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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
Samsung QN90A QLED vs LG CX OLED
Side-by-Side Comparison
Products
Samsung QN90A QLED
LG CX OLED
Tested using Methodology v1.11
Updated Apr 16, 2025 03:55 PM
SEE PRICE
Amazon.comTested using Methodology v1.6
Updated Apr 16, 2025 03:25 PM
SEE PRICE
Amazon.com
Resolution4k
TypeLED
Sub-TypeVA
Resolution4k
TypeOLED
Sub-TypeWOLED
Variants
- QN43QN90AAFXZA (43")
- QN50QN90AAFXZA (50")
- QN55QN90AAFXZA (55")
- QN65QN90AAFXZA (65")
- QN75QN90AAFXZA (75")
- QN85QN90AAFXZA (85")
- QN98QN90AAFXZA (98")
- OLED48CXPUB (48")
- OLED55CXPUA (55")
- OLED65CXPUA (65")
- OLED77CXPUA (77")
Our Verdict
Samsung QN90A QLED
LG CX OLED
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"
QN43QN90AAFXZA
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48"
48"
OLED48CXPUB
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QN50QN90AAFXZA
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55"
QN55QN90AAFXZA
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OLED55CXPUA
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QN65QN90AAFXZA
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OLED65CXPUA
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QN75QN90AAFXZA
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77"
77"
OLED77CXPUA
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QN85QN90AAFXZA
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98"
QN98QN90AAFXZA
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Main Differences for-
-
Threshold
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 200x200
VESA 300x200
Borders
Borders Picture
Borders
0.35" (0.9 cm)
0.35" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
1.06" (2.7 cm)
1.93" (4.9 cm)
Build Quality
9.0
9.0
Build quality picture
Picture Quality
Contrast
8.7
10
Contrast Picture
Contrast
75,855 : 1
N/A
Native Contrast
3,640 : 1
Inf : 1
Blooming
8.5
Blooming Photo
Lighting Zone Transitions
7.5
Preferred LD Video, Moving Object
Local Dimming
Yes
No
Backlight
Full-Array
No Backlight
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
9.1
7.1
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
1,564 cd/m²
760 cd/m²
Peak 10% Window
1,609 cd/m²
817 cd/m²
Peak 25% Window
1,653 cd/m²
465 cd/m²
Peak 50% Window
1,216 cd/m²
311 cd/m²
Peak 100% Window
757 cd/m²
152 cd/m²
Sustained 2% Window
1,561 cd/m²
720 cd/m²
Sustained 10% Window
1,584 cd/m²
776 cd/m²
Sustained 25% Window
1,637 cd/m²
443 cd/m²
Sustained 50% Window
1,210 cd/m²
293 cd/m²
Sustained 100% Window
755 cd/m²
146 cd/m²
Automatic Brightness Limiting (ABL)
0.040
0.101
EOTF
Real Scene Highlight
681 cd/m²
HDR Brightness In Game Mode
9.2
6.7
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
1,499 cd/m²
749 cd/m²
Peak 10% Window
1,567 cd/m²
804 cd/m²
Peak 25% Window
1,608 cd/m²
457 cd/m²
Peak 50% Window
1,109 cd/m²
320 cd/m²
Peak 100% Window
749 cd/m²
152 cd/m²
Sustained 2% Window
1,492 cd/m²
633 cd/m²
Sustained 10% Window
1,552 cd/m²
768 cd/m²
Sustained 25% Window
1,593 cd/m²
433 cd/m²
Sustained 50% Window
1,106 cd/m²
302 cd/m²
Sustained 100% Window
748 cd/m²
147 cd/m²
Automatic Brightness Limiting (ABL)
0.051
0.096
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
9.3
7.0
Real Scene Peak Brightness
1,088 cd/m²
321 cd/m²
Peak 2% Window
1,086 cd/m²
459 cd/m²
Peak 10% Window
1,357 cd/m²
456 cd/m²
Peak 25% Window
1,372 cd/m²
414 cd/m²
Peak 50% Window
1,162 cd/m²
340 cd/m²
Peak 100% Window
674 cd/m²
176 cd/m²
Sustained 2% Window
1,064 cd/m²
439 cd/m²
Sustained 10% Window
1,302 cd/m²
435 cd/m²
Sustained 25% Window
1,350 cd/m²
395 cd/m²
Sustained 50% Window
1,152 cd/m²
324 cd/m²
Sustained 100% Window
671 cd/m²
146 cd/m²
Automatic Brightness Limiting (ABL)
0.038
0.069
Color Gamut
8.5
8.6
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
95.92%
97.32%
DCI P3 uv
95.92%
98.71%
Color Gamut Rec.2020 Picture
Rec 2020 xy
72.06%
71.67%
Rec 2020 uv
77.93%
75.65%
Color Volume
8.9
7.1
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
91.6%
44.2%
2020 Color Volume ITP Picture
10,000 cd/m² Rec 2020 Coverage ITP
48.3%
33.5%
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
Yes
No
Backlight
Full-Array
No Backlight
Pre Calibration
9.2
8.2
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
0.85
2.47
Color dE
1.39
1.77
Gamma
2.20
2.19
Color Temperature
6,620 K
7,034 K
Picture Mode
Movie
Expert (Dark Room)
Color Temp Setting
Warm 2
Warm 2
Gamma Setting
2.2
2.2
Post Calibration
9.5
9.6
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.24
0.16
Color dE
1.07
1.00
Gamma
2.20
2.20
Color Temperature
6,529 K
6,512 K
White Balance Calibration
20 point
22 point
Color Calibration
Yes
Yes
Gray Uniformity
7.1
8.5
50% Uniformity Picture
50% Std. Dev.
2.967%
1.526%
50% DSE
0.218%
0.135%
5% Uniformity Picture
5% Std. Dev.
0.680%
0.401%
5% DSE
0.102%
0.106%
Black Uniformity
9.7
10
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
0.211%
N/A
Native Black Uniformity Picture
Native Std. Dev.
0.737%
0.416%
Viewing Angle
7.0
8.4
Viewing Angle Video
Chroma Graph
Color Washout
24°
48°
Hue Graph
Color Shift
49°
32°
Lightness Graph
Brightness Loss
44°
62°
Black Level Raise
70°
70°
Gamma Shift
23°
57°
Reflections
9.2
9.3
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Glossy
Total Reflections
1.7%
1.5%
Indirect Reflections
0.9%
0.4%
Calculated Direct Reflections
0.8%
1.1%
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
7.8
8.7
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
7.0
8.0
Sharpness Picture - 480p
Pixels
Pixels Picture
Subpixel Layout
BGR
Type
LED
OLED
Sub-Type
VA
WOLED
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
8.7
9.9
Motion Blur Picture
Response Time Chart
80% Response Time
3.3 ms
0.3 ms
100% Response Time
8.9 ms
1.7 ms
Flicker-Free
9.9
10
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
960 Hz
0 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
6.5
4.9
Frame Hold Time @ 24 fps
32.8 ms
39.9 ms
Frame Hold Time @ 60 fps
7.8 ms
14.9 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
9.4
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
Yes (NVIDIA Certified)
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
9.7
9.5
1080p @ 60Hz
10.1 ms
13.6 ms
1080p @ 60Hz Outside Game Mode
76.8 ms
97.0 ms
1080p @ 120Hz
5.7 ms
6.9 ms
1080p @ 144Hz
N/A
1440p @ 60Hz
10.0 ms
13.8 ms
1440p @ 120Hz
5.9 ms
6.9 ms
1440p @ 144Hz
N/A
4k @ 60Hz
9.8 ms
13.6 ms
4k @ 60Hz + 10-Bit HDR
9.7 ms
13.5 ms
4k @ 60Hz @ 4:4:4
9.8 ms
13.6 ms
4k @ 60Hz Outside Game Mode
76.6 ms
97.0 ms
4k @ 60Hz With Interpolation
20.8 ms
92.9 ms
4k @ 120Hz
5.3 ms
6.7 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
Yes (native support)
1080p @ 144Hz
No
1440p @ 60Hz
Yes
Yes (forced resolution required)
1440p @ 120Hz
Yes
Yes (native support)
1440p @ 144Hz
No
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes
Yes (native support)
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 doesn't output 1440p
PS5 can't do 1440p
1080p @ 120Hz
Yes
Yes
HDR
Yes
Xbox Series X Screenshot
VRR
Yes
PS5 can't do VRR yet
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+
Yes
No
Dolby Vision
No
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 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
3.0 (NEXTGEN TV)
USB 3.0
No
No
Variable Analog Audio Out
No
Yes
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
2
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 (incl. adapter)
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
0
0
SD/SDHC
0
Audio Passthrough
ARC/eARC Port
eARC
Yes
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
6.9
7.6
Frequency Response
Low-Frequency Extension
95.14 Hz
63.50 Hz
Std. Dev. @ 70
3.58 dB
2.12 dB
Std. Dev. @ 80
3.54 dB
2.12 dB
Std. Dev. @ Max
5.58 dB
5.18 dB
Max
92.9 dB SPL
91.2 dB SPL
Dynamic Range Compression
5.28 dB
5.62 dB
Distortion
7.7
7.0
Total Harmonic Distortion
Weighted THD @ 80
0.129
0.085
Weighted THD @ Max
0.624
0.519
IMD @ 80
0.41%
2.00%
IMD @ Max
1.18%
10.89%
Smart Features
Interface
8.5
8.5
Smart TV Picture
Smart OS
Tizen
webOS
Version
2021
5.0
Ease of Use
Easy
Easy
Smoothness
Very Smooth
Average
Time Taken to Select YouTube
2 s
2 s
Time Taken to Change Backlight
5 s
7 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
8.5
8.0
Apps Picture
App Selection
Great
Great
App Smoothness
Very Smooth
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
8.5
9.0
Remote Picture
Size
Small
Large
Voice Control
Many Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
Yes
Yes
Remote App
Samsung SmartThings
LG TV Plus
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
53 W
75 W
Power Consumption (Max)
179 W
178 W
Firmware
1054
03.00.45
Check Price
43"
QN43QN90AAFXZA
Searching
Finding store43"
48"
48"
OLED48CXPUB
Searching
Finding store50"
QN50QN90AAFXZA
Searching
Finding store50"
55"
QN55QN90AAFXZA
Searching
Finding store55"
OLED55CXPUA
Searching
Finding store65"
QN65QN90AAFXZA
Searching
Finding store65"
OLED65CXPUA
Searching
Finding store75"
QN75QN90AAFXZA
Searching
Finding store75"
77"
77"
OLED77CXPUA
Searching
Finding store85"
QN85QN90AAFXZA
Searching
Finding store85"
98"
QN98QN90AAFXZA
Searching
Finding store98"
Samsung QN90A QLED
LG CX OLED
Comments
LG CX OLED vs Samsung QN90A QLED: Main Discussion
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