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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
LG CX OLED vs Samsung QN90A QLED
Side-by-Side Comparison
Products
LG CX OLED
Samsung QN90A QLED
Tested using Methodology v1.6
Updated Apr 16, 2025 03:25 PM
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Amazon.comTested using Methodology v1.11
Updated Apr 16, 2025 03:55 PM
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Amazon.com
Resolution4k
TypeOLED
Sub-TypeWOLED
Resolution4k
TypeLED
Sub-TypeVA
Variants
- OLED48CXPUB (48")
- OLED55CXPUA (55")
- OLED65CXPUA (65")
- OLED77CXPUA (77")
- QN43QN90AAFXZA (43")
- QN50QN90AAFXZA (50")
- QN55QN90AAFXZA (55")
- QN65QN90AAFXZA (65")
- QN75QN90AAFXZA (75")
- QN85QN90AAFXZA (85")
- QN98QN90AAFXZA (98")
Our Verdict
LG CX OLED
Samsung QN90A QLED
The LG GX OLED and the Samsung QN90A QLED are both excellent TVs, but they use different panel types. The LG uses an OLED panel that can turn individual pixels off, resulting in perfect black levels. It also has wider viewing angles and a near-instantaneous response time. However, the Samsung uses an LCD panel with Mini LED as backlighting, so it's much brighter, allowing it to make highlights pop in HDR. They both have a 120Hz panel with HDMI 2.1 support for gaming, but the Samsung has one HDMI 2.1 input, while the LG has four.
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43"
43"
QN43QN90AAFXZA
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Amazon.com48"
OLED48CXPUB
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Amazon.com48"
50"
50"
QN50QN90AAFXZA
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Amazon.com55"
OLED55CXPUA
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Amazon.com55"
QN55QN90AAFXZA
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Amazon.com65"
OLED65CXPUA
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Amazon.com65"
QN65QN90AAFXZA
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Amazon.com75"
75"
QN75QN90AAFXZA
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Amazon.com77"
OLED77CXPUA
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Amazon.com77"
85"
85"
QN85QN90AAFXZA
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Amazon.com98"
98"
QN98QN90AAFXZA
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Amazon.comMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.8
8.4
Contrast
10
8.7
SDR Brightness
7.0
9.3
HDR Brightness
7.1
9.1
Gray Uniformity
8.5
7.1
Full Comparison
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Month 26
50% Gray
Month 26
50% Gray
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 300x200
VESA 200x200
Borders
Borders Picture
Borders
0.35" (0.9 cm)
0.35" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
1.93" (4.9 cm)
1.06" (2.7 cm)
Build Quality
9.0
9.0
Build quality picture
Picture Quality
Contrast
10
8.7
Contrast Picture
Contrast
N/A
75,855 : 1
Native Contrast
Inf : 1
3,640 : 1
Blooming
8.5
Blooming Photo
Lighting Zone Transitions
7.5
Preferred LD Video, Moving Object
Local Dimming
No
Yes
Backlight
No Backlight
Full-Array
Dimming Zones Count Of Tested TV
576
Contrast And Dark Details In Game Mode
8.0
Blooming Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
HDR Brightness
7.1
9.1
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
1,244 cd/m²
Yellow Skyscraper (~700 cd/m²)
382 cd/m²
Landscape Pool (~300 cd/m²)
349 cd/m²
Peak 2% Window
760 cd/m²
1,564 cd/m²
Peak 10% Window
817 cd/m²
1,609 cd/m²
Peak 25% Window
465 cd/m²
1,653 cd/m²
Peak 50% Window
311 cd/m²
1,216 cd/m²
Peak 100% Window
152 cd/m²
757 cd/m²
Sustained 2% Window
720 cd/m²
1,561 cd/m²
Sustained 10% Window
776 cd/m²
1,584 cd/m²
Sustained 25% Window
443 cd/m²
1,637 cd/m²
Sustained 50% Window
293 cd/m²
1,210 cd/m²
Sustained 100% Window
146 cd/m²
755 cd/m²
Automatic Brightness Limiting (ABL)
0.101
0.040
EOTF
Real Scene Highlight
681 cd/m²
HDR Brightness In Game Mode
6.7
9.2
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
1,086 cd/m²
Yellow Skyscraper (~700 cd/m²)
450 cd/m²
Landscape Pool (~300 cd/m²)
367 cd/m²
Peak 2% Window
749 cd/m²
1,499 cd/m²
Peak 10% Window
804 cd/m²
1,567 cd/m²
Peak 25% Window
457 cd/m²
1,608 cd/m²
Peak 50% Window
320 cd/m²
1,109 cd/m²
Peak 100% Window
152 cd/m²
749 cd/m²
Sustained 2% Window
633 cd/m²
1,492 cd/m²
Sustained 10% Window
768 cd/m²
1,552 cd/m²
Sustained 25% Window
433 cd/m²
1,593 cd/m²
Sustained 50% Window
302 cd/m²
1,106 cd/m²
Sustained 100% Window
147 cd/m²
748 cd/m²
Automatic Brightness Limiting (ABL)
0.096
0.051
Game Mode EOTF
Real Scene Highlight
563 cd/m²
PQ EOTF Tracking
6.6
PQ EOTF Graph
600 Nit Tracking Delta
0.0365
1000 Nit Tracking Delta
0.0365
4000 Nit Tracking Delta
0.0318
SDR Brightness
7.0
9.3
Real Scene Peak Brightness
321 cd/m²
1,088 cd/m²
Peak 2% Window
459 cd/m²
1,086 cd/m²
Peak 10% Window
456 cd/m²
1,357 cd/m²
Peak 25% Window
414 cd/m²
1,372 cd/m²
Peak 50% Window
340 cd/m²
1,162 cd/m²
Peak 100% Window
176 cd/m²
674 cd/m²
Sustained 2% Window
439 cd/m²
1,064 cd/m²
Sustained 10% Window
435 cd/m²
1,302 cd/m²
Sustained 25% Window
395 cd/m²
1,350 cd/m²
Sustained 50% Window
324 cd/m²
1,152 cd/m²
Sustained 100% Window
146 cd/m²
671 cd/m²
Automatic Brightness Limiting (ABL)
0.069
0.038
Color Gamut
8.6
8.5
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
97.32%
95.92%
DCI P3 uv
98.71%
95.92%
Color Gamut Rec.2020 Picture
Rec 2020 xy
71.67%
72.06%
Rec 2020 uv
75.65%
77.93%
Color Volume
7.1
8.9
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
44.2%
91.6%
2020 Color Volume ITP Picture
10,000 cd/m² Rec 2020 Coverage ITP
33.5%
48.3%
White Luminance
1,586 cd/m²
Red Luminance
322 cd/m²
Green Luminance
1,184 cd/m²
Blue Luminance
91 cd/m²
Cyan Luminance
1,290 cd/m²
Magenta Luminance
393 cd/m²
Yellow Luminance
1,448 cd/m²
Normalized DCI P3 Coverage ITP
80.6%
Normalized Rec 2020 Coverage ITP
61.0%
Local Dimming
10
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
No
Yes
Backlight
No Backlight
Full-Array
Pre Calibration
8.2
9.2
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
2.47
0.85
Color dE
1.77
1.39
Gamma
2.19
2.20
Color Temperature
7,034 K
6,620 K
Picture Mode
Expert (Dark Room)
Movie
Color Temp Setting
Warm 2
Warm 2
Gamma Setting
2.2
2.2
Post Calibration
9.6
9.5
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.16
0.24
Color dE
1.00
1.07
Gamma
2.20
2.20
Color Temperature
6,512 K
6,529 K
White Balance Calibration
22 point
20 point
Color Calibration
Yes
Yes
Gray Uniformity
8.5
7.1
50% Uniformity Picture
50% Std. Dev.
1.526%
2.967%
50% DSE
0.135%
0.218%
5% Uniformity Picture
5% Std. Dev.
0.401%
0.680%
5% DSE
0.106%
0.102%
Black Uniformity
10
9.7
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
N/A
0.211%
Native Black Uniformity Picture
Native Std. Dev.
0.416%
0.737%
Viewing Angle
8.4
7.0
Viewing Angle Video
Chroma Graph
Color Washout
48°
24°
Hue Graph
Color Shift
32°
49°
Lightness Graph
Brightness Loss
62°
44°
Black Level Raise
70°
70°
Gamma Shift
57°
23°
Reflections
9.3
9.2
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Glossy
Total Reflections
1.5%
1.7%
Indirect Reflections
0.4%
0.9%
Calculated Direct Reflections
1.1%
0.8%
Local Dimming In Game Mode
10
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
No
Backlight
No Backlight
HDR Native Gradient
8.7
7.8
HDR Gradient Picture
100% Black to 50% Gray
6.0
50% Gray to 100% White
8.0
100% Black to 50% Red
8.0
50% Red to 100% Red
10
100% Black to 50% Green
8.0
50% Green to 100% Green
6.0
100% Black to 50% Blue
10
50% Blue to 100% Blue
6.0
Color Depth
10 Bit
Red (Std. Dev.)
0.083
Green (Std. Dev.)
0.105
Blue (Std. Dev.)
0.092
Gray (Std. Dev.)
0.081
Low-Quality Content Smoothing
6.3
Low-Quality Content Smoothing Picture
Smoothing
6.0
Detail Preservation
7.0
Upscaling: Sharpness Processing
8.0
7.0
Sharpness Picture - 480p
Pixels
Pixels Picture
Subpixel Layout
BGR
Type
OLED
LED
Sub-Type
WOLED
VA
720p Input
8.0
720p Picture
1080p Input
9.0
1080p Picture
4k Input
10
4k Picture
8k Input
0.0
8k Picture
Temporary Image Retention
10
Image Retention Picture
IR after 0 min recovery
0.00%
IR after 2 min recovery
0.00%
IR after 4 min recovery
0.00%
IR after 6 min recovery
0.00%
IR after 8 min recovery
0.00%
IR after 10 min recovery
0.00%
Permanent Burn-In Risk
2.0
Permanent Burn-In Risk
Yes
Motion
Response Time
9.9
8.7
Motion Blur Picture
Response Time Chart
80% Response Time
0.3 ms
3.3 ms
100% Response Time
1.7 ms
8.9 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
Yes
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
4.9
6.5
Frame Hold Time @ 24 fps
39.9 ms
32.8 ms
Frame Hold Time @ 60 fps
14.9 ms
7.8 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
9.4
Native Refresh Rate
120 Hz
120 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
120 Hz
4k VRR Minimum
< 20 Hz
< 20 Hz
1080p VRR Maximum
120 Hz
120 Hz
1080p VRR Minimum
< 20 Hz
< 20 Hz
1440p VRR Maximum
120 Hz
120 Hz
1440p VRR Minimum
< 20 Hz
< 20 Hz
VRR + Local Dimming
Yes
VRR Supported Connectors
HDMI
Inputs
Input Lag
9.5
9.7
1080p @ 60Hz
13.6 ms
10.1 ms
1080p @ 60Hz Outside Game Mode
97.0 ms
76.8 ms
1080p @ 120Hz
6.9 ms
5.7 ms
1080p @ 144Hz
N/A
1440p @ 60Hz
13.8 ms
10.0 ms
1440p @ 120Hz
6.9 ms
5.9 ms
1440p @ 144Hz
N/A
4k @ 60Hz
13.6 ms
9.8 ms
4k @ 60Hz + 10-Bit HDR
13.5 ms
9.7 ms
4k @ 60Hz @ 4:4:4
13.6 ms
9.8 ms
4k @ 60Hz Outside Game Mode
97.0 ms
76.6 ms
4k @ 60Hz With Interpolation
92.9 ms
20.8 ms
4k @ 120Hz
6.7 ms
5.3 ms
4k @ 144Hz
N/A
8k @ 60Hz
N/A
N/A
1080p with Variable Refresh Rate
5.9 ms
1440p with VRR
6.2 ms
4k with VRR
5.9 ms
8k with VRR
N/A
Supported Resolutions
9.6
9.6
Resolution
4k
4k
480p @ 59.94Hz (Widescreen)
Yes
720p @ 59.94Hz
Yes
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
Yes (native support)
Yes
1080p @ 144Hz
No
1440p @ 60Hz
Yes (forced resolution required)
Yes
1440p @ 120Hz
Yes (native support)
Yes
1440p @ 144Hz
No
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes (native support)
Yes
4k @ 120Hz @ 4:4:4
Yes
4k @ 144Hz
No
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
PS5 can't do 1440p
PS5 doesn't output 1440p
1080p @ 120Hz
Yes
Yes
HDR
Yes
Xbox Series X Screenshot
VRR
PS5 can't do VRR yet
Yes
PS5, 4k @ 120Hz + HDR
Yes
PS5, 4k @ 60Hz + HDR
Yes
Xbox Series X, 4k @ 120Hz + HDR
Yes
Xbox Series X, 4k @ 120Hz
Yes
Yes
Xbox Series X, 4k @ 60Hz + HDR
Yes
Xbox Series X, 1440p @ 120Hz
Yes
Yes
Xbox Series X, 1080p @ 120Hz
Yes
Yes
Xbox Series X, Variable Refresh Rate
Yes
Yes
Xbox Series X|S Compatibility
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
Yes
4k @ 120Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
HDR
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 4)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
ATSC Tuner
3.0 (NEXTGEN TV)
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
Audio Passthrough
ARC/eARC Port
Yes
eARC
eARC: Dolby Atmos Over Dolby Digital Plus
Yes
Yes
eARC: Dolby Digital Plus 7.1
Yes
eARC: LPCM 7.1 Over Dolby MAT
Yes
eARC: Dolby TrueHD 7.1
Yes
ARC
Yes (HDMI 2)
eARC: DTS:X Over DTS-HD MA
No
No
eARC: DTS-HD Master Audio 7.1
No
eARC: LPCM Channels (Bitstream)
7.1
ARC: Dolby Digital 5.1
Yes
Yes
ARC: DTS 5.1
No
No
Optical: Dolby Digital 5.1
Yes
Yes
Optical: DTS 5.1
No
No
Sound Quality
Frequency Response
7.6
6.9
Frequency Response
Low-Frequency Extension
63.50 Hz
95.14 Hz
Std. Dev. @ 70
2.12 dB
3.58 dB
Std. Dev. @ 80
2.12 dB
3.54 dB
Std. Dev. @ Max
5.18 dB
5.58 dB
Max
91.2 dB SPL
92.9 dB SPL
Dynamic Range Compression
5.62 dB
5.28 dB
Distortion
7.0
7.7
Total Harmonic Distortion
Weighted THD @ 80
0.085
0.129
Weighted THD @ Max
0.519
0.624
IMD @ 80
2.00%
0.41%
IMD @ Max
10.89%
1.18%
Smart Features
Interface
8.5
8.5
Smart TV Picture
Smart OS
webOS
Tizen
Version
5.0
2021
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
5 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
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
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
75 W
53 W
Power Consumption (Max)
178 W
179 W
Firmware
03.00.45
1054
Check Price
43"
43"
QN43QN90AAFXZA
SEE PRICE
Amazon.com48"
OLED48CXPUB
SEARCH
Amazon.com48"
50"
50"
QN50QN90AAFXZA
SEE PRICE
Amazon.com55"
OLED55CXPUA
SEE PRICE
Amazon.com55"
QN55QN90AAFXZA
SEE PRICE
Amazon.com65"
OLED65CXPUA
SEE PRICE
Amazon.com65"
QN65QN90AAFXZA
SEE PRICE
Amazon.com75"
75"
QN75QN90AAFXZA
SEE PRICE
Amazon.com77"
OLED77CXPUA
SEE PRICE
Amazon.com77"
85"
85"
QN85QN90AAFXZA
SEE PRICE
Amazon.com98"
98"
QN98QN90AAFXZA
SEE PRICE
Amazon.com
LG CX OLED
Samsung QN90A QLED
Comments
LG CX OLED vs Samsung QN90A QLED: Main Discussion
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