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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
LG C3 OLED vs TCL QM8/QM851G QLED
Side-by-Side Comparison
Products
LG C3 OLED
TCL QM8/QM851G QLED
Tested using Methodology v1.11
Updated Nov 07, 2024 08:53 PM
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Amazon.comTested using Methodology v1.11
Updated Jan 23, 2025 05:12 PM
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Amazon.com
Resolution4k
TypeOLED
Sub-TypeWOLED
Resolution4k
TypeLED
Sub-TypeVA
Variants
- OLED42C3PUA (42")
- OLED48C3PUA (48")
- OLED55C3PUA (55")
- OLED65C3PUA (65")
- OLED77C3PUA (77")
- OLED83C3PUA (83")
- 65QM851G (65")
- 75QM851G (75")
- 85QM851G (85")
- 98QM851G (98")
Our Verdict
LG C3 OLED
TCL QM8/QM851G QLED
The LG C3 OLED is better than the TCL QM8/QM851G QLED, but they excel in different room conditions. Being an OLED, the LG is fantastic in dark rooms due to its near-infinite contrast, with no blooming or lighting zone transitions. The TCL, however, is far brighter in HDR and SDR, making it the better choice in brighter rooms. Still, the LG is more accurate in HDR and SDR, has better image processing, and is the better gaming TV due to its near instantaneous response time, so it doesn't really have any weaknesses outside of its lower brightness.
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42"
OLED42C3PUA
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OLED48C3PUA
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OLED55C3PUA
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OLED65C3PUA
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65QM851G
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75QM851G
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OLED77C3PUA
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OLED83C3PUA
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85QM851G
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98QM851G
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Finding storeMain Differences for
Threshold
Mixed Usage
9.0
8.5
Viewing Angle
9.3
5.4
Full Comparison
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 300x200
VESA 400x400
Borders
Borders Picture
Borders
0.22" (0.6 cm)
0.31" (0.8 cm)
Thickness
Thickness Picture
Max Thickness
1.77" (4.5 cm)
2.28" (5.8 cm)
Build Quality
9.0
8.5
Build quality picture
Picture Quality
Contrast
10
9.4
Contrast Picture
Contrast
Inf : 1
161,440 : 1
Native Contrast
Inf : 1
7,638 : 1
Blooming
10
8.5
Blooming Photo
Lighting Zone Transitions
10
8.5
Preferred LD Video, Moving Object
Local Dimming
No
Yes
Backlight
No Backlight
Full-Array
Dimming Zones Count Of Tested TV
8,294,400
2,880
Contrast And Dark Details In Game Mode
9.5
9.0
Blooming Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
HDR Brightness
8.1
9.7
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
729 cd/m²
1,472 cd/m²
Yellow Skyscraper (~700 cd/m²)
581 cd/m²
611 cd/m²
Landscape Pool (~300 cd/m²)
326 cd/m²
473 cd/m²
Peak 2% Window
801 cd/m²
2,564 cd/m²
Peak 10% Window
815 cd/m²
3,467 cd/m²
Peak 25% Window
522 cd/m²
3,338 cd/m²
Peak 50% Window
311 cd/m²
1,814 cd/m²
Peak 100% Window
153 cd/m²
967 cd/m²
Sustained 2% Window
784 cd/m²
2,497 cd/m²
Sustained 10% Window
781 cd/m²
3,319 cd/m²
Sustained 25% Window
477 cd/m²
3,253 cd/m²
Sustained 50% Window
311 cd/m²
1,810 cd/m²
Sustained 100% Window
150 cd/m²
965 cd/m²
Automatic Brightness Limiting (ABL)
0.101
0.060
HDR Brightness In Game Mode
7.4
9.7
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
776 cd/m²
1,393 cd/m²
Yellow Skyscraper (~700 cd/m²)
434 cd/m²
625 cd/m²
Landscape Pool (~300 cd/m²)
175 cd/m²
447 cd/m²
Peak 2% Window
806 cd/m²
4,167 cd/m²
Peak 10% Window
808 cd/m²
3,425 cd/m²
Peak 25% Window
394 cd/m²
3,366 cd/m²
Peak 50% Window
269 cd/m²
1,796 cd/m²
Peak 100% Window
184 cd/m²
956 cd/m²
Sustained 2% Window
786 cd/m²
2,384 cd/m²
Sustained 10% Window
780 cd/m²
3,300 cd/m²
Sustained 25% Window
367 cd/m²
3,251 cd/m²
Sustained 50% Window
268 cd/m²
1,792 cd/m²
Sustained 100% Window
147 cd/m²
953 cd/m²
Automatic Brightness Limiting (ABL)
0.105
0.060
PQ EOTF Tracking
9.2
6.8
PQ EOTF Graph
600 Nit Tracking Delta
0.0056
0.0313
1000 Nit Tracking Delta
0.0054
0.0314
4000 Nit Tracking Delta
0.0051
0.0314
SDR Brightness
7.9
9.4
Real Scene Peak Brightness
474 cd/m²
1,108 cd/m²
Peak 2% Window
409 cd/m²
4,043 cd/m²
Peak 10% Window
412 cd/m²
3,355 cd/m²
Peak 25% Window
396 cd/m²
3,291 cd/m²
Peak 50% Window
379 cd/m²
1,767 cd/m²
Peak 100% Window
216 cd/m²
940 cd/m²
Sustained 2% Window
405 cd/m²
2,320 cd/m²
Sustained 10% Window
407 cd/m²
3,238 cd/m²
Sustained 25% Window
390 cd/m²
3,171 cd/m²
Sustained 50% Window
375 cd/m²
1,761 cd/m²
Sustained 100% Window
214 cd/m²
938 cd/m²
Automatic Brightness Limiting (ABL)
0.041
0.060
Color Gamut
8.7
8.7
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
98.72%
94.71%
DCI P3 uv
99.51%
97.13%
Color Gamut Rec.2020 Picture
Rec 2020 xy
72.79%
74.53%
Rec 2020 uv
76.01%
80.64%
Color Volume
7.9
9.2
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
73.8%
85.2%
2020 Color Volume ITP Picture
10,000 cd/m² Rec 2020 Coverage ITP
34.1%
54.8%
White Luminance
856 cd/m²
2,513 cd/m²
Red Luminance
92 cd/m²
585 cd/m²
Green Luminance
298 cd/m²
1,885 cd/m²
Blue Luminance
34 cd/m²
189 cd/m²
Cyan Luminance
325 cd/m²
2,075 cd/m²
Magenta Luminance
118 cd/m²
773 cd/m²
Yellow Luminance
363 cd/m²
2,451 cd/m²
Pre Calibration
8.9
7.8
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
1.50
3.36
Color dE
1.30
2.07
Gamma
2.24
2.09
Color Temperature
6,305 K
6,127 K
Picture Mode
Expert (Dark Space)
Movie
Color Temp Setting
Warm 50
Warm -5
Gamma Setting
2.2
2.2
Post Calibration
9.6
9.6
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.18
0.24
Color dE
0.87
0.82
Gamma
2.20
2.20
Color Temperature
6,495 K
6,483 K
White Balance Calibration
22 point
20 point
Color Calibration
Yes
Yes
Gray Uniformity
8.5
7.9
50% Uniformity Picture
50% Std. Dev.
1.288%
2.225%
50% DSE
0.134%
0.170%
5% Uniformity Picture
5% Std. Dev.
0.350%
0.670%
5% DSE
0.100%
0.093%
Black Uniformity
10
9.8
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
N/A
0.154%
Native Black Uniformity Picture
Native Std. Dev.
0.093%
0.569%
Viewing Angle
9.3
5.4
Viewing Angle Video
Chroma Graph
Color Washout
63°
23°
Hue Graph
Color Shift
34°
31°
Lightness Graph
Brightness Loss
70°
30°
Black Level Raise
70°
18°
Gamma Shift
70°
18°
Reflections
9.5
9.0
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Glossy
Total Reflections
1.1%
1.9%
Indirect Reflections
0.2%
0.4%
Calculated Direct Reflections
0.9%
1.5%
HDR Native Gradient
7.8
7.8
HDR Gradient Picture
100% Black to 50% Gray
6.0
6.0
50% Gray to 100% White
8.0
6.0
100% Black to 50% Red
8.0
8.0
50% Red to 100% Red
10
10
100% Black to 50% Green
8.0
8.0
50% Green to 100% Green
6.0
8.0
100% Black to 50% Blue
8.0
8.0
50% Blue to 100% Blue
8.0
8.0
Low-Quality Content Smoothing
8.6
8.1
Low-Quality Content Smoothing Picture
Smoothing
9.0
8.5
Detail Preservation
7.5
7.0
Upscaling: Sharpness Processing
8.0
7.5
Sharpness Picture - 480p
Pixels
Pixels Picture
Subpixel Layout
RWBG
BGR
Type
OLED
LED
Sub-Type
WOLED
VA
Motion
Response Time
9.9
8.6
Motion Blur Picture
Response Time Chart
80% Response Time
0.2 ms
3.3 ms
100% Response Time
2.3 ms
9.7 ms
Flicker-Free
10
9.0
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
30,000 Hz
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
Motion Interpolation
Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
Yes
Yes
Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
Yes
Yes
Stutter
5.0
6.7
Frame Hold Time @ 24 fps
39.4 ms
32.0 ms
Frame Hold Time @ 60 fps
14.4 ms
7.0 ms
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
Variable Refresh Rate
9.4
9.6
Native Refresh Rate
120 Hz
144 Hz
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
240 Hz
1080p VRR Minimum
< 20 Hz
< 20 Hz
1440p VRR Maximum
120 Hz
144 Hz
1440p VRR Minimum
< 20 Hz
< 20 Hz
VRR + Local Dimming
No Local Dimming
Yes
Inputs
Input Lag
9.7
9.5
1080p @ 60Hz
10.4 ms
14.1 ms
1080p @ 60Hz Outside Game Mode
89.7 ms
125.0 ms
1080p @ 120Hz
5.7 ms
6.1 ms
1080p @ 144Hz
N/A
4.9 ms
1440p @ 60Hz
10.5 ms
14.0 ms
1440p @ 120Hz
5.4 ms
6.0 ms
1440p @ 144Hz
N/A
5.1 ms
4k @ 60Hz
10.3 ms
14.1 ms
4k @ 60Hz + 10-Bit HDR
10.5 ms
14.1 ms
4k @ 60Hz @ 4:4:4
10.2 ms
15.0 ms
4k @ 60Hz Outside Game Mode
89.6 ms
124.7 ms
4k @ 60Hz With Interpolation
77.5 ms
116.5 ms
4k @ 120Hz
5.5 ms
5.9 ms
4k @ 144Hz
N/A
5.0 ms
8k @ 60Hz
N/A
N/A
Supported Resolutions
9.6
9.6
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
No
Yes
1440p @ 60Hz
Yes (forced resolution required)
Yes (forced resolution required)
1440p @ 120Hz
Yes
Yes
1440p @ 144Hz
No
Yes (forced resolution required)
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes
Yes
4k @ 120Hz @ 4:4:4
Yes
Yes
4k @ 144Hz
No
Yes
8k @ 30Hz or 24Hz
No
No
8k @ 60Hz
No
No
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
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
Inputs Specifications
HDR10
Yes
Yes
HDR10+
No
Yes
Dolby Vision
Yes
Yes
HLG
Yes
Yes
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
HDMI 2.1 Class Bandwidth
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
ATSC Tuner
1.0
3.0 (NEXTGEN TV)
USB 3.0
No
Yes (1)
Variable Analog Audio Out
No
Yes
Wi-Fi Support
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz, 6 GHz)
Input Photos
Side Inputs Picture
Rear Inputs Picture
Total Inputs
HDMI
4
4
USB
3
3
Digital Optical Audio Out
1
1
Analog Audio Out 3.5mm
0
1
Analog Audio Out RCA
0
0
Component In
0
0
Composite In
0
1 (adapter required, not incl.)
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
0
0
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
7.1
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
Sound Quality
Frequency Response
6.9
7.0
Frequency Response
Low-Frequency Extension
80.00 Hz
75.51 Hz
Std. Dev. @ 70
1.14 dB
3.92 dB
Std. Dev. @ 80
1.98 dB
3.60 dB
Std. Dev. @ Max
5.55 dB
4.90 dB
Max
85.9 dB SPL
87.3 dB SPL
Dynamic Range Compression
5.31 dB
4.74 dB
Distortion
6.9
6.5
Total Harmonic Distortion
Weighted THD @ 80
0.085
0.492
Weighted THD @ Max
0.545
27.890
IMD @ 80
4.49%
0.95%
IMD @ Max
8.04%
2.69%
Smart Features
Interface
8.5
8.0
Smart TV Picture
Smart OS
webOS
Google TV
Version
23
12
Ease of Use
Easy
Average
Smoothness
Average
Very Smooth
Time Taken to Select YouTube
2 s
1 s
Time Taken to Change Backlight
3 s
2 s
Advanced Options
Many
Many
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
Apps and Features
8.0
9.0
Apps Picture
App Selection
Great
Great
App Smoothness
Average
Very Smooth
Cast Capable
Yes
Yes
USB Drive Playback
Yes
Yes
USB Drive HDR Playback
Yes
Yes
HDR in Netflix
Yes
Yes
HDR in YouTube
Yes
Yes
Remote
9.0
8.5
Remote Picture
Size
Large
Medium
Voice Control
Many Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
Yes
No
Remote App
LG ThinQ
Android TV
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
95 W
66 W
Power Consumption (Max)
239 W
307 W
Firmware
03.10.85
V8-T653T02-LF1V085
Check Price
42"
OLED42C3PUA
Searching
Finding store48"
OLED48C3PUA
Searching
Finding store55"
OLED55C3PUA
Searching
Finding store65"
OLED65C3PUA
Searching
Finding store65"
65QM851G
Searching
Finding store75"
75QM851G
Searching
Finding store77"
OLED77C3PUA
Searching
Finding store83"
OLED83C3PUA
Searching
Finding store85"
85QM851G
Searching
Finding store98"
98QM851G
Searching
Finding store
LG C3 OLED
TCL QM8/QM851G QLED
Comments
LG C3 OLED vs TCL QM8/QM851G QLED: Main Discussion
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