TV
Products
In The Lab
Forums
Newsletters
 Insider
Notice: Your browser is not supported or outdated so some features of the site might not be available.
Best
TVs 65-Inch Brands 55-Inch 70-75 Inch Gaming OLED Smart 48-49-50 Inch Samsung 80-85 Inch Outdoor Hisense TCL Roku PS5/PS5 Pro 40-42-43 Inch Budget 32-Inch 4k
Tools
Compare Size to Distance Table Review List Review Index Graph Recommendation Custom Ratings
Popular
Samsung S90D OLED LG G5 OLED LG C4 OLED Hisense U8N Hisense U7N LG B4 OLED Samsung S95F OLED LG C5 OLED LG G4 OLED TCL QM7/QM751G QLED Samsung QN90D Sony A95L OLED Sony X90L/X90CL TCL QM8/QM851G QLED Sony BRAVIA 9 QLED Hisense U6/U6N TCL QM7K Samsung QN90F Samsung S95D OLED Sony BRAVIA 7
485
TVs bought and tested
Supported by you via insider access, and when you purchase through links on our site, we may earn an affiliate commission.
Driven by data, run by a passionate team of engineers, testers, technical writers, developers, and more.
We are hiring!
  1. Home
  2. TV
  3. Compare
  1. Table of Contents
  2. Top
  3. Main Differences
  4. Brightness
    1. HDR Brightness
    2. HDR Brightness In Game Mode
    3. SDR Brightness
  5. Black Level
    1. Contrast
    2. Lighting Zone Precision
    3. Lighting Zone Transitions
    4. Contrast And Dark Details In Game Mode
    5. Black Uniformity
  6. Color
    1. SDR Color Volume
    2. HDR Color Volume
    3. SDR Pre-Calibration Color Accuracy
    4. SDR Post-Calibration Color Accuracy
    5. HDR Pre-Calibration Color Accuracy
    6. HDR Post-Calibration Color Accuracy
  7. Processing
    1. PQ EOTF Tracking
    2. Low-Quality Content Smoothing
    3. Upscaling: Sharpness Processing
    4. HDR Native Gradient
  8. Game Mode Responsiveness
    1. Input Lag
    2. Supported Resolutions
    3. Variable Refresh Rate
    4. CAD In Game Mode @ Max Refresh Rate
    5. CAD In Game Mode @ 120Hz
    6. CAD In Game Mode @ 60Hz
    7. PS5 Compatibility
    8. Xbox Series X|S Compatibility
  9. Motion Handling
    1. Stutter
    2. 24p Judder
    3. Response Time
    4. Flicker
    5. Black Frame Insertion (BFI)
    6. Motion Interpolation
  10. Reflections
    1. Direct Reflections
    2. Ambient Black Level Raise
    3. Total Reflected Light
    4. Ambient Color Saturation
  11. Panel
    1. Viewing Angle
    2. Gray Uniformity
    3. Panel Technology
  12. Inputs
    1. Input Specifications
    2. Input Lag
    3. Audio Passthrough
    4. HDR Format Support
    5. Supported Resolutions
    6. Input Photos
    7. Total Inputs
  13. Market Context
    1. Market Context
  14. Design
    1. Style
    2. Stand
    3. Back
    4. Borders
    5. Thickness
    6. Build Quality
  15. Smart Features
    1. Interface
    2. Ad-Free
    3. Apps and Features
    4. Remote
    5. TV Controls
    6. In The Box
    7. Misc
  16. Sound Quality
    1. Frequency Response
    2. Distortion
  17. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Gray Uniformity
    6. Viewing Angle
    7. Black Uniformity
    8. Reflections
    9. Pre Calibration
    10. Post Calibration
    11. 480p Input
    12. 720p Input
    13. 1080p Input
    14. 4k Input
    15. 8k Input
    16. Pixels
    17. Color Gamut
    18. Color Volume
    19. Gradient
    20. Temporary Image Retention
    21. Permanent Burn-In Risk
  18. Motion
    1. Response Time
    2. Flicker-Free
    3. Black Frame Insertion (BFI)
    4. Motion Interpolation
    5. Stutter
    6. 24p Judder
    7. Variable Refresh Rate
  19. Comments

Samsung Q90/Q90R QLED vs LG C4 OLED

Side-by-Side Comparison

Products

Samsung Q90/Q90R QLED
LG C4 OLED

Tested using Methodology v1.5

Updated Sep 04, 2021 04:35 PM

SEE PRICE
Amazon.com

Tested using Methodology v2.0.1

Updated May 29, 2025 03:43 PM

SEE PRICE
BestBuy.com
Samsung Q90/Q90R QLED Picture
LG C4 OLED Picture
Resolution4k
Native Refresh Rate
120 Hz
TypeLED
Sub-Type
VA
Dolby Vision
No
Screen Finish
Glossy
Resolution4k
Native Refresh Rate
144Hz
TypeOLED
Sub-Type
WOLED
Dolby Vision
Yes
Screen Finish
Glossy
  1. Recommended in 18 articles:
  2. Best TVs
  3. 65-Inch
  4. 55-Inch
  5. 70-75 Inch
  6. Gaming
  7. OLED
  8. Smart
  9. 48-49-50 Inch
  10. PS5/PS5 Pro
  11. 40-42-43 Inch
  12. 4k
  13. LG
  14. Xbox Series X
  15. Small
  16. 120Hz
  17. Movies
  18. Under $1,500
  19. Under $2,000

Variants

  • QN65Q90RAFXZA (65")
  • QN75Q90RAFXZA (75")
  • QN82Q90RAFXZA (82")
  • OLED42C4PUA (42")
  • OLED48C4PUA (48")
  • OLED55C4PUA (55")
  • OLED65C4PUA (65")
  • OLED77C4PUA (77")
  • OLED83C4PUA (83")

Review

See Samsung Q90/Q90R QLED Review
See LG C4 OLED Review
0 
225 

Our Verdict

Samsung Q90/Q90R QLED

LG C4 OLED

Full comparison details regarding individual product score sets can be found in the section below

Check Price

42"
 
42"
OLED42C4PUA
Searching
Finding store
48"
 
48"
OLED48C4PUA
Searching
Finding store
55"
 
55"
OLED55C4PUA
Searching
Finding store
65"
QN65Q90RAFXZA
Searching
Finding store
65"
OLED65C4PUA
Searching
Finding store
75"
QN75Q90RAFXZA
Searching
Finding store
75"
 
77"
 
77"
OLED77C4PUA
Searching
Finding store
82"
QN82Q90RAFXZA
Searching
Finding store
82"
 
83"
 
83"
OLED83C4PUA
Searching
Finding store
Read more

Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 

8.5
8.3

HDR Peak Brightness 
 

9.0
7.7

SDR Peak Brightness 
 

9.0
6.5

Reflections 
 

9.5
6.5

Contrast 
 

8.4
10

Viewing Angle 
 

6.9
8.9

Full Comparison

Brightness

HDR Brightness 
 

9.0
7.7

HDR Hallway Photo  

LG C4 OLED HDR Hallway Photo

HDR Cityscape Photo  

LG C4 OLED HDR Cityscape Photo

HDR Landscape Photo  

LG C4 OLED HDR Landscape Photo

Hallway Lights (~1950 cd/m²) 
 

804 cd/m²

Yellow Skyscraper (~700 cd/m²) 
 

590 cd/m²

Landscape Pool (~300 cd/m²) 
 

265 cd/m²

Peak 2% Window 
 

1,145 cd/m²
950 cd/m²

Peak 10% Window 
 

1,487 cd/m²
932 cd/m²

Peak 25% Window 
 

1,275 cd/m²
614 cd/m²

Peak 50% Window 
 

816 cd/m²
331 cd/m²

Peak 100% Window 
 

536 cd/m²
194 cd/m²

Sustained 2% Window 
 

1,082 cd/m²
917 cd/m²

Sustained 10% Window 
 

1,410 cd/m²
905 cd/m²

Sustained 25% Window 
 

1,235 cd/m²
582 cd/m²

Sustained 50% Window 
 

814 cd/m²
328 cd/m²

Sustained 100% Window 
 

532 cd/m²
192 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.050
0.096
Show Text 

HDR Brightness In Game Mode 
 

6.7

HDR Hallway Photo  

LG C4 OLED HDR Hallway Photo

HDR Cityscape Photo  

LG C4 OLED HDR Cityscape Photo

HDR Landscape Photo  

LG C4 OLED HDR Landscape Photo

Hallway Lights (~1950 cd/m²) 
 

798 cd/m²

Yellow Skyscraper (~700 cd/m²) 
 

415 cd/m²

Landscape Pool (~300 cd/m²) 
 

165 cd/m²

Peak 2% Window 
 

920 cd/m²

Peak 10% Window 
 

923 cd/m²

Peak 25% Window 
 

491 cd/m²

Peak 50% Window 
 

296 cd/m²

Peak 100% Window 
 

196 cd/m²

Sustained 2% Window 
 

891 cd/m²

Sustained 10% Window 
 

894 cd/m²

Sustained 25% Window 
 

472 cd/m²

Sustained 50% Window 
 

294 cd/m²

Sustained 100% Window 
 

195 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.097
Show Text 

SDR Brightness 
 

9.0
6.5

Real Scene Peak Brightness 
 

831 cd/m²
411 cd/m²

Peak 2% Window 
 

1,297 cd/m²
427 cd/m²

Peak 10% Window 
 

1,363 cd/m²
425 cd/m²

Peak 25% Window 
 

1,237 cd/m²
405 cd/m²

Peak 50% Window 
 

774 cd/m²
382 cd/m²

Peak 100% Window 
 

505 cd/m²
259 cd/m²

Sustained 2% Window 
 

1,213 cd/m²
420 cd/m²

Sustained 10% Window 
 

1,284 cd/m²
420 cd/m²

Sustained 25% Window 
 

1,163 cd/m²
401 cd/m²

Sustained 50% Window 
 

773 cd/m²
379 cd/m²

Sustained 100% Window 
 

502 cd/m²
258 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.052
0.030
Show Text 
Black Level

Contrast 
 

8.4
10

Contrast Picture  

Samsung Q90/Q90R QLED Contrast Picture
LG C4 OLED Contrast Picture

Contrast 
 

11,200 : 1
Inf : 1

Native Contrast 
 

3,249 : 1
Inf : 1
Show Text 

Lighting Zone Precision 
 

10

Lighting Zone Precision Picture  

LG C4 OLED Lighting Zone Precision Picture
Show Text 

Lighting Zone Transitions 
 

10

Preferred LD Video, Moving Object  

Local Dimming 
 

Yes
No

Backlight 
 

Full-Array
No Backlight

Dimming Zone Count Of The Tested TV 
 

8,294,400
Show Text 

Contrast And Dark Details In Game Mode 
 

9.5

Lighting Zone Precision Photo In Game Mode  

LG C4 OLED Lighting Zone Precision Photo In Game Mode

Preferred LD Video, Moving Object In Game Mode  

Game Transitions With VRR And Preferred LD  

Show Text 

Black Uniformity 
 

8.9
10

Black Uniformity Picture With Preferred Local Dimming  

Samsung Q90/Q90R QLED Black Uniformity Picture With Preferred Local Dimming
LG C4 OLED Black Uniformity Picture With Preferred Local Dimming

Std. Dev. 
 

0.452%
N/A

Native Black Uniformity Picture  

Samsung Q90/Q90R QLED Native Black Uniformity Picture
LG C4 OLED Native Black Uniformity Picture

Native Std. Dev. 
 

0.745%
0.144%
Show Text 
Color

SDR Color Volume 
 

7.9

DCI-P3 Gamut Rings  

LG C4 OLED DCI-P3 Gamut Rings

CIELAB DCI-P3 Coverage 
 

93.69%

BT.2020 Gamut Rings  

LG C4 OLED BT.2020 Gamut Rings

CIELAB BT.2020 Coverage 
 

62.82%
Show Text 

HDR Color Volume 
 

7.9
7.6

P3 Color Volume ITP Picture  

Samsung Q90/Q90R QLED P3 Color Volume ITP Picture
LG C4 OLED P3 Color Volume ITP Picture

1,000 cd/m² DCI P3 Coverage ITP 
 

53.8%
79.2%

2020 Color Volume ITP Picture  

Samsung Q90/Q90R QLED 2020 Color Volume ITP Picture
LG C4 OLED 2020 Color Volume ITP Picture

10,000 cd/m² BT.2020 Coverage ITP 
 

43.6%
36.2%

White Luminance 
 

1,008 cd/m²

Red Luminance 
 

104 cd/m²

Green Luminance 
 

333 cd/m²

Blue Luminance 
 

38 cd/m²

Cyan Luminance 
 

365 cd/m²

Magenta Luminance 
 

134 cd/m²

Yellow Luminance 
 

425 cd/m²
Show Text 

SDR Pre-Calibration Color Accuracy 
 

7.2
8.7

Pre White Balance Picture  

Samsung Q90/Q90R QLED Pre White Balance Picture
LG C4 OLED Pre White Balance Picture

Pre Gamma Curve Picture  

Samsung Q90/Q90R QLED Pre Gamma Curve Picture
LG C4 OLED Pre Gamma Curve Picture

Pre Color Picture  

Samsung Q90/Q90R QLED Pre Color Picture
LG C4 OLED Pre Color Picture

White Balance dE 2000 
 

3.79
1.61

Color dE 2000 
 

2.58
0.97

Gamma 
 

2.21
2.19

Color Temperature 
 

5,859 K
6,262 K

Picture Mode 
 

Movie
Expert (Dark Space)

Color Temp Setting 
 

Warm 2
Warm 50

Gamma Setting 
 

2.2
2.2
Show Text 

SDR Post-Calibration Color Accuracy 
 

9.5
9.7

Post White Balance Picture  

Samsung Q90/Q90R QLED Post White Balance Picture
LG C4 OLED Post White Balance Picture

Post Gamma Curve Picture  

Samsung Q90/Q90R QLED Post Gamma Curve Picture
LG C4 OLED Post Gamma Curve Picture

Post Color Picture  

Samsung Q90/Q90R QLED Post Color Picture
LG C4 OLED Post Color Picture

White Balance dE 2000 
 

0.30
0.26

Color dE 2000 
 

1.09
0.62

Gamma 
 

2.22
2.20

Color Temperature 
 

6,473 K
6,460 K

White Balance Calibration 
 

20 point
22 point

Color Calibration 
 

Yes
Yes
Show Text 

HDR Pre-Calibration Color Accuracy 
 

8.9

HDR Pre White Balance Picture  

LG C4 OLED HDR Pre White Balance Picture

HDR Pre Color Picture  

LG C4 OLED HDR Pre Color Picture

White Balance dE ITP 
 

3.95

Color dE ITP 
 

5.3

Color Temperature 
 

6,303 K

Picture Mode 
 

Cinema
Show Text 

HDR Post-Calibration Color Accuracy 
 

9.4

HDR Post White Balance Picture  

LG C4 OLED HDR Post White Balance Picture

HDR Post Color Picture  

LG C4 OLED HDR Post Color Picture

White Balance dE ITP 
 

2.50

Color dE ITP 
 

5.00

Color Temperature 
 

6,474 K
Show Text 
Processing

PQ EOTF Tracking 
 

8.8

PQ EOTF Graph  

See details on graph tool

600 Nit Tracking Delta 
 

0.0033

1000 Nit Tracking Delta 
 

0.0033

4000 Nit Tracking Delta 
 

0.0039
Show Text 

Low-Quality Content Smoothing 
 

8.6

Low-Quality Content Smoothing Picture  

LG C4 OLED Low-Quality Content Smoothing Picture

Smoothing 
 

9.0

Detail Preservation 
 

7.5
Show Text 

Upscaling: Sharpness Processing 
 

8.0
8.0

Sharpness Picture - 480p  

Samsung Q90/Q90R QLED Sharpness Picture - 480p
LG C4 OLED Sharpness Picture - 480p
Show Text 

HDR Native Gradient 
 

8.1
7.8

HDR Gradient Picture  

Samsung Q90/Q90R QLED HDR Gradient Picture
LG C4 OLED HDR Gradient Picture

100% Black To 50% Gray  

6.0

50% Gray To 100% White  

6.0

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  

8.0
Show Text 
Game Mode Responsiveness

Input Lag 
 

8.7
9.0

1080p @ 60Hz 
 

14.7 ms
10.0 ms

1080p @ 60Hz Outside Game Mode 
 

77.2 ms
89.6 ms

1080p @ 120Hz 
 

6.0 ms
5.3 ms

1080p @ Max Refresh Rate 
 

4.6 ms

4k @ 60Hz 
 

14.7 ms
9.9 ms

4k @ 60Hz @ 4:4:4 
 

14.5 ms
9.9 ms

4k @ 60Hz Outside Game Mode 
 

57.1 ms
89.5 ms

4k @ 60Hz With Interpolation 
 

21.2 ms
85.5 ms

4k @ 120Hz 
 

7.1 ms
5.3 ms

4k @ Max Refresh Rate 
 

4.6 ms

8k @ 60Hz 
 

N/A
N/A
Show Text 

Supported Resolutions 
 

9.6
9.4

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 Maximum Refresh Rate 
 

144 Hz

4k @ 60Hz 
 

Yes
Yes

4k @ 60Hz @ 4:4:4 
 

Yes
Yes

4k @ 120Hz 
 

Yes (native support)
Yes

4k @ 120Hz @ 4:4:4 
 

Yes

4k Maximum Refresh Rate 
 

144 Hz

8k @ 30Hz Or 24Hz 
 

No
No

8k @ 60Hz 
 

No
No
Show Text 

Variable Refresh Rate 
 

9.4
8.5

Native Refresh Rate 
 

120 Hz
144Hz

Variable Refresh Rate 
 

Yes
Yes

HDMI Forum VRR 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC Compatible 
 

No
Yes (NVIDIA Certified)

4k VRR Maximum 
 

144 Hz

4k VRR Minimum 
 

< 20 Hz

1080p VRR Maximum 
 

120 Hz
144 Hz

1080p VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR + Local Dimming  

No Local Dimming
Show Text 

CAD In Game Mode @ Max Refresh Rate 
 

9.6

Pursuit Photo Max Refresh  

LG C4 OLED Pursuit Photo Max Refresh

CAD Heatmap Max Refresh 
 

LG C4 OLED CAD Heatmap Max Refresh

Transition At Max Refresh 
 

transition-game-max-0-31
0 to 31

Avg. CAD 
 

39

Best 10% CAD 
 

7

Worst 10% CAD 
 

106
Show Text 

CAD In Game Mode @ 120Hz 
 

9.7

Pursuit Photo 120Hz  

LG C4 OLED Pursuit Photo 120Hz

CAD Heatmap 120Hz  

LG C4 OLED CAD Heatmap 120Hz

Transition At 120Hz 
 

transition-game-120-0-31
0 to 31

Avg. CAD 
 

35

Best 10% CAD 
 

6

Worst 10% CAD 
 

94
Show Text 

CAD In Game Mode @ 60Hz 
 

9.6

Pursuit Photo 60Hz  

LG C4 OLED Pursuit Photo 60Hz

CAD Heatmap 60Hz 
 

LG C4 OLED CAD Heatmap 60Hz

Transition 60Hz 
 

transition-game-60-0-31
0 to 31

Avg. CAD 
 

45

Best 10% CAD 
 

6

Worst 10% CAD 
 

132
Show Text 

PS5 Compatibility 
 

PS5 Screenshot  

LG C4 OLED PS5 Screenshot

Auto Low Latency Mode (ALLM) 
 

Yes
Yes

4k @ 120Hz 
 

Yes

1440p @ 120Hz 
 

Yes

1080p @ 120Hz 
 

Yes

HDR 
 

Yes

VRR 
 

Yes
Show Text 

Xbox Series X|S Compatibility 
 

Xbox Series X Screenshot  

LG C4 OLED Xbox Series X Screenshot

Auto Low Latency Mode (ALLM) 
 

Yes

4k @ 120Hz 
 

Yes

1440p @ 120Hz 
 

Yes

1080p @ 120Hz 
 

Yes

HDR 
 

Yes

VRR 
 

Yes
Show Text 
Motion Handling

Stutter 
 

6.7
4.2

Frame Hold Time @ 24 fps 
 

32.1 ms
41.3 ms

Frame Hold Time @ 60 fps 
 

7.1 ms
16.3 ms
Show Text 

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
Show Text 

Response Time 
 

8.5
9.6

Pursuit Photo 60Hz  

Samsung Q90/Q90R QLED Pursuit Photo 60Hz
LG C4 OLED Pursuit Photo 60Hz

Response Time Heatmap 60Hz 
 

LG C4 OLED Response Time Heatmap 60Hz

Transition At 60Hz 
 

transition-60-0-31
0 to 31

First Response Time 
 

0.4 ms

Total Response Time 
 

3.9 ms

Worst 10% Response Time 
 

10.3 ms
Show Text 

Flicker 
 

Backlight chart 
 

Samsung Q90/Q90R QLED Backlight chart
LG C4 OLED Backlight chart

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

960 Hz
0 Hz
Show Text 

Black Frame Insertion (BFI) 
 

BFI Picture  

Samsung Q90/Q90R QLED BFI Picture
LG C4 OLED BFI Picture

BFI Frequency Picture  

Samsung Q90/Q90R QLED BFI Frequency Picture
LG C4 OLED 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
No

Min Flicker For 60 fps In Game Mode 
 

60 Hz
60 Hz
Show Text 

Motion Interpolation 
 

Motion Interpolation (30 fps) Picture  

Samsung Q90/Q90R QLED Motion Interpolation (30 fps) Picture
LG C4 OLED Motion Interpolation (30 fps) Picture

Motion Interpolation (30 fps) 
 

Yes
Yes

Motion Interpolation (60 fps) Picture  

Samsung Q90/Q90R QLED Motion Interpolation (60 fps) Picture
LG C4 OLED Motion Interpolation (60 fps) Picture

Motion Interpolation (60 fps) 
 

Yes
Yes
Show Text 
Reflections

Direct Reflections 
 

9.5
6.5

Ring Light Picture  

LG C4 OLED Ring Light Picture

Direct Reflections Graph  

See details on graph tool

Peak Direct Reflection Intensity 
 

42.4%

Screen Finish 
 

Glossy
Glossy
Show Text 

Ambient Black Level Raise 
 

9.3

Black Level Raise Picture  

LG C4 OLED Black Level Raise Picture

Bright Room Black Level Raise Graph  

See details on graph tool

Black Luminance @ 0 lx 
 

0.00 cd/m²

Black Luminance @ 1000 lx 
 

0.24 cd/m²
Show Text 

Total Reflected Light 
 

8.8

Bright Room Off Picture  

Samsung Q90/Q90R QLED Bright Room Off Picture
LG C4 OLED Bright Room Off Picture

Ring Picture Total Reflection  

LG C4 OLED Ring Picture Total Reflection

Total Reflected Light Intensity 
 

7,717% ⋅ pixel

Diffraction Artifacts 
 

No
Show Text 

Ambient Color Saturation 
 

7.2

Bright Room Color Volume Graph  

See details on graph tool

Low-Luminance Colors @ 1000 lx 
 

65.68%

Mid-Luminance Colors @ 1000 lx 
 

56.69%

High-Luminance Colors @ 1000 lx 
 

37.68%
Show Text 
Panel

Viewing Angle 
 

6.9
8.9

Viewing Angle Video  

Chroma Graph  

Samsung Q90/Q90R QLED Chroma Graph
LG C4 OLED Chroma Graph

Color Washout 
 

32°
48°

Hue Graph  

Samsung Q90/Q90R QLED Hue Graph
LG C4 OLED Hue Graph

Color Shift 
 

37°
27°

Lightness Graph  

Samsung Q90/Q90R QLED Lightness Graph
LG C4 OLED Lightness Graph

Brightness Loss 
 

42°
70°

Black Level Raise 
 

70°
70°

Gamma Shift 
 

23°
70°
Show Text 

Gray Uniformity 
 

7.3
8.1

50% Uniformity Picture  

Samsung Q90/Q90R QLED 50% Uniformity Picture
LG C4 OLED 50% Uniformity Picture

50% Std. Dev. 
 

4.127%
1.063%

50% DSE 
 

0.187%
0.120%

5% Uniformity Picture  

Samsung Q90/Q90R QLED 5% Uniformity Picture
LG C4 OLED 5% Uniformity Picture

5% Std. Dev. 
 

0.545%
0.323%

5% DSE 
 

0.103%
0.102%
Show Text 

Panel Technology 
 

Spectral Power Distribution  

LG C4 OLED Spectral Power Distribution

Pixels Picture  

Samsung Q90/Q90R QLED Pixels Picture
LG C4 OLED Pixels Picture

Type  

LED
OLED

Sub-Type 
 

VA
WOLED

Subpixel Layout 
 

RWBG
Show Text 
Inputs

Input Specifications  

Side Inputs Picture  

Samsung Q90/Q90R QLED Side Inputs Picture
LG C4 OLED Side Inputs Picture

Rear Inputs Picture  

Samsung Q90/Q90R QLED Rear Inputs Picture
LG C4 OLED Rear Inputs Picture

HDMI  

4
4 (4x HDMI 2.1)

HDMI 2.1 Rated Speed 
 

Unknown
48 Gbps

ATSC Tuner 
 

1.0

USB Ports  

3
3

HDR10 
 

Yes
Yes

USB 3.0 
 

No
No

Audio Out 3.5mm  

0
0

HDR10+ 
 

Yes
No

Wi-Fi  

Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)

Ethernet Speed  

1
100 Mbps

Composite In  

0
0

Dolby Vision 
 

No
Yes

Digital Optical Audio Out  

1
1

HLG 
 

Yes
Yes

3D 
 

No

HDMI 2.0 Full Bandwidth 
 

Yes (HDMI 1,2,3,4)

CEC  

Yes

HDCP 2.2  

Yes (HDMI 1,2,3,4)

Variable Analog Audio Out  

No
Show Text 

Input Lag 
 

8.7
9.0

1080p @ 60 Hz 
 

14.7 ms
10.0 ms

1080p @ 60 Hz Outside Game Mode 
 

77.2 ms
89.6 ms

1440p @ 60 Hz 
 

14.6 ms

4k @ 60 Hz 
 

14.7 ms
9.9 ms

4k @ 60 Hz + 10 bit HDR 
 

14.6 ms

4k @ 60 Hz @ 4:4:4 
 

14.5 ms
9.9 ms

4k @ 60 Hz Outside Game Mode 
 

57.1 ms
89.5 ms

4k @ 60 Hz With Interpolation 
 

21.2 ms
85.5 ms

8k @ 60 Hz 
 

N/A
N/A

1080p @ 120 Hz 
 

6.0 ms
5.3 ms

1440p @ 120 Hz 
 

6.1 ms

4k @ 120 Hz 
 

7.1 ms
5.3 ms

1080p with Variable Refresh Rate 
 

5.9 ms

1440p with VRR 
 

6.1 ms

4k with VRR 
 

14.1 ms

8k with VRR 
 

N/A

Auto Low Latency Mode (ALLM) 
 

Yes
Yes
Show Text 

Audio Passthrough 
 

ARC/eARC Port 
 

No
eARC

eARC: Dolby Atmos Over Dolby Digital Plus 
 

No
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 3)

eARC: DTS:X Over DTS-HD MA 
 

No
Yes

eARC: DTS-HD Master Audio 7.1 
 

Yes

eARC: LPCM Channels (Bitstream) 
 

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
Show Text 

HDR Format Support  

HDR10 
 

Yes
Yes

HDR10+ 
 

Yes
No

Dolby Vision 
 

No
Yes

HLG 
 

Yes
Yes

Supported Resolutions 
 

9.6
9.4

Resolution  

4k
4k

1080p @ 60 Hz @ 4:4:4 
 

Yes
Yes

1080p @ 120 Hz 
 

Yes (native support)
Yes

1440p @ 60 Hz 
 

Yes (native support)

1440p @ 120 Hz 
 

Yes (native support)

4k @ 60 Hz 
 

Yes
Yes

4k @ 60 Hz @ 4:4:4 
 

Yes
Yes

4k @ 120 Hz 
 

Yes (native support)
Yes

8k @ 30 Hz or 24 Hz 
 

No
No

8k @ 60 Hz 
 

No
No
Show Text 

Input Photos  

Side Inputs Picture  

Samsung Q90/Q90R QLED Side Inputs Picture
LG C4 OLED Side Inputs Picture

Rear Inputs Picture  

Samsung Q90/Q90R QLED Rear Inputs Picture
LG C4 OLED Rear Inputs Picture

Total Inputs  

HDMI  

4
4 (4x HDMI 2.1)

USB  

3
3

Digital Optical Audio Out  

1
1

Analog Audio Out 3.5mm  

0
0

Analog Audio Out RCA  

0

Component In  

0

Composite In  

0
0

Tuner (Cable/Ant)  

1

Ethernet  

1
100 Mbps

DisplayPort  

0

IR In  

0

SD/SDHC  

0
Market Context

Market Context 
 

Show Text 
Design

Style  

Design Picture  

Samsung Q90/Q90R QLED Design Picture
LG C4 OLED Design Picture

Curved  

No
No
Show Text 

Stand  

Stand Picture  

Samsung Q90/Q90R QLED Stand Picture
LG C4 OLED Stand Picture
Show Text 

Back  

Back Picture  

Samsung Q90/Q90R QLED Back Picture
LG C4 OLED Back Picture

Wall Mount  

VESA 400x400
VESA 300x200
Show Text 

Borders  

Borders Picture  

Samsung Q90/Q90R QLED Borders Picture
LG C4 OLED Borders Picture

Borders  

0.43" (1.1 cm)
0.24" (0.6 cm)
Show Text 

Thickness  

Thickness Picture  

Samsung Q90/Q90R QLED Thickness Picture
LG C4 OLED Thickness Picture

Max Thickness  

1.54" (3.9 cm)
1.77" (4.5 cm)
Show Text 

Build Quality 
 

9.5
9.0

Build quality picture  

Samsung Q90/Q90R QLED Build quality picture
LG C4 OLED Build quality picture
Show Text 
Smart Features

Interface 
 

Smart TV Picture  

Samsung Q90/Q90R QLED Smart TV Picture
LG C4 OLED Smart TV Picture

Smart OS  

Tizen
webOS

Version  

2019
24

Ease of Use 
 

Easy

Smoothness 
 

Very Smooth

Time Taken to Select YouTube 
 

2 s

Time Taken to Change Backlight 
 

7 s

Advanced Options 
 

Many
Show Text 

Ad-Free 
 

0.0
0.0

Ads Picture  

Samsung Q90/Q90R QLED Ads Picture
LG C4 OLED Ads Picture

Ads 
 

Yes
Yes

Opt-out 
 

No
No

Suggested Content in Home 
 

Yes
No

Opt-out of Suggested Content 
 

No
No
Show Text 

Apps and Features 
 

8.5

Apps Picture  

Samsung Q90/Q90R QLED Apps Picture

App Selection 
 

Great

App Smoothness 
 

Average

Cast Capable 
 

Yes

USB Drive Playback 
 

Yes

USB Drive HDR Playback 
 

Yes

HDR in Netflix 
 

Yes

HDR in YouTube 
 

Yes
Show Text 

Remote  

Remote Picture  

Samsung Q90/Q90R QLED Remote Picture
LG C4 OLED Remote Picture

Size 
 

Small

Voice Control  

Many Features
Yes

CEC Menu Control 
 

Yes

Other Smart Features 
 

Yes

Remote App  

Samsung SmartThings
Show Text 

TV Controls  

Controls Picture  

Samsung Q90/Q90R QLED Controls Picture
LG C4 OLED Controls Picture

Mute Switch 
 

Yes
Show Text 

In The Box  

In The Box Picture  

Samsung Q90/Q90R QLED In The Box Picture
LG C4 OLED In The Box Picture
Show Text 

Misc  

Power Consumption  

78 W
78 W

Power Consumption (Max)  

262 W
215 W

Firmware  

1060
03.10.31
Sound Quality

Frequency Response 
 

6.7
6.7

Frequency Response  

See details on graph tool
See details on graph tool

Low-Frequency Extension 
 

75.51 Hz
80.00 Hz

Std. Dev. @ 70 
 

2.59 dB
1.18 dB

Std. Dev. @ 80 
 

4.15 dB
1.68 dB

Std. Dev. @ Max 
 

6.46 dB
5.56 dB

Max 
 

87.5 dB SPL
84.2 dB SPL

Dynamic Range Compression 
 

4.95 dB
5.13 dB

Digital Room Correction  

Yes
Show Text 

Distortion 
 

7.4

Total Harmonic Distortion 
 

See details on graph tool

Weighted THD @ 80 
 

0.290

Weighted THD @ Max 
 

1.104

IMD @ 80 
 

0.53%

IMD @ Max 
 

1.39%
Show Text 
Picture Quality

Contrast 
 

8.4
10

Checkerboard Picture  

Samsung Q90/Q90R QLED Checkerboard Picture
LG C4 OLED Checkerboard Picture

Native Contrast 
 

3,249 : 1
Inf : 1

Contrast with local dimming 
 

11,200 : 1
Inf : 1
Show Text 

Local Dimming 
 

8.0

Local Dimming Video  

Local Dimming 
 

Yes
No

Backlight 
 

Full-Array
No Backlight
Show Text 

SDR Peak Brightness 
 

9.0
6.5

SDR Real Scene Peak Brightness 
 

831 cd/m²
411 cd/m²

SDR Peak 2% Window 
 

1,297 cd/m²
427 cd/m²

SDR Peak 10% Window 
 

1,363 cd/m²
425 cd/m²

SDR Peak 25% Window 
 

1,237 cd/m²
405 cd/m²

SDR Peak 50% Window 
 

774 cd/m²
382 cd/m²

SDR Peak 100% Window 
 

505 cd/m²
259 cd/m²

SDR Sustained 2% Window 
 

1,213 cd/m²
420 cd/m²

SDR Sustained 10% Window 
 

1,284 cd/m²
420 cd/m²

SDR Sustained 25% Window 
 

1,163 cd/m²
401 cd/m²

SDR Sustained 50% Window 
 

773 cd/m²
379 cd/m²

SDR Sustained 100% Window 
 

502 cd/m²
258 cd/m²

SDR ABL 
 

0.052
0.030
Show Text 

HDR Peak Brightness 
 

9.0
7.7

HDR Real Scene Peak Brightness 
 

1,287 cd/m²

HDR Peak 2% Window 
 

1,145 cd/m²
950 cd/m²

HDR Peak 10% Window 
 

1,487 cd/m²
932 cd/m²

HDR Peak 25% Window 
 

1,275 cd/m²
614 cd/m²

HDR Peak 50% Window 
 

816 cd/m²
331 cd/m²

HDR Peak 100% Window 
 

536 cd/m²
194 cd/m²

HDR Sustained 2% Window 
 

1,082 cd/m²
917 cd/m²

HDR Sustained 10% Window 
 

1,410 cd/m²
905 cd/m²

HDR Sustained 25% Window 
 

1,235 cd/m²
582 cd/m²

HDR Sustained 50% Window 
 

814 cd/m²
328 cd/m²

HDR Sustained 100% Window 
 

532 cd/m²
192 cd/m²

HDR ABL 
 

0.050
0.096
Show Text 

Gray Uniformity 
 

7.3
8.1

50% Uniformity Picture  

Samsung Q90/Q90R QLED 50% Uniformity Picture
LG C4 OLED 50% Uniformity Picture

50% Std. Dev. 
 

4.127%
1.063%

50% DSE 
 

0.187%
0.120%

5% Uniformity Picture  

Samsung Q90/Q90R QLED 5% Uniformity Picture
LG C4 OLED 5% Uniformity Picture

5% Std. Dev. 
 

0.545%
0.323%

5% DSE 
 

0.103%
0.102%
Show Text 

Viewing Angle 
 

6.9
8.9

Viewing Angle Video  

Chroma Graph  

Samsung Q90/Q90R QLED Chroma Graph
LG C4 OLED Chroma Graph

Color Washout 
 

32°
48°

Hue Graph  

Samsung Q90/Q90R QLED Hue Graph
LG C4 OLED Hue Graph

Color Shift 
 

37°
27°

Lightness Graph  

Samsung Q90/Q90R QLED Lightness Graph
LG C4 OLED Lightness Graph

Brightness Loss 
 

42°
70°

Black Level Raise 
 

70°
70°

Gamma Shift 
 

23°
70°
Show Text 

Black Uniformity 
 

8.9
10

Native Black Uniformity Picture  

Samsung Q90/Q90R QLED Native Black Uniformity Picture
LG C4 OLED Native Black Uniformity Picture

Native Std. Dev. 
 

0.745%
0.144%

Black Uniformity Picture with Local Dimming  

Samsung Q90/Q90R QLED Black Uniformity Picture with Local Dimming
LG C4 OLED Black Uniformity Picture with Local Dimming

Std. Dev. w/ L.D. 
 

0.452%
N/A
Show Text 

Reflections 
 

9.5
6.5

Reflections Picture  

Samsung Q90/Q90R QLED Reflections Picture

Average Room Off Picture  

Samsung Q90/Q90R QLED Average Room Off Picture

Bright Room Off Picture  

Samsung Q90/Q90R QLED Bright Room Off Picture
LG C4 OLED Bright Room Off Picture

Screen Finish 
 

Glossy
Glossy

Total Reflections 
 

1.1%

Indirect Reflections 
 

0.9%

Calculated Direct Reflections 
 

0.2%
Show Text 

Pre Calibration 
 

7.2
8.7

Pre White Balance Picture  

Samsung Q90/Q90R QLED Pre White Balance Picture
LG C4 OLED Pre White Balance Picture

Pre Gamma Curve Picture  

Samsung Q90/Q90R QLED Pre Gamma Curve Picture
LG C4 OLED Pre Gamma Curve Picture

Pre Color Picture  

Samsung Q90/Q90R QLED Pre Color Picture
LG C4 OLED Pre Color Picture

White Balance dE 
 

3.79
1.61

Color dE 
 

2.58
0.97

Gamma 
 

2.21
2.19

Color Temperature 
 

5,859 K
6,262 K

Picture Mode 
 

Movie
Expert (Dark Space)

Color Temp Setting 
 

Warm 2
Warm 50

Gamma Setting 
 

2.2
2.2
Show Text 

Post Calibration 
 

9.5
9.7

Post White Balance Picture  

Samsung Q90/Q90R QLED Post White Balance Picture
LG C4 OLED Post White Balance Picture

Post Gamma Curve Picture  

Samsung Q90/Q90R QLED Post Gamma Curve Picture
LG C4 OLED Post Gamma Curve Picture

Post Color Picture  

Samsung Q90/Q90R QLED Post Color Picture
LG C4 OLED Post Color Picture

White Balance dE 
 

0.30
0.26

Color dE 
 

1.09
0.62

Gamma 
 

2.22
2.20

Color Temperature 
 

6,473 K
6,460 K

White Balance Calibration 
 

20 point
22 point

Color Calibration 
 

Yes
Yes

Auto-Calibration Function 
 

Yes
Show Text 

480p Input 
 

8.0
8.0

480p Picture  

Samsung Q90/Q90R QLED 480p Picture
LG C4 OLED 480p Picture
Show Text 

720p Input 
 

8.0

720p Picture  

Samsung Q90/Q90R QLED 720p Picture
Show Text 

1080p Input 
 

9.0

1080p Picture  

Samsung Q90/Q90R QLED 1080p Picture
Show Text 

4k Input 
 

10

4k Picture  

Samsung Q90/Q90R QLED 4k Picture
Show Text 

8k Input 
 

0.0

8k Picture  

Samsung Q90/Q90R QLED 8k Picture
Show Text 

Pixels 
 

Pixels Picture  

Samsung Q90/Q90R QLED Pixels Picture
LG C4 OLED Pixels Picture

Type  

LED
OLED

Sub-Type 
 

VA
WOLED
Show Text 

Color Gamut 
 

8.3

Wide Color Gamut 
 

Yes

Color Gamut DCI-P3 Picture  

Samsung Q90/Q90R QLED Color Gamut DCI-P3 Picture

DCI P3 xy 
 

90.92%

DCI P3 uv 
 

94.14%

Color Gamut Rec.2020 Picture  

Samsung Q90/Q90R QLED Color Gamut Rec.2020 Picture

Rec 2020 xy 
 

68.66%

Rec 2020 uv 
 

76.76%

EOTF  

Samsung Q90/Q90R QLED EOTF
Show Text 

Color Volume 
 

7.9
7.6

P3 Color Volume ITP Picture  

Samsung Q90/Q90R QLED P3 Color Volume ITP Picture
LG C4 OLED P3 Color Volume ITP Picture

Normalized DCI P3 Coverage ITP 
 

88.3%

10,000 cd/m² DCI P3 Coverage ITP 
 

53.8%
79.2%

2020 Color Volume ITP Picture  

Samsung Q90/Q90R QLED 2020 Color Volume ITP Picture
LG C4 OLED 2020 Color Volume ITP Picture

Normalized Rec 2020 Coverage ITP 
 

70.4%

10,000 cd/m² Rec 2020 Coverage ITP 
 

43.6%
36.2%
Show Text 

Gradient 
 

8.1
7.8

Gradient Picture  

Samsung Q90/Q90R QLED Gradient Picture
LG C4 OLED Gradient Picture

Color Depth 
 

10 Bit

Red (Std. Dev.) 
 

0.112

Green (Std. Dev.) 
 

0.126

Blue (Std. Dev.) 
 

0.089

Gray (Std. Dev.) 
 

0.096
Show Text 

Temporary Image Retention 
 

10

Image Retention Picture  

Samsung Q90/Q90R QLED 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%
Show Text 

Permanent Burn-In Risk 
 

10

Permanent Burn-In Risk 
 

No
Show Text 
Motion

Response Time 
 

8.5
9.6

Motion Blur Picture  

Samsung Q90/Q90R QLED Motion Blur Picture
LG C4 OLED Motion Blur Picture

Response Time Chart  

Samsung Q90/Q90R QLED Response Time Chart

80% Response Time 
 

3.7 ms

100% Response Time 
 

9.6 ms
Show Text 

Flicker-Free 
 

9.9
0.0

Backlight chart 
 

Samsung Q90/Q90R QLED Backlight chart
LG C4 OLED Backlight chart

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

960 Hz
0 Hz
Show Text 

Black Frame Insertion (BFI) 
 

10
0.0

BFI Picture  

Samsung Q90/Q90R QLED BFI Picture
LG C4 OLED BFI Picture

BFI Frequency Picture  

Samsung Q90/Q90R QLED BFI Frequency Picture
LG C4 OLED BFI Frequency Picture

Optional BFI 
 

Yes
Yes

Min Flicker for 60 fps 
 

60 Hz
60 Hz

60 Hz for 60 fps 
 

Yes
Yes

120 Hz for 120 fps 
 

Yes
No

Min Flicker for 60 fps in Game Mode 
 

60 Hz
60 Hz
Show Text 

Motion Interpolation 
 

Motion Interpolation (30 fps) Picture  

Samsung Q90/Q90R QLED Motion Interpolation (30 fps) Picture
LG C4 OLED Motion Interpolation (30 fps) Picture

Motion Interpolation (30 fps) 
 

Yes
Yes

Motion Interpolation (60 fps) Picture  

Samsung Q90/Q90R QLED Motion Interpolation (60 fps) Picture
LG C4 OLED Motion Interpolation (60 fps) Picture

Motion Interpolation (60 fps) 
 

Yes
Yes
Show Text 

Stutter 
 

6.7
4.2

Frame Hold Time @ 24 fps 
 

32.1 ms
41.3 ms

Frame Hold Time @ 60 fps 
 

7.1 ms
16.3 ms
Show Text 

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
Show Text 

Variable Refresh Rate 
 

9.4
8.5

Native Refresh Rate 
 

120 Hz
144Hz

Variable Refresh Rate 
 

Yes
Yes

HDMI Forum VRR 
 

Yes
Yes

FreeSync 
 

Yes
Yes

G-SYNC Compatible 
 

No
Yes (NVIDIA Certified)

4k VRR Maximum 
 

144 Hz

4k VRR Minimum 
 

< 20 Hz

1080p VRR Maximum 
 

120 Hz
144 Hz

1080p VRR Minimum 
 

< 20 Hz
< 20 Hz

1440p VRR Maximum 
 

120 Hz

1440p VRR Minimum 
 

< 20 Hz

VRR Supported Connectors 
 

HDMI
Show Text 

Check Price

42"
 
42"
OLED42C4PUA
Searching
Finding store
48"
 
48"
OLED48C4PUA
Searching
Finding store
55"
 
55"
OLED55C4PUA
Searching
Finding store
65"
QN65Q90RAFXZA
Searching
Finding store
65"
OLED65C4PUA
Searching
Finding store
75"
QN75Q90RAFXZA
Searching
Finding store
75"
 
77"
 
77"
OLED77C4PUA
Searching
Finding store
82"
QN82Q90RAFXZA
Searching
Finding store
82"
 
83"
 
83"
OLED83C4PUA
Searching
Finding store
Back to Top

Samsung Q90/Q90R QLED

LG C4 OLED

Comments

  1. Comparison

Samsung Q90/Q90R QLED vs LG C4 OLED: Main Discussion

What do you think of our picks? Let us know below by starting a discussion.


Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.

PreviewBack to editorFormat guide
We make money directly from you via insider access (which gives you access to extra features) and when you buy a product after clicking a link to a retailer. Learn more about how we work.
We buy our own products, just like you, mostly from the United States. When a product is discontinued or no longer popular, we sell the review units locally. You can see what products we currently have for sale here.
© 2025 9298-5266 Quebec Inc. All Rights Reserved.