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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
LG C4 OLED vs Samsung QN90D/QN90DD QLED
Side-by-Side Comparison
Products
LG C4 OLED
Samsung QN90D/QN90DD QLED
Tested using Methodology v1.11
Updated Mar 10, 2025 01:45 PM
SEE PRICE
Amazon.comTested using Methodology v1.11
Updated Jan 20, 2025 06:07 PM
SEE PRICE
Amazon.com
Resolution4k
TypeOLED
Sub-TypeWOLED
Resolution4k
TypeLED
Sub-TypeVA
Variants
- OLED42C4PUA (42")
- OLED48C4PUA (48")
- OLED55C4PUA (55")
- OLED65C4PUA (65")
- OLED77C4PUA (77")
- OLED83C4PUA (83")
- QN43QN90DAFXZA (43")
- QN50QN90DAFXZA (50")
- QN55QN90DAFXZA (55")
- QN65QN90DAFXZA (65")
- QN75QN90DAFXZA (75")
- QN85QN90DAFXZA (85")
- QN98QN90DAFXZA (98")
Our Verdict
LG C4 OLED
Samsung QN90D/QN90DD QLED
The LG C4 OLED is better than the Samsung QN90D/QN90DD QLED. The LG displays deeper blacks thanks to its nearly infinite contrast ratio, so it looks better in a dark room and has a much wider viewing angle, making it much more suitable for watching TV with a group. The LG also has a nearly instantaneous response time, so there is even less blur behind quick motion. On top of that, the LG is more accurate in both SDR and HDR. However, the QN90D is much brighter overall, so it overcomes more glare in very bright rooms.
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42"
OLED42C4PUA
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QN43QN90DAFXZA
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OLED48C4PUA
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QN50QN90DAFXZA
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OLED55C4PUA
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QN55QN90DAFXZA
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OLED65C4PUA
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QN65QN90DAFXZA
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QN75QN90DAFXZA
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OLED77C4PUA
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OLED83C4PUA
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QN85QN90DAFXZA
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QN98QN90DAFXZA
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Finding storeMain Differences for
Threshold
Mixed Usage
9.0
8.4
Pre Calibration
9.0
6.7
Contrast
10
9.0
Low-Quality Content Smoothing
8.6
6.8
Viewing Angle
8.9
6.7
SDR Brightness
7.8
9.4
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 400x300
Borders
Borders Picture
Borders
0.24" (0.6 cm)
0.31" (0.8 cm)
Thickness
Thickness Picture
Max Thickness
1.77" (4.5 cm)
1.02" (2.6 cm)
Build Quality
9.0
8.0
Build quality picture
Picture Quality
Contrast
10
9.0
Contrast Picture
Contrast
Inf : 1
167,120 : 1
Native Contrast
Inf : 1
3,404 : 1
Blooming
10
8.0
Blooming Photo
Lighting Zone Transitions
10
7.0
Preferred LD Video, Moving Object
Local Dimming
No
Yes
Backlight
No Backlight
Full-Array
Dimming Zones Count Of Tested TV
8,294,400
720
Contrast And Dark Details In Game Mode
9.5
8.5
Blooming Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
HDR Brightness
8.3
9.3
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
804 cd/m²
1,063 cd/m²
Yellow Skyscraper (~700 cd/m²)
590 cd/m²
669 cd/m²
Landscape Pool (~300 cd/m²)
265 cd/m²
265 cd/m²
Peak 2% Window
950 cd/m²
2,158 cd/m²
Peak 10% Window
932 cd/m²
2,087 cd/m²
Peak 25% Window
614 cd/m²
1,510 cd/m²
Peak 50% Window
331 cd/m²
894 cd/m²
Peak 100% Window
194 cd/m²
619 cd/m²
Sustained 2% Window
917 cd/m²
2,121 cd/m²
Sustained 10% Window
905 cd/m²
2,046 cd/m²
Sustained 25% Window
582 cd/m²
1,499 cd/m²
Sustained 50% Window
328 cd/m²
892 cd/m²
Sustained 100% Window
192 cd/m²
619 cd/m²
Automatic Brightness Limiting (ABL)
0.096
0.067
HDR Brightness In Game Mode
7.5
8.2
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
798 cd/m²
557 cd/m²
Yellow Skyscraper (~700 cd/m²)
415 cd/m²
588 cd/m²
Landscape Pool (~300 cd/m²)
165 cd/m²
125 cd/m²
Peak 2% Window
920 cd/m²
1,914 cd/m²
Peak 10% Window
923 cd/m²
2,109 cd/m²
Peak 25% Window
491 cd/m²
1,554 cd/m²
Peak 50% Window
296 cd/m²
937 cd/m²
Peak 100% Window
196 cd/m²
639 cd/m²
Sustained 2% Window
891 cd/m²
1,907 cd/m²
Sustained 10% Window
894 cd/m²
2,015 cd/m²
Sustained 25% Window
472 cd/m²
1,541 cd/m²
Sustained 50% Window
294 cd/m²
881 cd/m²
Sustained 100% Window
195 cd/m²
638 cd/m²
Automatic Brightness Limiting (ABL)
0.097
0.063
PQ EOTF Tracking
9.5
9.0
PQ EOTF Graph
600 Nit Tracking Delta
0.0033
0.0067
1000 Nit Tracking Delta
0.0033
0.0067
4000 Nit Tracking Delta
0.0039
0.0056
SDR Brightness
7.8
9.4
Real Scene Peak Brightness
411 cd/m²
1,315 cd/m²
Peak 2% Window
427 cd/m²
1,930 cd/m²
Peak 10% Window
425 cd/m²
2,032 cd/m²
Peak 25% Window
405 cd/m²
1,530 cd/m²
Peak 50% Window
382 cd/m²
1,009 cd/m²
Peak 100% Window
259 cd/m²
629 cd/m²
Sustained 2% Window
420 cd/m²
1,924 cd/m²
Sustained 10% Window
420 cd/m²
1,988 cd/m²
Sustained 25% Window
401 cd/m²
1,514 cd/m²
Sustained 50% Window
379 cd/m²
944 cd/m²
Sustained 100% Window
258 cd/m²
628 cd/m²
Automatic Brightness Limiting (ABL)
0.030
0.062
Color Gamut
8.6
8.3
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
98.07%
93.03%
DCI P3 uv
99.32%
94.25%
Color Gamut Rec.2020 Picture
Rec 2020 xy
72.47%
68.59%
Rec 2020 uv
75.94%
73.66%
Color Volume
8.1
9.0
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
79.2%
88.4%
2020 Color Volume ITP Picture
10,000 cd/m² Rec 2020 Coverage ITP
36.2%
49.4%
White Luminance
1,008 cd/m²
2,153 cd/m²
Red Luminance
104 cd/m²
425 cd/m²
Green Luminance
333 cd/m²
1,511 cd/m²
Blue Luminance
38 cd/m²
142 cd/m²
Cyan Luminance
365 cd/m²
1,667 cd/m²
Magenta Luminance
134 cd/m²
577 cd/m²
Yellow Luminance
425 cd/m²
1,939 cd/m²
Pre Calibration
9.0
6.7
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
1.61
3.92
Color dE
0.97
3.27
Gamma
2.19
2.17
Color Temperature
6,262 K
5,798 K
Picture Mode
Expert (Dark Space)
Movie
Color Temp Setting
Warm 50
Warm 2
Gamma Setting
2.2
2.2
Post Calibration
9.7
9.4
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.26
0.21
Color dE
0.62
1.22
Gamma
2.20
2.20
Color Temperature
6,460 K
6,565 K
White Balance Calibration
22 point
20 point
Color Calibration
Yes
Yes
Gray Uniformity
8.8
7.3
50% Uniformity Picture
50% Std. Dev.
1.063%
2.910%
50% DSE
0.120%
0.208%
5% Uniformity Picture
5% Std. Dev.
0.323%
0.455%
5% DSE
0.102%
0.082%
Black Uniformity
10
9.7
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
N/A
0.233%
Native Black Uniformity Picture
Native Std. Dev.
0.144%
0.749%
Viewing Angle
8.9
6.7
Viewing Angle Video
Chroma Graph
Color Washout
48°
27°
Hue Graph
Color Shift
27°
31°
Lightness Graph
Brightness Loss
70°
35°
Black Level Raise
70°
70°
Gamma Shift
70°
28°
Reflections
9.4
9.3
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Semi-gloss
Total Reflections
1.3%
1.4%
Indirect Reflections
0.1%
0.9%
Calculated Direct Reflections
1.1%
0.5%
HDR Native Gradient
7.8
7.0
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
8.0
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
10
8.0
50% Blue to 100% Blue
8.0
4.0
Low-Quality Content Smoothing
8.6
6.8
Low-Quality Content Smoothing Picture
Smoothing
9.0
6.5
Detail Preservation
7.5
7.5
Upscaling: Sharpness Processing
8.0
8.0
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
4.0 ms
100% Response Time
2.3 ms
8.8 ms
Flicker-Free
10
9.9
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
960 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
6.5
Frame Hold Time @ 24 fps
39.4 ms
32.9 ms
Frame Hold Time @ 60 fps
14.4 ms
7.9 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
9.5
9.5
Native Refresh Rate
144 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
144 Hz
144 Hz
4k VRR Minimum
< 20 Hz
< 20 Hz
1080p VRR Maximum
144 Hz
144 Hz
1080p VRR Minimum
< 20 Hz
< 20 Hz
1440p VRR Maximum
144 Hz
120 Hz
1440p VRR Minimum
< 20 Hz
< 20 Hz
VRR + Local Dimming
No Local Dimming
Yes
Inputs
Input Lag
9.7
9.6
1080p @ 60Hz
10.0 ms
11.7 ms
1080p @ 60Hz Outside Game Mode
89.6 ms
93.6 ms
1080p @ 120Hz
5.3 ms
7.0 ms
1080p @ 144Hz
4.6 ms
6.1 ms
1440p @ 60Hz
9.9 ms
11.8 ms
1440p @ 120Hz
5.3 ms
7.0 ms
1440p @ 144Hz
4.5 ms
N/A
4k @ 60Hz
9.9 ms
11.7 ms
4k @ 60Hz + 10-Bit HDR
9.9 ms
11.8 ms
4k @ 60Hz @ 4:4:4
9.9 ms
11.8 ms
4k @ 60Hz Outside Game Mode
89.5 ms
78.6 ms
4k @ 60Hz With Interpolation
85.5 ms
25.3 ms
4k @ 120Hz
5.3 ms
7.0 ms
4k @ 144Hz
4.6 ms
6.2 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
Yes
Yes
1440p @ 60Hz
Yes (forced resolution required)
Yes (forced resolution required)
1440p @ 120Hz
Yes
Yes
1440p @ 144Hz
Yes
No
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes
Yes
4k @ 120Hz @ 4:4:4
Yes
Yes
4k @ 144Hz
Yes
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
No
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 1,2,3,4)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
ATSC Tuner
1.0
1.0
USB 3.0
No
No
Variable Analog Audio Out
No
No
Wi-Fi Support
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)
Input Photos
Side Inputs Picture
Rear Inputs Picture
Total Inputs
HDMI
4
4
USB
3
2
Digital Optical Audio Out
1
1
Analog Audio Out 3.5mm
0
0
Analog Audio Out RCA
0
0
Component In
0
0
Composite In
0
0
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
No
eARC: DTS-HD Master Audio 7.1
Yes
No
eARC: LPCM Channels (Bitstream)
7.1
7.1
ARC: Dolby Digital 5.1
Yes
Yes
ARC: DTS 5.1
Yes
No
Optical: Dolby Digital 5.1
Yes
Yes
Optical: DTS 5.1
Yes
No
Sound Quality
Frequency Response
6.7
7.2
Frequency Response
Low-Frequency Extension
80.00 Hz
95.14 Hz
Std. Dev. @ 70
1.18 dB
2.23 dB
Std. Dev. @ 80
1.68 dB
2.30 dB
Std. Dev. @ Max
5.56 dB
5.24 dB
Max
84.2 dB SPL
92.4 dB SPL
Dynamic Range Compression
5.13 dB
4.90 dB
Distortion
7.7
7.7
Total Harmonic Distortion
Weighted THD @ 80
0.074
0.189
Weighted THD @ Max
0.408
0.885
IMD @ 80
1.32%
0.22%
IMD @ Max
2.89%
0.47%
Smart Features
Interface
8.5
8.5
Smart TV Picture
Smart OS
webOS
Tizen
Version
24
2024
Ease of Use
Easy
Easy
Smoothness
Average
Very Smooth
Time Taken to Select YouTube
2 s
2 s
Time Taken to Change Backlight
3 s
3 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
8.5
Apps Picture
App Selection
Great
Great
App Smoothness
Average
Average
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
Small
Voice Control
Many Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
Yes
Yes
Remote App
LG ThinQ
Samsung SmartThings
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
78 W
59 W
Power Consumption (Max)
215 W
184 W
Firmware
03.10.31
1066
Check Price
42"
OLED42C4PUA
Searching
Finding store43"
QN43QN90DAFXZA
Searching
Finding store48"
OLED48C4PUA
Searching
Finding store50"
QN50QN90DAFXZA
Searching
Finding store55"
OLED55C4PUA
Searching
Finding store55"
QN55QN90DAFXZA
Searching
Finding store65"
OLED65C4PUA
Searching
Finding store65"
QN65QN90DAFXZA
Searching
Finding store75"
QN75QN90DAFXZA
Searching
Finding store77"
OLED77C4PUA
Searching
Finding store83"
OLED83C4PUA
Searching
Finding store85"
QN85QN90DAFXZA
Searching
Finding store98"
QN98QN90DAFXZA
Searching
Finding store
LG C4 OLED
Samsung QN90D/QN90DD QLED
Comments
LG C4 OLED vs Samsung QN90D/QN90DD QLED: Main Discussion
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