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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
Samsung Q90/Q90T QLED vs LG GX OLED
Side-by-Side Comparison
Products
Samsung Q90/Q90T QLED
LG GX OLED
Tested using Methodology v1.6
Updated Apr 16, 2025 03:46 PM
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Amazon.comTested using Methodology v1.6
Updated Jan 23, 2024 01:46 PM
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TypeLED
Sub-TypeVA
Resolution4k
TypeOLED
Sub-TypeWOLED
Resolution4k
Variants
- QN55Q90TAFXZA (55")
- QN65Q90TAFXZA (65")
- QN75Q90TAFXZA (75")
- QN85Q90TAFXZA (85")
- OLED55GXPUA (55")
- OLED65GXPUA (65")
- OLED77GXPUA (77")
Our Verdict
Samsung Q90/Q90T QLED
LG GX OLED
The Samsung Q90/Q90T QLED and the LG GX OLED are both excellent premium TVs with different panel types. The LG uses an OLED panel that has an infinite contrast ratio, resulting in perfect blacks. It also has wider viewing angles than the Samsung and the response time is much quicker, resulting in smooth motion. On the other hand, the Samsung is a better choice for use in well-lit rooms or HDR content because it gets much brighter in both SDR and HDR. Also, the Samsung doesn't have the risk of permanent burn-in like the LG.
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55"
QN55Q90TAFXZA
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77"
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QN85Q90TAFXZA
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Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.5
8.8
Local Dimming
8.0
10
Contrast
8.7
10
Black Uniformity
7.5
10
SDR Brightness
8.7
6.7
Gray Uniformity
7.1
8.7
Full Comparison
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 200x200
VESA 300x300
Borders
Borders Picture
Borders
0.35" (0.9 cm)
0.35" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
1.54" (3.9 cm)
0.94" (2.4 cm)
Build Quality
9.0
9.5
Build quality picture
Picture Quality
Contrast
8.7
10
Checkerboard Picture
Native Contrast
4,004 : 1
Inf : 1
Contrast with local dimming
10,528 : 1
N/A
SDR Brightness
8.7
6.7
Real Scene Peak Brightness
602 cd/m²
292 cd/m²
Peak 2% Window
1,147 cd/m²
388 cd/m²
Peak 10% Window
1,300 cd/m²
393 cd/m²
Peak 25% Window
912 cd/m²
358 cd/m²
Peak 50% Window
726 cd/m²
301 cd/m²
Peak 100% Window
534 cd/m²
177 cd/m²
Sustained 2% Window
1,093 cd/m²
369 cd/m²
Sustained 10% Window
1,256 cd/m²
373 cd/m²
Sustained 25% Window
907 cd/m²
340 cd/m²
Sustained 50% Window
724 cd/m²
287 cd/m²
Sustained 100% Window
531 cd/m²
168 cd/m²
Automatic Brightness Limiting (ABL)
0.045
0.051
Local Dimming
8.0
10
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
Yes
No
Backlight
Full-Array
No Backlight
Local Dimming In Game Mode
7.0
10
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
Yes
No
Backlight
Full-Array
No Backlight
HDR Brightness
8.9
7.0
EOTF
Real Scene Highlight
1,162 cd/m²
662 cd/m²
Peak 2% Window
1,170 cd/m²
746 cd/m²
Peak 10% Window
1,464 cd/m²
744 cd/m²
Peak 25% Window
1,033 cd/m²
432 cd/m²
Peak 50% Window
809 cd/m²
285 cd/m²
Peak 100% Window
631 cd/m²
139 cd/m²
Sustained 2% Window
1,124 cd/m²
711 cd/m²
Sustained 10% Window
1,400 cd/m²
712 cd/m²
Sustained 25% Window
1,023 cd/m²
409 cd/m²
Sustained 50% Window
807 cd/m²
270 cd/m²
Sustained 100% Window
628 cd/m²
133 cd/m²
Automatic Brightness Limiting (ABL)
0.040
0.104
HDR Brightness In Game Mode
8.8
7.1
Game Mode EOTF
Real Scene Highlight
1,038 cd/m²
666 cd/m²
Peak 2% Window
565 cd/m²
792 cd/m²
Peak 10% Window
1,425 cd/m²
788 cd/m²
Peak 25% Window
1,276 cd/m²
458 cd/m²
Peak 50% Window
911 cd/m²
319 cd/m²
Peak 100% Window
653 cd/m²
153 cd/m²
Sustained 2% Window
562 cd/m²
751 cd/m²
Sustained 10% Window
1,353 cd/m²
756 cd/m²
Sustained 25% Window
1,247 cd/m²
435 cd/m²
Sustained 50% Window
908 cd/m²
304 cd/m²
Sustained 100% Window
649 cd/m²
147 cd/m²
Automatic Brightness Limiting (ABL)
0.051
0.100
Gray Uniformity
7.1
8.7
50% Uniformity Picture
50% Std. Dev.
3.839%
1.113%
50% DSE
0.208%
0.134%
5% Uniformity Picture
5% Std. Dev.
0.360%
0.279%
5% DSE
0.092%
0.064%
Black Uniformity
7.5
10
Native Black Uniformity Picture
Native Std. Dev.
1.021%
0.155%
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
1.019%
N/A
Viewing Angle
7.3
9.0
Viewing Angle Video
Chroma Graph
Color Washout
38°
48°
Hue Graph
Color Shift
50°
34°
Lightness Graph
Brightness Loss
45°
69°
Black Level Raise
70°
70°
Gamma Shift
22°
70°
Reflections
9.4
9.3
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Glossy
Total Reflections
1.3%
1.5%
Indirect Reflections
0.8%
0.1%
Calculated Direct Reflections
0.5%
1.4%
Pre Calibration
7.4
7.4
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
3.91
3.87
Color dE
1.95
2.21
Gamma
2.22
2.17
Color Temperature
5,920 K
6,899 K
Picture Mode
Movie
Expert (Dark Room)
Color Temp Setting
Warm 2
Warm 2
Gamma Setting
2.2
2.2
Post Calibration
9.5
9.4
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.34
0.14
Color dE
1.08
1.53
Gamma
2.21
2.21
Color Temperature
6,529 K
6,508 K
White Balance Calibration
20 point
22 point
Color Calibration
Yes
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
LED
OLED
Sub-Type
VA
WOLED
Color Gamut
8.1
8.5
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
89.13%
96.27%
DCI P3 uv
93.18%
98.00%
Color Gamut Rec.2020 Picture
Rec 2020 xy
67.24%
70.95%
Rec 2020 uv
75.08%
75.21%
Color Volume
7.8
7.0
P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
85.2%
79.2%
10,000 cd/m² DCI P3 Coverage ITP
51.6%
42.9%
2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
70.2%
60.6%
10,000 cd/m² Rec 2020 Coverage ITP
41.9%
32.8%
Gradient
8.5
8.0
Gradient Picture
Color Depth
10 Bit
10 Bit
Red (Std. Dev.)
0.101
0.096
Green (Std. Dev.)
0.107
0.123
Blue (Std. Dev.)
0.104
0.099
Gray (Std. Dev.)
0.066
0.123
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
10
2.0
Permanent Burn-In Risk
No
Yes
Motion
Response Time
8.5
9.9
Motion Blur Picture
Response Time Chart
80% Response Time
3.5 ms
0.2 ms
100% Response Time
10.6 ms
2.3 ms
Flicker-Free
9.9
10
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
960 Hz
0 Hz
Black Frame Insertion (BFI)
10
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
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
6.9
5.0
Frame Hold Time @ 24 fps
31.1 ms
39.4 ms
Frame Hold Time @ 60 fps
6.1 ms
14.4 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
7.9
Native Refresh Rate
120 Hz
120 Hz
Variable Refresh Rate
Yes
Yes
HDMI Forum VRR
Unknown
Yes
FreeSync
Yes
Yes
G-SYNC Compatible
Yes
Yes (NVIDIA Certified)
4k VRR Maximum
120 Hz
120 Hz
4k VRR Minimum
< 20 Hz
40 Hz
1080p VRR Maximum
120 Hz
120 Hz
1080p VRR Minimum
< 20 Hz
40 Hz
1440p VRR Maximum
120 Hz
120 Hz
1440p VRR Minimum
< 20 Hz
40 Hz
VRR Supported Connectors
HDMI
HDMI
Inputs
Input Lag
9.7
9.5
1080p @ 60Hz
10.5 ms
13.6 ms
1080p @ 60Hz Outside Game Mode
90.2 ms
97.1 ms
1440p @ 60Hz
10.2 ms
13.5 ms
4k @ 60Hz
10.4 ms
13.6 ms
4k @ 60Hz + 10-Bit HDR
10.2 ms
13.6 ms
4k @ 60Hz @ 4:4:4
10.6 ms
13.6 ms
4k @ 60Hz Outside Game Mode
70.2 ms
97.0 ms
4k @ 60Hz With Interpolation
21.6 ms
92.9 ms
8k @ 60Hz
N/A
N/A
1080p @ 120Hz
5.9 ms
7.0 ms
1440p @ 120Hz
6.3 ms
7.0 ms
4k @ 120Hz
5.4 ms
6.8 ms
1080p with Variable Refresh Rate
6.0 ms
5.8 ms
1440p with VRR
6.4 ms
6.1 ms
4k with VRR
6.1 ms
13.8 ms
8k with VRR
N/A
N/A
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 (native support)
Yes (forced resolution required)
1440p @ 120Hz
Yes (native support)
Yes (native support)
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes (native support)
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
Yes
PS5, 4k @ 120Hz
Yes
Yes
PS5, 4k @ 60Hz + HDR
Yes
Yes
PS5, 1440p @ 120Hz
PS5 can't do 1440p
PS5 can't do 1440p
PS5, 1080p @ 120Hz
Yes
Yes
PS5, Variable Refresh Rate
PS5 can't do VRR yet
PS5 can't do VRR yet
Xbox Series X, 4k @ 120Hz + HDR
Yes
Yes
Xbox Series X, 4k @ 120Hz
Yes
Yes
Xbox Series X, 4k @ 60Hz + HDR
Yes
Yes
Xbox Series X, 1440p @ 120Hz
Yes
Yes
Xbox Series X, 1080p @ 120Hz
Yes
Yes
Xbox Series X, Variable Refresh Rate
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)
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
0
Audio Passthrough
ARC
Yes (HDMI 3)
Yes (HDMI 2)
eARC support
Yes
Yes
Dolby Atmos via TrueHD via eARC
Yes
Yes
DTS:X via DTS-HD MA via eARC
No
No
5.1 Dolby Digital via ARC
Yes
Yes
5.1 DTS via ARC
No
No
5.1 Dolby Digital via Optical
Yes
Yes
5.1 DTS via Optical
No
No
Sound Quality
Frequency Response
6.5
7.6
Frequency Response
Low-Frequency Extension
89.80 Hz
67.27 Hz
Std. Dev. @ 70
4.22 dB
2.42 dB
Std. Dev. @ 80
4.44 dB
2.44 dB
Std. Dev. @ Max
6.62 dB
5.52 dB
Max
94.3 dB SPL
93.3 dB SPL
Dynamic Range Compression
7.07 dB
5.19 dB
Distortion
7.3
7.2
Total Harmonic Distortion
Weighted THD @ 80
0.152
0.390
Weighted THD @ Max
0.788
2.325
IMD @ 80
0.85%
0.96%
IMD @ Max
3.72%
2.18%
Smart Features
Interface
8.0
8.5
Smart TV Picture
Smart OS
Tizen
webOS
Version
2020
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
6 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
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
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
63 W
87 W
Power Consumption (Max)
207 W
154 W
Firmware
1113
03.10.41
Check Price
55"
QN55Q90TAFXZA
Searching
Finding store55"
OLED55GXPUA
Searching
Finding store65"
QN65Q90TAFXZA
Searching
Finding store65"
OLED65GXPUA
Searching
Finding store75"
QN75Q90TAFXZA
Searching
Finding store75"
77"
77"
OLED77GXPUA
Searching
Finding store85"
QN85Q90TAFXZA
Searching
Finding store85"
Samsung Q90/Q90T QLED
LG GX OLED
Comments
Samsung Q90/Q90T QLED vs LG GX OLED: Main Discussion
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