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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
Samsung Q800T 8k QLED vs LG CX OLED
Side-by-Side Comparison
Products
Samsung Q800T 8k QLED
LG CX OLED
Tested using Methodology v1.6
Updated Sep 04, 2021 04:49 AM
SEE PRICE
Amazon.comTested using Methodology v1.6
Updated Feb 07, 2025 06:49 PM
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Amazon.com
TypeLED
Sub-TypeVA
Resolution8k
TypeOLED
Sub-TypeWOLED
Resolution4k
Variants
- QN65Q800TAFXZA (65")
- QN75Q800TAFXZA (75")
- QN82Q800TAFXZA (82")
- OLED48CXPUB (48")
- OLED55CXPUA (55")
- OLED65CXPUA (65")
- OLED77CXPUA (77")
Our Verdict
Samsung Q800T 8k QLED
LG CX OLED
The LG CX OLED is much better than the Samsung Q800T 8k QLED. The LG can display perfect blacks and it has very wide viewing angles. It also has a much faster response time, much better out-of-the-box color accuracy, and it handles reflections better. The Samsung is an 8k TV that gets brighter, has a lower input lag, and it doesn't have the burn-in risk associated with OLED TVs.
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48"
48"
OLED48CXPUB
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55"
OLED55CXPUA
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QN65Q800TAFXZA
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OLED65CXPUA
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QN75Q800TAFXZA
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77"
77"
OLED77CXPUA
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QN82Q800TAFXZA
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Main Differences for
Threshold
Mixed Usage
8.0
8.8
Contrast
7.5
10
Local Dimming
7.5
10
Black Uniformity
6.9
10
Gray Uniformity
6.8
8.5
SDR Brightness
8.7
7.0
Full Comparison
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Month 24
50% Gray
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 400x300
VESA 300x200
Borders
Borders Picture
Borders
0.43" (1.1 cm)
0.35" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
1.54" (3.9 cm)
1.93" (4.9 cm)
Build Quality
8.5
9.0
Build quality picture
Picture Quality
Contrast
7.5
10
Checkerboard Picture
Native Contrast
1,667 : 1
Inf : 1
Contrast with local dimming
9,186 : 1
N/A
SDR Brightness
8.7
7.0
Real Scene Peak Brightness
661 cd/m²
321 cd/m²
Peak 2% Window
894 cd/m²
459 cd/m²
Peak 10% Window
1,276 cd/m²
456 cd/m²
Peak 25% Window
1,039 cd/m²
414 cd/m²
Peak 50% Window
674 cd/m²
340 cd/m²
Peak 100% Window
384 cd/m²
176 cd/m²
Sustained 2% Window
858 cd/m²
439 cd/m²
Sustained 10% Window
1,176 cd/m²
435 cd/m²
Sustained 25% Window
993 cd/m²
395 cd/m²
Sustained 50% Window
669 cd/m²
324 cd/m²
Sustained 100% Window
379 cd/m²
146 cd/m²
Automatic Brightness Limiting (ABL)
0.059
0.069
Local Dimming
7.5
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
6.0
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
8.7
7.1
EOTF
Real Scene Highlight
1,175 cd/m²
681 cd/m²
Peak 2% Window
893 cd/m²
760 cd/m²
Peak 10% Window
1,385 cd/m²
817 cd/m²
Peak 25% Window
922 cd/m²
465 cd/m²
Peak 50% Window
592 cd/m²
311 cd/m²
Peak 100% Window
368 cd/m²
152 cd/m²
Sustained 2% Window
852 cd/m²
720 cd/m²
Sustained 10% Window
1,193 cd/m²
776 cd/m²
Sustained 25% Window
874 cd/m²
443 cd/m²
Sustained 50% Window
591 cd/m²
293 cd/m²
Sustained 100% Window
358 cd/m²
146 cd/m²
Automatic Brightness Limiting (ABL)
0.062
0.101
HDR Brightness In Game Mode
6.2
6.7
Game Mode EOTF
Real Scene Highlight
361 cd/m²
563 cd/m²
Peak 2% Window
595 cd/m²
749 cd/m²
Peak 10% Window
988 cd/m²
804 cd/m²
Peak 25% Window
657 cd/m²
457 cd/m²
Peak 50% Window
491 cd/m²
320 cd/m²
Peak 100% Window
396 cd/m²
152 cd/m²
Sustained 2% Window
583 cd/m²
633 cd/m²
Sustained 10% Window
391 cd/m²
768 cd/m²
Sustained 25% Window
648 cd/m²
433 cd/m²
Sustained 50% Window
491 cd/m²
302 cd/m²
Sustained 100% Window
394 cd/m²
147 cd/m²
Automatic Brightness Limiting (ABL)
0.033
0.096
Gray Uniformity
6.8
8.5
50% Uniformity Picture
50% Std. Dev.
2.841%
1.526%
50% DSE
0.237%
0.135%
5% Uniformity Picture
5% Std. Dev.
0.804%
0.401%
5% DSE
0.107%
0.106%
Black Uniformity
6.9
10
Native Black Uniformity Picture
Native Std. Dev.
1.595%
0.416%
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
0.919%
N/A
Viewing Angle
7.4
8.4
Viewing Angle Video
Chroma Graph
Color Washout
46°
48°
Hue Graph
Color Shift
36°
32°
Lightness Graph
Brightness Loss
49°
62°
Black Level Raise
70°
70°
Gamma Shift
26°
57°
Reflections
8.4
9.3
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Semi-gloss
Glossy
Total Reflections
3.3%
1.5%
Indirect Reflections
1.7%
0.4%
Calculated Direct Reflections
1.5%
1.1%
Pre Calibration
5.9
8.2
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
5.24
2.47
Color dE
3.30
1.77
Gamma
2.16
2.19
Color Temperature
5,620 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
0.27
0.16
Color dE
1.21
1.00
Gamma
2.21
2.20
Color Temperature
6,479 K
6,512 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
9.5
10
4k Picture
8k Input
9.5
0.0
8k Picture
Pixels
Pixels Picture
Type
LED
OLED
Sub-Type
VA
WOLED
Color Gamut
8.0
8.6
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
87.16%
97.32%
DCI P3 uv
92.98%
98.71%
Color Gamut Rec.2020 Picture
Rec 2020 xy
65.08%
71.67%
Rec 2020 uv
73.38%
75.65%
Color Volume
7.5
7.1
P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
83.3%
80.6%
10,000 cd/m² DCI P3 Coverage ITP
48.5%
44.2%
2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
66.7%
61.0%
10,000 cd/m² Rec 2020 Coverage ITP
38.0%
33.5%
Gradient
7.9
8.7
Gradient Picture
Color Depth
10 Bit
10 Bit
Red (Std. Dev.)
0.124
0.083
Green (Std. Dev.)
0.130
0.105
Blue (Std. Dev.)
0.094
0.092
Gray (Std. Dev.)
0.098
0.081
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
7.9
9.9
Motion Blur Picture
Response Time Chart
80% Response Time
2.3 ms
0.3 ms
100% Response Time
17.3 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)
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
8.1
4.9
Frame Hold Time @ 24 fps
24.4 ms
39.9 ms
Frame Hold Time @ 60 fps
0.0 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
Unknown
Yes
FreeSync
Yes
Yes
G-SYNC Compatible
No
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 Supported Connectors
HDMI
HDMI
Inputs
Input Lag
9.7
9.5
1080p @ 60Hz
10.2 ms
13.6 ms
1080p @ 60Hz Outside Game Mode
79.0 ms
97.0 ms
1440p @ 60Hz
10.3 ms
13.8 ms
4k @ 60Hz
10.2 ms
13.6 ms
4k @ 60Hz + 10-Bit HDR
10.0 ms
13.5 ms
4k @ 60Hz @ 4:4:4
10.2 ms
13.6 ms
4k @ 60Hz Outside Game Mode
63.0 ms
97.0 ms
4k @ 60Hz With Interpolation
15.5 ms
92.9 ms
8k @ 60Hz
60.3 ms
N/A
1080p @ 120Hz
5.7 ms
6.9 ms
1440p @ 120Hz
5.5 ms
6.9 ms
4k @ 120Hz
N/A
6.7 ms
1080p with Variable Refresh Rate
6.0 ms
5.9 ms
1440p with VRR
6.3 ms
6.2 ms
4k with VRR
13.9 ms
5.9 ms
8k with VRR
N/A
N/A
Supported Resolutions
10
9.6
Resolution
8k
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
No
Yes (native support)
8k @ 30Hz or 24Hz
Yes
No
8k @ 60Hz
Yes
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
5.8
7.6
Frequency Response
Low-Frequency Extension
106.79 Hz
63.50 Hz
Std. Dev. @ 70
4.49 dB
2.12 dB
Std. Dev. @ 80
5.86 dB
2.12 dB
Std. Dev. @ Max
7.42 dB
5.18 dB
Max
90.0 dB SPL
91.2 dB SPL
Dynamic Range Compression
5.32 dB
5.62 dB
Distortion
7.2
7.0
Total Harmonic Distortion
Weighted THD @ 80
0.698
0.085
Weighted THD @ Max
3.716
0.519
IMD @ 80
0.90%
2.00%
IMD @ Max
0.53%
10.89%
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
7 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
140 W
75 W
Power Consumption (Max)
412 W
178 W
Firmware
1115
03.00.45
Check Price
48"
48"
OLED48CXPUB
Searching
Finding store55"
55"
OLED55CXPUA
Searching
Finding store65"
QN65Q800TAFXZA
Searching
Finding store65"
OLED65CXPUA
Searching
Finding store75"
QN75Q800TAFXZA
Searching
Finding store75"
77"
77"
OLED77CXPUA
Searching
Finding store82"
QN82Q800TAFXZA
Searching
Finding store82"
Samsung Q800T 8k QLED
LG CX OLED
Comments
Samsung Q800T 8k QLED vs LG CX OLED: Main Discussion
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