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- Table of Contents
- Top
- Main Differences
- Brightness
- Black Level
- Color
- Processing
- Game Mode Responsiveness
- Motion Handling
- Reflections
- Panel
- Inputs
- Design
- Smart Features
- Sound Quality
- Comments
Samsung QN900D 8k QLED vs LG C4 OLED
Side-by-Side Comparison
Products
Samsung QN900D 8k QLED
LG C4 OLED
Tested using Methodology v2.0.1
Updated May 07, 2025 04:56 PM
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Amazon.comTested using Methodology v2.0.1
Updated May 29, 2025 03:43 PM
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Amazon.com
Resolution8k
Native Refresh Rate60Hz
TypeLED
Sub-TypeVA
Dolby VisionNo
Screen FinishGlossy
Resolution4k
Native Refresh Rate144Hz
TypeOLED
Sub-TypeWOLED
Dolby VisionYes
Screen FinishGlossy
Variants
- QN65QN900DFXZA (65")
- QN75QN900DFXZA (75")
- QN85QN900DFXZA (85")
- OLED42C4PUA (42")
- OLED48C4PUA (48")
- OLED55C4PUA (55")
- OLED65C4PUA (65")
- OLED77C4PUA (77")
- OLED83C4PUA (83")
Our Verdict
Samsung QN900D 8k QLED
LG C4 OLED
In most ways, the LG C4 OLED is better than the Samsung QN900D 8k QLED. While the Samsung is an 8k TV, there is almost no 8k content available, so it doesn't provide it with an advantage over the 4k LG C4. The LG is an OLED, so it has even better contrast than the otherwise fantastic contrast of the Samsung, with no blooming or lighting zone transitions. While the Samsung can get brighter in HDR, the LG is close in real content, although the Samsung does have the edge in SDR brightness. Otherwise, LG is the far better gaming TV due to its faster response time, although Samsung is interesting for those with extremely fast computers because of its 4k @ 240Hz or 8k @ 60Hz support with VRR. Finally, the LG has a far better viewing angle, making it far superior for a wide seating arrangements.
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42"
42"
OLED42C4PUA
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48"
OLED48C4PUA
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55"
OLED55C4PUA
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QN65QN900DFXZA
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OLED65C4PUA
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QN75QN900DFXZA
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77"
77"
OLED77C4PUA
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83"
OLED83C4PUA
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QN85QN900DFXZA
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Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.0
8.3
SDR Brightness
8.5
6.5
HDR Brightness
8.4
7.7
Black Uniformity
7.7
10
Contrast
8.7
10
Full Comparison
Brightness
HDR Brightness
8.4
7.7
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
816 cd/m²
804 cd/m²
Yellow Skyscraper (~700 cd/m²)
563 cd/m²
590 cd/m²
Landscape Pool (~300 cd/m²)
294 cd/m²
265 cd/m²
Peak 2% Window
1,459 cd/m²
950 cd/m²
Peak 10% Window
1,467 cd/m²
932 cd/m²
Peak 25% Window
1,214 cd/m²
614 cd/m²
Peak 50% Window
730 cd/m²
331 cd/m²
Peak 100% Window
460 cd/m²
194 cd/m²
Sustained 2% Window
1,412 cd/m²
917 cd/m²
Sustained 10% Window
1,429 cd/m²
905 cd/m²
Sustained 25% Window
1,192 cd/m²
582 cd/m²
Sustained 50% Window
730 cd/m²
328 cd/m²
Sustained 100% Window
458 cd/m²
192 cd/m²
Automatic Brightness Limiting (ABL)
0.064
0.096
HDR Brightness In Game Mode
7.7
6.7
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
551 cd/m²
798 cd/m²
Yellow Skyscraper (~700 cd/m²)
447 cd/m²
415 cd/m²
Landscape Pool (~300 cd/m²)
280 cd/m²
165 cd/m²
Peak 2% Window
1,418 cd/m²
920 cd/m²
Peak 10% Window
1,428 cd/m²
923 cd/m²
Peak 25% Window
1,178 cd/m²
491 cd/m²
Peak 50% Window
704 cd/m²
296 cd/m²
Peak 100% Window
448 cd/m²
196 cd/m²
Sustained 2% Window
1,379 cd/m²
891 cd/m²
Sustained 10% Window
1,390 cd/m²
894 cd/m²
Sustained 25% Window
1,158 cd/m²
472 cd/m²
Sustained 50% Window
704 cd/m²
294 cd/m²
Sustained 100% Window
446 cd/m²
195 cd/m²
Automatic Brightness Limiting (ABL)
0.065
0.097
SDR Brightness
8.5
6.5
Real Scene Peak Brightness
573 cd/m²
411 cd/m²
Peak 2% Window
1,475 cd/m²
427 cd/m²
Peak 10% Window
1,454 cd/m²
425 cd/m²
Peak 25% Window
1,268 cd/m²
405 cd/m²
Peak 50% Window
758 cd/m²
382 cd/m²
Peak 100% Window
476 cd/m²
259 cd/m²
Sustained 2% Window
1,427 cd/m²
420 cd/m²
Sustained 10% Window
1,413 cd/m²
420 cd/m²
Sustained 25% Window
1,241 cd/m²
401 cd/m²
Sustained 50% Window
757 cd/m²
379 cd/m²
Sustained 100% Window
475 cd/m²
258 cd/m²
Automatic Brightness Limiting (ABL)
0.062
0.030
Black Level
Contrast
8.7
10
Contrast Picture
Contrast
271,400 : 1
Inf : 1
Native Contrast
1,989 : 1
Inf : 1
Lighting Zone Precision
8.0
10
Lighting Zone Precision Picture
Lighting Zone Transitions
7.0
10
Preferred LD Video, Moving Object
Local Dimming
Yes
No
Backlight
Full-Array
No Backlight
Dimming Zone Count Of The Tested TV
1,344
8,294,400
Contrast And Dark Details In Game Mode
8.0
9.5
Lighting Zone Precision Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
Black Uniformity
7.7
10
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
0.198%
N/A
Native Black Uniformity Picture
Native Std. Dev.
1.644%
0.144%
Color
SDR Color Volume
7.2
7.9
DCI-P3 Gamut Rings
CIELAB DCI-P3 Coverage
87.91%
93.69%
BT.2020 Gamut Rings
CIELAB BT.2020 Coverage
61.84%
62.82%
HDR Color Volume
8.3
7.6
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
86.5%
79.2%
2020 Color Volume ITP Picture
10,000 cd/m² BT.2020 Coverage ITP
42.9%
36.2%
White Luminance
1,453 cd/m²
1,008 cd/m²
Red Luminance
322 cd/m²
104 cd/m²
Green Luminance
1,037 cd/m²
333 cd/m²
Blue Luminance
118 cd/m²
38 cd/m²
Cyan Luminance
1,146 cd/m²
365 cd/m²
Magenta Luminance
434 cd/m²
134 cd/m²
Yellow Luminance
1,326 cd/m²
425 cd/m²
SDR Pre-Calibration Color Accuracy
8.1
8.7
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE 2000
3.39
1.61
Color dE 2000
2.26
0.97
Gamma
2.37
2.19
Color Temperature
6,491 K
6,262 K
Picture Mode
Movie
Expert (Dark Space)
Color Temp Setting
Warm 2
Warm 50
Gamma Setting
2.2
2.2
SDR Post-Calibration Color Accuracy
9.5
9.7
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE 2000
0.24
0.26
Color dE 2000
1.35
0.62
Gamma
2.21
2.20
Color Temperature
6,519 K
6,460 K
White Balance Calibration
20 point
22 point
Color Calibration
Yes
Yes
HDR Pre-Calibration Color Accuracy
9.0
8.9
HDR Pre White Balance Picture
HDR Pre Color Picture
White Balance dE ITP
5.60
3.95
Color dE ITP
5.5
5.3
Color Temperature
6,569 K
6,303 K
Picture Mode
FILMMAKER MODE
Cinema
HDR Post-Calibration Color Accuracy
9.2
9.4
HDR Post White Balance Picture
HDR Post Color Picture
White Balance dE ITP
2.60
2.50
Color dE ITP
4.80
5.00
Color Temperature
6,637 K
6,474 K
Processing
PQ EOTF Tracking
9.2
8.8
PQ EOTF Graph
600 Nit Tracking Delta
0.0020
0.0033
1000 Nit Tracking Delta
0.0022
0.0033
4000 Nit Tracking Delta
0.0022
0.0039
Low-Quality Content Smoothing
6.4
8.6
Low-Quality Content Smoothing Picture
Smoothing
6.5
9.0
Detail Preservation
6.0
7.5
Upscaling: Sharpness Processing
8.5
8.0
Sharpness Picture - 480p
HDR Native Gradient
7.3
7.8
HDR Gradient Picture
100% Black To 50% Gray
8.0
6.0
50% Gray To 100% White
8.0
6.0
100% Black To 50% Red
8.0
8.0
50% Red To 100% Red
8.0
10
100% Black To 50% Green
4.0
8.0
50% Green To 100% Green
8.0
6.0
100% Black To 50% Blue
8.0
10
50% Blue To 100% Blue
6.0
8.0
Game Mode Responsiveness
Input Lag
8.4
9.0
1080p @ 60Hz
11.3 ms
10.0 ms
1080p @ 60Hz Outside Game Mode
121.7 ms
89.6 ms
1080p @ 120Hz
8.0 ms
5.3 ms
1080p @ Max Refresh Rate
5.1 ms
4.6 ms
4k @ 60Hz
11.5 ms
9.9 ms
4k @ 60Hz @ 4:4:4
11.6 ms
9.9 ms
4k @ 60Hz Outside Game Mode
88.7 ms
89.5 ms
4k @ 60Hz With Interpolation
28.5 ms
85.5 ms
4k @ 120Hz
8.2 ms
5.3 ms
4k @ Max Refresh Rate
5.1 ms
4.6 ms
8k @ 60Hz
15.3 ms
N/A
Supported Resolutions
9.9
9.4
Resolution
8k
4k
480p @ 59.94Hz (Widescreen)
Yes
Yes
720p @ 59.94Hz
Yes
Yes
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p Maximum Refresh Rate
240 Hz
144 Hz
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes
Yes
4k @ 120Hz @ 4:4:4
Yes
Yes
4k Maximum Refresh Rate
240 Hz
144 Hz
8k @ 30Hz Or 24Hz
Yes
No
8k @ 60Hz
Yes
No
Variable Refresh Rate
9.5
8.5
Native Refresh Rate
60Hz
144Hz
Variable Refresh Rate
Yes
Yes
HDMI Forum VRR
Yes
Yes
FreeSync
Yes
Yes
G-SYNC Compatible
Yes
Yes (NVIDIA Certified)
4k VRR Maximum
240 Hz
144 Hz
4k VRR Minimum
< 20 Hz
< 20 Hz
1080p VRR Maximum
240 Hz
144 Hz
1080p VRR Minimum
< 20 Hz
< 20 Hz
VRR + Local Dimming
Yes
No Local Dimming
CAD In Game Mode @ Max Refresh Rate
4.9
9.6
Pursuit Photo Max Refresh
CAD Heatmap Max Refresh
Transition At Max Refresh
0 to 31
0 to 31
Avg. CAD
341
39
Best 10% CAD
147
7
Worst 10% CAD
673
106
CAD In Game Mode @ 120Hz
6.5
9.7
Pursuit Photo 120Hz
CAD Heatmap 120Hz
Transition At 120Hz
0 to 31
0 to 31
Avg. CAD
245
35
Best 10% CAD
120
6
Worst 10% CAD
377
94
CAD In Game Mode @ 60Hz
5.5
9.6
Pursuit Photo 60Hz
CAD Heatmap 60Hz
Transition 60Hz
0 to 31
0 to 31
Avg. CAD
323
45
Best 10% CAD
131
6
Worst 10% CAD
587
132
PS5 Compatibility
PS5 Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Xbox Series X|S Compatibility
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Motion Handling
Stutter
7.1
4.2
Frame Hold Time @ 24 fps
32.3 ms
41.3 ms
Frame Hold Time @ 60 fps
7.3 ms
16.3 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
Response Time
7.5
9.6
Pursuit Photo 60Hz
Response Time Heatmap 60Hz
Transition At 60Hz
0 to 31
0 to 31
First Response Time
9.4 ms
0.4 ms
Total Response Time
10.1 ms
3.9 ms
Worst 10% Response Time
17.5 ms
10.3 ms
Flicker
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
No
No
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
Reflections
Direct Reflections
6.8
6.5
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
37.1%
42.4%
Screen Finish
Glossy
Glossy
Ambient Black Level Raise
8.1
9.3
Black Level Raise Picture
Bright Room Black Level Raise Graph
Black Luminance @ 0 lx
0.00 cd/m²
0.00 cd/m²
Black Luminance @ 1000 lx
0.91 cd/m²
0.24 cd/m²
Total Reflected Light
7.0
8.8
Bright Room Off Picture
Ring Picture Total Reflection
Total Reflected Light Intensity
20,603% ⋅ pixel
7,717% ⋅ pixel
Diffraction Artifacts
Yes
No
Ambient Color Saturation
7.0
7.2
Bright Room Color Volume Graph
Low-Luminance Colors @ 1000 lx
59.18%
65.68%
Mid-Luminance Colors @ 1000 lx
62.67%
56.69%
High-Luminance Colors @ 1000 lx
52.79%
37.68%
Panel
Viewing Angle
6.9
8.9
Viewing Angle Video
Chroma Graph
Color Washout
24°
48°
Hue Graph
Color Shift
20°
27°
Lightness Graph
Brightness Loss
45°
70°
Black Level Raise
27°
70°
Gamma Shift
48°
70°
Gray Uniformity
6.7
8.1
50% Uniformity Picture
50% Std. Dev.
2.701%
1.063%
50% DSE
0.187%
0.120%
5% Uniformity Picture
5% Std. Dev.
0.741%
0.323%
5% DSE
0.093%
0.102%
Panel Technology
Spectral Power Distribution
Pixels Picture
Type
LED
OLED
Sub-Type
VA
WOLED
Subpixel Layout
BGR
RWBG
Inputs
Input Specifications
Side Inputs Picture
Rear Inputs Picture
HDMI
4 (4x HDMI 2.1)
4 (4x HDMI 2.1)
HDMI 2.1 Rated Speed
40 Gbps
48 Gbps
ATSC Tuner
3.0 (NEXTGEN TV)
1.0
USB Ports
4
3
USB 3.0
No
No
Audio Out 3.5mm
0
0
Wi-Fi
Yes (2.4 GHz, 5 GHz, 6 GHz)
Yes (2.4 GHz, 5 GHz)
Ethernet Speed
100 Mbps
100 Mbps
Composite In
0
0
Digital Optical Audio Out
1
1
Audio Passthrough
ARC/eARC Port
eARC
eARC
eARC: Dolby Atmos Over Dolby Digital Plus
Yes
Yes
eARC: Dolby Digital Plus 7.1
Yes
Yes
eARC: LPCM 7.1 Over Dolby MAT
Yes
Yes
eARC: Dolby TrueHD 7.1
Yes
Yes
eARC: DTS:X Over DTS-HD MA
No
Yes
eARC: DTS-HD Master Audio 7.1
No
Yes
eARC: LPCM Channels (Bitstream)
7.1
7.1
ARC: Dolby Digital 5.1
Yes
Yes
ARC: DTS 5.1
No
Yes
Optical: Dolby Digital 5.1
Yes
Yes
Optical: DTS 5.1
No
Yes
HDR Format Support
HDR10
Yes
Yes
HDR10+
Yes
No
Dolby Vision
No
Yes
HLG
Yes
Yes
Design
Style
Design Picture
Curved
No
No
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 400x300
VESA 300x200
Borders
Borders Picture
Borders
0.08" (0.2 cm)
0.24" (0.6 cm)
Thickness
Thickness Picture
Max Thickness
0.59" (1.5 cm)
1.77" (4.5 cm)
Build Quality
8.5
9.0
Build quality picture
Smart Features
Interface
Smart TV Picture
Smart OS
Tizen
webOS
Version
2024
24
Ad-Free
0.0
0.0
Ads Picture
Ads
Yes
Yes
Opt-out
No
No
Suggested Content in Home
Yes
No
Opt-out of Suggested Content
No
No
Remote
Remote Picture
Voice Control
Yes
Yes
TV Controls
Controls Picture
Mute Switch
Yes
Yes
In The Box
In The Box Picture
Misc
Power Consumption
129 W
78 W
Power Consumption (Max)
320 W
215 W
Firmware
1120
03.10.31
Sound Quality
Frequency Response
6.9
6.7
Frequency Response
Low-Frequency Extension
134.54 Hz
80.00 Hz
Std. Dev. @ 70
2.51 dB
1.18 dB
Std. Dev. @ 80
2.06 dB
1.68 dB
Std. Dev. @ Max
3.14 dB
5.56 dB
Max
89.1 dB SPL
84.2 dB SPL
Dynamic Range Compression
4.63 dB
5.13 dB
Digital Room Correction
Yes
Yes
Check Price
42"
42"
OLED42C4PUA
Searching
Finding store48"
48"
OLED48C4PUA
Searching
Finding store55"
55"
OLED55C4PUA
Searching
Finding store65"
QN65QN900DFXZA
Searching
Finding store65"
OLED65C4PUA
Searching
Finding store75"
QN75QN900DFXZA
Searching
Finding store75"
77"
77"
OLED77C4PUA
Searching
Finding store83"
83"
OLED83C4PUA
Searching
Finding store85"
QN85QN900DFXZA
Searching
Finding store85"
Samsung QN900D 8k QLED
LG C4 OLED
Comments
LG C4 OLED vs Samsung QN900D 8k QLED: Main Discussion
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