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- Table of Contents
- Top
- Main Differences
- Market Context
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
LG C9 OLED vs Samsung Q90/Q90T QLED
Side-by-Side Comparison
Products
LG C9 OLED
Samsung Q90/Q90T QLED
Tested using Methodology v1.5
Updated Apr 12, 2024 03:47 PM
SEE PRICE
Amazon.comTested using Methodology v1.6
Updated Apr 16, 2025 03:46 PM
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Amazon.com
TypeOLED
Sub-TypeWRGB
Resolution4k
TypeLED
Sub-TypeVA
Resolution4k
Variants
- OLED55C9PUA (55")
- OLED65C9PUA (65")
- OLED77C9PUA (77")
- QN55Q90TAFXZA (55")
- QN65Q90TAFXZA (65")
- QN75Q90TAFXZA (75")
- QN85Q90TAFXZA (85")
Our Verdict
LG C9 OLED
Samsung Q90/Q90T QLED
Overall, the LG C9 OLED is better than the Samsung Q90T QLED. Due to OLED's emissive technology, the LG can produce perfect blacks. The LG also has better uniformity, faster response time, and it supports NVIDIA's G-SYNC to reduce screen tearing when gaming. However, the Samsung can get much brighter, it has lower input lag, and there's no risk of permanent burn-in.
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55"
OLED55C9PUA
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QN55Q90TAFXZA
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OLED65C9PUA
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QN65Q90TAFXZA
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75"
QN75Q90TAFXZA
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OLED77C9PUA
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85"
85"
QN85Q90TAFXZA
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Finding storeMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.8
8.5
Local Dimming
10
8.0
Contrast
10
8.7
Black Uniformity
10
7.5
SDR Peak Brightness
7.1
8.7
Gray Uniformity
8.6
7.1
Full Comparison
Market Context
Market Context
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Month 26
50% Gray
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 300x200
VESA 200x200
Borders
Borders Picture
Borders
0.37" (0.9 cm)
0.35" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
1.87" (4.8 cm)
1.54" (3.9 cm)
Build Quality
9.0
9.0
Build quality picture
Picture Quality
Contrast
10
8.7
Checkerboard Picture
Native Contrast
Inf : 1
4,004 : 1
Contrast with local dimming
N/A
10,528 : 1
SDR Brightness
7.1
8.7
Real Scene Peak Brightness
335 cd/m²
602 cd/m²
Peak 2% Window
447 cd/m²
1,147 cd/m²
Peak 10% Window
444 cd/m²
1,300 cd/m²
Peak 25% Window
398 cd/m²
912 cd/m²
Peak 50% Window
330 cd/m²
726 cd/m²
Peak 100% Window
157 cd/m²
534 cd/m²
Sustained 2% Window
430 cd/m²
1,093 cd/m²
Sustained 10% Window
426 cd/m²
1,256 cd/m²
Sustained 25% Window
382 cd/m²
907 cd/m²
Sustained 50% Window
317 cd/m²
724 cd/m²
Sustained 100% Window
151 cd/m²
531 cd/m²
Automatic Brightness Limiting (ABL)
0.072
0.045
Local Dimming
10
8.0
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
No
Yes
Backlight
No Backlight
Full-Array
Local Dimming In Game Mode
7.0
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
Yes
Backlight
Full-Array
HDR Brightness
7.3
8.9
EOTF
Real Scene Highlight
726 cd/m²
1,162 cd/m²
Peak 2% Window
855 cd/m²
1,170 cd/m²
Peak 10% Window
845 cd/m²
1,464 cd/m²
Peak 25% Window
530 cd/m²
1,033 cd/m²
Peak 50% Window
301 cd/m²
809 cd/m²
Peak 100% Window
145 cd/m²
631 cd/m²
Sustained 2% Window
814 cd/m²
1,124 cd/m²
Sustained 10% Window
802 cd/m²
1,400 cd/m²
Sustained 25% Window
506 cd/m²
1,023 cd/m²
Sustained 50% Window
286 cd/m²
807 cd/m²
Sustained 100% Window
138 cd/m²
628 cd/m²
Automatic Brightness Limiting (ABL)
0.109
0.040
HDR Brightness In Game Mode
8.8
Game Mode EOTF
Real Scene Highlight
1,038 cd/m²
Peak 2% Window
565 cd/m²
Peak 10% Window
1,425 cd/m²
Peak 25% Window
1,276 cd/m²
Peak 50% Window
911 cd/m²
Peak 100% Window
653 cd/m²
Sustained 2% Window
562 cd/m²
Sustained 10% Window
1,353 cd/m²
Sustained 25% Window
1,247 cd/m²
Sustained 50% Window
908 cd/m²
Sustained 100% Window
649 cd/m²
Automatic Brightness Limiting (ABL)
0.051
Gray Uniformity
8.6
7.1
50% Uniformity Picture
50% Std. Dev.
0.989%
3.839%
50% DSE
0.128%
0.208%
5% Uniformity Picture
5% Std. Dev.
0.499%
0.360%
5% DSE
0.102%
0.092%
Black Uniformity
10
7.5
Native Black Uniformity Picture
Native Std. Dev.
0.249%
1.021%
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
N/A
1.019%
Viewing Angle
8.8
7.3
Viewing Angle Video
Chroma Graph
Color Washout
49°
38°
Hue Graph
Color Shift
31°
50°
Lightness Graph
Brightness Loss
67°
45°
Black Level Raise
70°
70°
Gamma Shift
67°
22°
Reflections
9.3
9.4
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Glossy
Total Reflections
1.4%
1.3%
Indirect Reflections
0.2%
0.8%
Calculated Direct Reflections
1.2%
0.5%
Pre Calibration
7.6
7.4
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
3.46
3.91
Color dE
2.11
1.95
Gamma
2.17
2.22
Color Temperature
5,929 K
5,920 K
Picture Mode
Expert (Dark Room)
Movie
Color Temp Setting
Warm 2
Warm 2
Gamma Setting
2.2
2.2
Post Calibration
9.5
9.5
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.44
0.34
Color dE
0.91
1.08
Gamma
2.18
2.21
Color Temperature
6,539 K
6,529 K
White Balance Calibration
22 point
20 point
Color Calibration
Yes
Yes
Auto-Calibration Function
Yes
480p Input
8.0
8.0
480p Picture
720p Input
8.0
8.0
720p Picture
1080p Input
9.0
9.0
1080p Picture
4k Input
10
10
4k Picture
8k Input
0.0
0.0
8k Picture
Pixels
Pixels Picture
Type
OLED
LED
Sub-Type
WRGB
VA
Color Gamut
8.6
8.1
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
97.21%
89.13%
DCI P3 uv
98.68%
93.18%
Color Gamut Rec.2020 Picture
Rec 2020 xy
71.57%
67.24%
Rec 2020 uv
75.53%
75.08%
EOTF
Color Volume
7.4
7.8
P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
84.6%
85.2%
10,000 cd/m² DCI P3 Coverage ITP
46.8%
51.6%
2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
61.7%
70.2%
10,000 cd/m² Rec 2020 Coverage ITP
34.4%
41.9%
Gradient
9.0
8.5
Gradient Picture
Color Depth
10 Bit
10 Bit
Red (Std. Dev.)
0.081
0.101
Green (Std. Dev.)
0.091
0.107
Blue (Std. Dev.)
0.072
0.104
Gray (Std. Dev.)
0.074
0.066
Temporary Image Retention
10
10
Image Retention Picture
IR after 0 min recovery
0.00%
0.00%
IR after 2 min recovery
0.00%
0.00%
IR after 4 min recovery
0.00%
0.00%
IR after 6 min recovery
0.00%
0.00%
IR after 8 min recovery
0.00%
0.00%
IR after 10 min recovery
0.00%
0.00%
Permanent Burn-In Risk
2.0
10
Permanent Burn-In Risk
Yes
No
Motion
Response Time
9.9
8.5
Motion Blur Picture
Response Time Chart
80% Response Time
0.2 ms
3.5 ms
100% Response Time
2.4 ms
10.6 ms
Flicker-Free
10
9.9
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
960 Hz
Black Frame Insertion (BFI)
8.7
10
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
6.9
Frame Hold Time @ 24 fps
39.3 ms
31.1 ms
Frame Hold Time @ 60 fps
14.3 ms
6.1 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
7.6
9.4
Native Refresh Rate
120 Hz
120 Hz
Variable Refresh Rate
Yes
Yes
HDMI Forum VRR
Yes
Unknown
FreeSync
No
Yes
G-SYNC Compatible
Yes (NVIDIA Certified)
Yes
4k VRR Maximum
60 Hz
120 Hz
4k VRR Minimum
40 Hz
< 20 Hz
1080p VRR Maximum
120 Hz
120 Hz
1080p VRR Minimum
40 Hz
< 20 Hz
1440p VRR Maximum
120 Hz
120 Hz
1440p VRR Minimum
40 Hz
< 20 Hz
VRR Supported Connectors
HDMI
HDMI
Inputs
Input Lag
8.8
9.7
1080p @ 60Hz
13.5 ms
10.5 ms
1080p @ 60Hz Outside Game Mode
100.8 ms
90.2 ms
1440p @ 60Hz
13.9 ms
10.2 ms
4k @ 60Hz
13.5 ms
10.4 ms
4k @ 60Hz + 10-Bit HDR
13.4 ms
10.2 ms
4k @ 60Hz @ 4:4:4
13.3 ms
10.6 ms
4k @ 60Hz Outside Game Mode
50.6 ms
70.2 ms
4k @ 60Hz With Interpolation
96.7 ms
21.6 ms
8k @ 60Hz
N/A
N/A
1080p @ 120Hz
6.8 ms
5.9 ms
1440p @ 120Hz
6.6 ms
6.3 ms
4k @ 120Hz
5.4 ms
1080p with Variable Refresh Rate
6.3 ms
6.0 ms
1440p with VRR
6.7 ms
6.4 ms
4k with VRR
15.9 ms
6.1 ms
8k with VRR
N/A
N/A
Auto Low Latency Mode (ALLM)
Yes
Yes
Supported Resolutions
9.6
9.6
Resolution
4k
4k
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
Yes (native support)
Yes (native support)
1440p @ 60Hz
Yes (forced resolution required)
Yes (native support)
1440p @ 120Hz
Yes (native support)
Yes (native support)
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes (native support)
8k @ 30Hz or 24Hz
No
No
8k @ 60Hz
No
No
Advanced Console Compatibility
PS5 Screenshot
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
PS5, 4k @ 120Hz + HDR
Yes
PS5, 4k @ 120Hz
Yes
PS5, 4k @ 60Hz + HDR
Yes
PS5, 1440p @ 120Hz
PS5 can't do 1440p
PS5, 1080p @ 120Hz
Yes
PS5, Variable Refresh Rate
PS5 can't do VRR yet
Xbox Series X, 4k @ 120Hz + HDR
Yes
Xbox Series X, 4k @ 120Hz
Yes
Xbox Series X, 4k @ 60Hz + HDR
Yes
Xbox Series X, 1440p @ 120Hz
Yes
Xbox Series X, 1080p @ 120Hz
Yes
Xbox Series X, Variable Refresh Rate
Yes
Inputs Specifications
HDR10
Yes
Yes
HDR10+
No
Yes
Dolby Vision
Yes
No
HLG
Yes
Yes
3D
No
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 4)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
USB 3.0
No
No
Variable Analog Audio Out
Yes
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
1
0
Analog Audio Out RCA
0
0
Component In
0
0
Composite In
1 (incl. adapter)
0
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
0
0
SD/SDHC
0
0
Audio Passthrough
ARC
Yes (HDMI 2)
Yes (HDMI 3)
eARC support
Yes
Yes
Dolby Atmos via TrueHD via eARC
Yes
Yes
DTS:X via DTS-HD MA via eARC
Yes
No
5.1 Dolby Digital via ARC
Yes
Yes
5.1 DTS via ARC
Yes
No
5.1 Dolby Digital via Optical
Yes
Yes
5.1 DTS via Optical
Yes
No
Sound Quality
Frequency Response
7.4
6.5
Frequency Response
Low-Frequency Extension
67.27 Hz
89.80 Hz
Std. Dev. @ 70
2.67 dB
4.22 dB
Std. Dev. @ 80
2.74 dB
4.44 dB
Std. Dev. @ Max
4.94 dB
6.62 dB
Max
87.8 dB SPL
94.3 dB SPL
Dynamic Range Compression
4.00 dB
7.07 dB
Distortion
6.0
7.3
Total Harmonic Distortion
Weighted THD @ 80
0.263
0.152
Weighted THD @ Max
3.477
0.788
IMD @ 80
10.58%
0.85%
IMD @ Max
25.15%
3.72%
Smart Features
Interface
8.5
8.0
Smart TV Picture
Smart OS
WebOS
Tizen
Version
4.5
2020
Ease of Use
Easy
Easy
Smoothness
Average
Very Smooth
Time Taken to Select YouTube
2 s
2 s
Time Taken to Change Backlight
7 s
6 s
Advanced Options
Many
Many
Ad-Free
0.0
0.0
Ads Picture
Ads
Yes
Yes
Opt-out
No
No
Suggested Content in Home
Yes
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 TV Plus
Samsung SmartThings
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
89 W
63 W
Power Consumption (Max)
171 W
207 W
Firmware
03.50.22
1113
Check Price
55"
OLED55C9PUA
Searching
Finding store55"
QN55Q90TAFXZA
Searching
Finding store65"
OLED65C9PUA
Searching
Finding store65"
QN65Q90TAFXZA
Searching
Finding store75"
75"
QN75Q90TAFXZA
Searching
Finding store77"
OLED77C9PUA
Searching
Finding store77"
85"
85"
QN85Q90TAFXZA
Searching
Finding store
LG C9 OLED
Samsung Q90/Q90T QLED
Comments
LG C9 OLED vs Samsung Q90/Q90T QLED: Main Discussion
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