAKER MODE
Movie
Show Text 

HDR Post-Calibration Color Accuracy 
 

9.5
7.9

HDR Post White Balance Picture  

HDR Post Color Picture  

White Balance dE ITP 
 

2.43
9.80

Color dE ITP 
 

4.70
9.20

Color Temperature 
 

6,528 K
6,525 K
Show Text 
Processing

PQ EOTF Tracking 
 

9.5
8.3

PQ EOTF Graph  

See details
See details

600 Nit Tracking Delta 
 

0.0014
0.0045

1000 Nit Tracking Delta 
 

0.0015
0.0045

4000 Nit Tracking Delta 
 

0.0014
0.0045
Show Text 

Low-Quality Content Smoothing 
 

7.9
8.1

Low-Quality Content Smoothing Picture  

Smoothing 
 

8.0
8.5

Detail Preservation 
 

7.5
7.0
Show Text 

Upscaling: Sharpness Processing 
 

8.0
7.0

Sharpness Picture - 480p  

Show Text 

HDR Native Gradient 
 

8.0
7.3

HDR Gradient Picture  

100% Black To 50% Gray  

6.0
6.0

50% Gray To 100% White  

8.0
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
8.0

50% Green To 100% Green  

6.0
6.0

100% Black To 50% Blue  

8.0
8.0

50% Blue To 100% Blue  

10
8.0
Show Text 
Game Mode Responsiveness

Input Lag 
 

8.9
8.8

1080p @ 60Hz 
 

9.9 ms
10.1 ms

1080p @ 60Hz Outside Game Mode 
 

155.9 ms
109.1 ms

1080p @ 120Hz 
 

5.4 ms
5.8 ms

1080p @ Max Refresh Rate 
 

5.4 ms
3.5 ms

4k @ 60Hz 
 

10.1 ms
10.1 ms

4k @ 60Hz @ 4:4:4 
 

10.1 ms
14.0 ms

4k @ 60Hz Outside Game Mode 
 

141.5 ms
108.4 ms

4k @ 60Hz With Interpolation 
 

130.8 ms
113.5 ms

4k @ 120Hz 
 

5.4 ms
5.8 ms

4k @ Max Refresh Rate 
 

5.4 ms
5.3 ms

8k @ 60Hz 
 

N/A
N/A
Show Text 

Supported Resolutions 
 

9.1
9.5

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 Maximum Refresh Rate 
 

120 Hz
288 Hz

4k @ 60Hz 
 

Yes
Yes

4k @ 60Hz @ 4:4:4 
 

Yes
Yes

4k @ 120Hz 
 

Yes
Yes

4k @ 120Hz @ 4:4:4 
 

Yes
Yes

4k Maximum Refresh Rate 
 

120 Hz
144 Hz

8k @ 30Hz Or 24Hz 
 

No
No

8k @ 60Hz 
 

No
No
Show Text 

Variable Refresh Rate 
 

7.5
8.8

Native Refresh Rate 
 

120Hz
144Hz

Variable Refresh Rate 
 

Yes
Yes

HDMI Forum VRR 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC Compatible 
 

Yes (NVIDIA Certified)
Yes

4k VRR Maximum 
 

120 Hz
144 Hz

4k VRR Minimum 
 

< 20 Hz
< 20 Hz

1080p VRR Maximum 
 

120 Hz
288 Hz

1080p VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR + Local Dimming  

No Local Dimming
Yes
Show Text 

CAD In Game Mode @ Max Refresh Rate 
 

9.6
7.4

Pursuit Photo Max Refresh  

CAD Heatmap Max Refresh 
 

Transition At Max Refresh 
 

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

Avg. CAD 
 

38
183

Best 10% CAD 
 

15
82

Worst 10% CAD 
 

104
298
Show Text 

CAD In Game Mode @ 120Hz 
 

9.6
6.9

Pursuit Photo 120Hz  

CAD Heatmap 120Hz  

Transition At 120Hz 
 

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

Avg. CAD 
 

38
204

Best 10% CAD 
 

15
83

Worst 10% CAD 
 

104
431
Show Text 

CAD In Game Mode @ 60Hz 
 

9.4
6.8

Pursuit Photo 60Hz  

CAD Heatmap 60Hz 
 

Transition 60Hz 
 

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

Avg. CAD 
 

50
234

Best 10% CAD 
 

15
81

Worst 10% CAD 
 

146
392
Show Text 

PS5 Compatibility 
 

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  

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 
 

4.2
7.3

Frame Hold Time @ 24 fps 
 

41.2 ms
31.4 ms

Frame Hold Time @ 60 fps 
 

16.2 ms
6.4 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 
 

9.6
8.0

Pursuit Photo 60Hz  

Response Time Heatmap 60Hz 
 

Transition At 60Hz 
 

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

First Response Time 
 

0.5 ms
6.2 ms

Total Response Time 
 

4.2 ms
10.3 ms

Worst 10% Response Time 
 

10.3 ms
25.3 ms
Show Text 

Flicker 
 

Backlight chart 
 

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

0 Hz
10,400 Hz
Show Text 

Black Frame Insertion (BFI) 
 

BFI Picture  

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 
 

No
Yes

Min Flicker For 60 fps In Game Mode 
 

60 Hz
60 Hz
Show Text 

Motion Interpolation 
 

Motion Interpolation (30 fps) Picture  

Motion Interpolation (30 fps) 
 

Yes
Yes

Motion Interpolation (60 fps) Picture  

Motion Interpolation (60 fps) 
 

Yes
Yes
Show Text 
Reflections

Direct Reflections 
 

6.7
6.5

Ring Light Picture  

Direct Reflections Graph  

See details
See details

Peak Direct Reflection Intensity 
 

38.0%
41.5%

Screen Finish 
 

Glossy
Glossy
Show Text 

Ambient Black Level Raise 
 

9.2
9.0

Black Level Raise Picture  

Bright Room Black Level Raise Graph  

See details
See details

Black Luminance @ 0 lx 
 

0.00 cd/m²
0.00 cd/m²

Black Luminance @ 1000 lx 
 

0.28 cd/m²
0.43 cd/m²
Show Text 

Total Reflected Light 
 

7.8
8.1

Bright Room Off Picture  

Ring Picture Total Reflection  

Total Reflected Light Intensity 
 

12,897% ⋅ pixel
10,301% ⋅ pixel

Diffraction Artifacts 
 

Yes
Yes
Show Text 

Ambient Color Saturation 
 

7.6
7.4

Bright Room Color Volume Graph  

See details
See details

Low-Luminance Colors @ 1000 lx 
 

66.94%
61.63%

Mid-Luminance Colors @ 1000 lx 
 

61.36%
65.60%

High-Luminance Colors @ 1000 lx 
 

44.00%
59.72%
Show Text 
Panel

Viewing Angle 
 

8.7
6.6

Viewing Angle Video  

Chroma Graph  

Color Washout 
 

47°
25°

Hue Graph  

Color Shift 
 

30°
58°

Lightness Graph  

Brightness Loss 
 

61°
30°

Black Level Raise 
 

69°
17°

Gamma Shift 
 

65°
20°
Show Text 

Gray Uniformity 
 

7.8
6.9

50% Uniformity Picture  

50% Std. Dev. 
 

1.264%
2.165%

50% DSE 
 

0.143%
0.195%

5% Uniformity Picture  

5% Std. Dev. 
 

0.488%
0.468%

5% DSE 
 

0.105%
0.092%
Show Text 

Panel Technology 
 

Spectral Power Distribution  

Pixels Picture  

Type  

OLED
LED

Sub-Type 
 

WOLED
VA

Subpixel Layout 
 

RWBG
BGR
Show Text 
Inputs

Input Specifications  

Side Inputs Picture  

Rear Inputs Picture  

HDMI  

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

HDMI 2.1 Rated Speed 
 

48 Gbps
48 Gbps

ATSC Tuner 
 

1.0
1.0

USB Ports  

2
2

USB 3.0 
 

No
Yes (1)

Audio Out 3.5mm  

0
0

Wi-Fi  

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

Ethernet Speed  

100 Mbps
100 Mbps

Composite In  

0
0

Digital Optical Audio Out  

1
1
Show Text 

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 
 

No
Yes

eARC: DTS-HD Master Audio 7.1 
 

No
Yes

eARC: LPCM Channels (Bitstream) 
 

7.1
7.1

ARC: Dolby Digital 5.1 
 

Yes
Yes

ARC: DTS 5.1 
 

No
Yes

Optical: Dolby Digital 5.1 
 

Yes
Yes

Optical: DTS 5.1 
 

No
Yes
Show Text 

HDR Format Support  

HDR10 
 

Yes
Yes

HDR10+ 
 

No
Yes

Dolby Vision 
 

Yes
Yes

HLG 
 

Yes
Yes
Design

Style  

Design Picture  

Curved  

No
No
Show Text 

Stand  

Stand Picture  

Show Text 

Back  

Back Picture  

Wall Mount  

VESA 300x200
VESA 300x300
Show Text 

Borders  

Borders Picture  

Borders  

0.43" (1.1 cm)
0.39" (1.0 cm)

Thickness  

Thickness Picture  

Max Thickness  

2.01" (5.1 cm)
2.20" (5.6 cm)

Build Quality 
 

8.5
7.0

Build quality picture  

Show Text 
Smart Features

Interface 
 

Smart TV Picture  

Smart OS  

webOS
Google TV

Version  

25
12
Show Text 

Ad-Free 
 

0.0
0.0

Ads Picture  

Ads 
 

Yes
Yes

Opt-out 
 

No
No

Suggested Content in Home 
 

No
Yes

Opt-out of Suggested Content 
 

No
No
Show Text 

Remote  

Remote Picture  

Voice Control  

Yes
Yes
Show Text 

TV Controls  

Controls Picture  

Mute Switch 
 

No
Yes
Show Text 

In The Box  

In The Box Picture  

Show Text 

Misc  

Power Consumption  

97 W
61 W

Power Consumption (Max)  

230 W
218 W

Firmware  

33.20.71
V8-0012T02-LF1V201
Show Text 
Sound Quality

Frequency Response 
 

6.4
5.6

Frequency Response  

See details
See details

Low-Frequency Extension 
 

95.14 Hz
134.54 Hz

Std. Dev. @ 70 
 

3.85 dB
2.63 dB

Std. Dev. @ 80 
 

3.87 dB
2.84 dB

Std. Dev. @ Max 
 

5.59 dB
4.26 dB

Max 
 

85.1 dB SPL
82.0 dB SPL

Dynamic Range Compression 
 

3.68 dB
4.46 dB

Digital Room Correction  

Yes
No
Show Text 

Check Price

48"
OLED48B5PUA
SEE PRICE
BestBuy.com
48"
 
55"
OLED55B5PUA
SEE PRICE
Amazon.com
65"
OLED65B5PUA
SEE PRICE
LG.com
75"
 
77"
OLED77B5PUA
SEE PRICE
BestBuy.com
77"
 
83"
OLED83B5PUA
SEE PRICE
LG.com
83"
 
85"
 
98"
 

LG B5 OLED

TCL QM7K

Comments

  1. Comparison

LG B5 OLED vs TCL QM7K: Main Discussion

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