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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Market Context
    1. Market Context
  5. Design
    1. Style
    2. Stand
    3. Back
    4. Borders
    5. Thickness
    6. Build Quality
  6. 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
  7. Motion
    1. Response Time
    2. Flicker-Free
    3. Black Frame Insertion (BFI)
    4. Motion Interpolation
    5. Stutter
    6. 24p Judder
    7. Variable Refresh Rate
  8. Inputs
    1. Input Lag
    2. Supported Resolutions
    3. Input Photos
    4. Total Inputs
    5. Inputs Specifications
    6. Audio Passthrough
  9. Sound Quality
    1. Frequency Response
    2. Distortion
  10. Smart Features
    1. Interface
    2. Ad-Free
    3. Apps and Features
    4. Remote
    5. TV Controls
    6. In The Box
    7. Misc
  11. Comments

LG C9 OLED vs Samsung Q90/Q90R QLED

Side-by-Side Comparison

Products

LG C9 OLED
Samsung Q90/Q90R QLED

Tested using Methodology v1.5

Updated Apr 12, 2024 03:47 PM

SEE PRICE
Walmart.com

Tested using Methodology v1.5

Updated Sep 04, 2021 04:35 PM

SEE PRICE
Amazon.com
LG C9 OLED Picture
Samsung Q90/Q90R QLED Picture

Variants

  • OLED55C9PUA (55")
  • OLED65C9PUA (65")
  • OLED77C9PUA (77")
  • QN65Q90RAFXZA (65")
  • QN75Q90RAFXZA (75")
  • QN82Q90RAFXZA (82")

Our Verdict

LG C9 OLED

Samsung Q90/Q90R QLED

The Samsung Q90/Q90R and the LG C9 use different panel types, each with their advantages and disadvantages. The C9 looks much better in a dark room, as the OLED panel delivers a nearly infinite contrast ratio and near-perfect black uniformity. The Q90R is significantly brighter, and the brightness doesn't change as much with different content (ABL). The C9 has better gray uniformity and better viewing angles. The C9 has a risk of permanent burn-in when exposed to static content, but the Q90 doesn't.

0

Main Differences for

Threshold 

0.10
No major differences between these TVs for this usage. See full list of tests below.

Full Comparison

Market Context

Market Context 
 

Show text

Design

Style  

9.5
9.5

Design Picture  

LG C9 OLED Design Picture
Samsung Q90/Q90R QLED Design Picture

Curved  

No
No

Show text

Stand  

Stand Picture  

LG C9 OLED Stand Picture
Samsung Q90/Q90R QLED Stand Picture

Show text

Back  

Back Picture  

LG C9 OLED Back Picture
Samsung Q90/Q90R QLED Back Picture

Wall Mount  

VESA 300x200
VESA 400x400

Show text

Borders  

Borders Picture  

LG C9 OLED Borders Picture
Samsung Q90/Q90R QLED Borders Picture

Borders  

0.37" (0.9 cm)
0.43" (1.1 cm)

Show text

Thickness  

Thickness Picture  

LG C9 OLED Thickness Picture
Samsung Q90/Q90R QLED Thickness Picture

Max Thickness  

1.87" (4.8 cm)
1.54" (3.9 cm)

Show text

Build Quality 
 

9.0
9.5

Build quality picture  

LG C9 OLED Build quality picture
Samsung Q90/Q90R QLED Build quality picture

Show text

Picture Quality

Contrast 
 

10
8.4

Checkerboard Picture  

LG C9 OLED Checkerboard Picture
Samsung Q90/Q90R QLED Checkerboard Picture

Native Contrast 
 

Inf : 1
3,249 : 1

Contrast with local dimming 
 

N/A
11,200 : 1

Show text

Local Dimming 
 

10
8.0

Local Dimming Video  

Local Dimming 
 

No
Yes

Backlight 
 

No Backlight
Full-Array

Show text

SDR Peak Brightness 
 

7.1
9.0

SDR Real Scene Peak Brightness 
 

335 cd/m²
831 cd/m²

SDR Peak 2% Window 
 

447 cd/m²
1,297 cd/m²

SDR Peak 10% Window 
 

444 cd/m²
1,363 cd/m²

SDR Peak 25% Window 
 

398 cd/m²
1,237 cd/m²

SDR Peak 50% Window 
 

330 cd/m²
774 cd/m²

SDR Peak 100% Window 
 

157 cd/m²
505 cd/m²

SDR Sustained 2% Window 
 

430 cd/m²
1,213 cd/m²

SDR Sustained 10% Window 
 

426 cd/m²
1,284 cd/m²

SDR Sustained 25% Window 
 

382 cd/m²
1,163 cd/m²

SDR Sustained 50% Window 
 

317 cd/m²
773 cd/m²

SDR Sustained 100% Window 
 

151 cd/m²
502 cd/m²

SDR ABL 
 

0.072
0.052

Show text

HDR Peak Brightness 
 

7.3
9.0

HDR Real Scene Peak Brightness 
 

726 cd/m²
1,287 cd/m²

HDR Peak 2% Window 
 

855 cd/m²
1,145 cd/m²

HDR Peak 10% Window 
 

845 cd/m²
1,487 cd/m²

HDR Peak 25% Window 
 

530 cd/m²
1,275 cd/m²

HDR Peak 50% Window 
 

301 cd/m²
816 cd/m²

HDR Peak 100% Window 
 

145 cd/m²
536 cd/m²

HDR Sustained 2% Window 
 

814 cd/m²
1,082 cd/m²

HDR Sustained 10% Window 
 

802 cd/m²
1,410 cd/m²

HDR Sustained 25% Window 
 

506 cd/m²
1,235 cd/m²

HDR Sustained 50% Window 
 

286 cd/m²
814 cd/m²

HDR Sustained 100% Window 
 

138 cd/m²
532 cd/m²

HDR ABL 
 

0.109
0.050

Show text

Gray Uniformity 
 

8.6
7.3

50% Uniformity Picture  

LG C9 OLED 50% Uniformity Picture
Samsung Q90/Q90R QLED 50% Uniformity Picture

50% Std. Dev. 
 

0.989%
4.127%

50% DSE 
 

0.128%
0.187%

5% Uniformity Picture  

LG C9 OLED 5% Uniformity Picture
Samsung Q90/Q90R QLED 5% Uniformity Picture

5% Std. Dev. 
 

0.499%
0.545%

5% DSE 
 

0.102%
0.103%

Show text

Viewing Angle 
 

8.8
6.9

Viewing Angle Video  

Chroma Graph  

LG C9 OLED Chroma Graph
Samsung Q90/Q90R QLED Chroma Graph

Color Washout 
 

49°
32°

Hue Graph  

LG C9 OLED Hue Graph
Samsung Q90/Q90R QLED Hue Graph

Color Shift 
 

31°
37°

Lightness Graph  

LG C9 OLED Lightness Graph
Samsung Q90/Q90R QLED Lightness Graph

Brightness Loss 
 

67°
42°

Black Level Raise 
 

70°
70°

Gamma Shift 
 

67°
23°

Show text

Black Uniformity 
 

10
8.9

Native Black Uniformity Picture  

LG C9 OLED Native Black Uniformity Picture
Samsung Q90/Q90R QLED Native Black Uniformity Picture

Native Std. Dev. 
 

0.249%
0.745%

Black Uniformity Picture with Local Dimming  

LG C9 OLED Black Uniformity Picture with Local Dimming
Samsung Q90/Q90R QLED Black Uniformity Picture with Local Dimming

Std. Dev. w/ L.D. 
 

N/A
0.452%

Show text

Reflections 
 

9.3
9.5

Reflections Picture  

LG C9 OLED Reflections Picture
Samsung Q90/Q90R QLED Reflections Picture

Average Room Off Picture  

LG C9 OLED Average Room Off Picture
Samsung Q90/Q90R QLED Average Room Off Picture

Bright Room Off Picture  

LG C9 OLED Bright Room Off Picture
Samsung Q90/Q90R QLED Bright Room Off Picture

Screen Finish 
 

Glossy
Glossy

Total Reflections 
 

1.4%
1.1%

Indirect Reflections 
 

0.2%
0.9%

Calculated Direct Reflections 
 

1.2%
0.2%

Show text

Pre Calibration 
 

7.6
7.2

Pre White Balance Picture  

LG C9 OLED Pre White Balance Picture
Samsung Q90/Q90R QLED Pre White Balance Picture

Pre Gamma Curve Picture  

LG C9 OLED Pre Gamma Curve Picture
Samsung Q90/Q90R QLED Pre Gamma Curve Picture

Pre Color Picture  

LG C9 OLED Pre Color Picture
Samsung Q90/Q90R QLED Pre Color Picture

White Balance dE 
 

3.46
3.79

Color dE 
 

2.11
2.58

Gamma 
 

2.17
2.21

Color Temperature 
 

5,929 K
5,859 K

Picture Mode 
 

Expert (Dark Room)
Movie

Color Temp Setting 
 

Warm 2
Warm 2

Gamma Setting 
 

2.2
2.2

Show text

Post Calibration 
 

9.5
9.5

Post White Balance Picture  

LG C9 OLED Post White Balance Picture
Samsung Q90/Q90R QLED Post White Balance Picture

Post Gamma Curve Picture  

LG C9 OLED Post Gamma Curve Picture
Samsung Q90/Q90R QLED Post Gamma Curve Picture

Post Color Picture  

LG C9 OLED Post Color Picture
Samsung Q90/Q90R QLED Post Color Picture

White Balance dE 
 

0.44
0.30

Color dE 
 

0.91
1.09

Gamma 
 

2.18
2.22

Color Temperature 
 

6,539 K
6,473 K

White Balance Calibration 
 

22 point
20 point

Color Calibration 
 

Yes
Yes

Auto-Calibration Function 
 

Yes
Yes

Show text

480p Input 
 

8.0
8.0

480p Picture  

LG C9 OLED 480p Picture
Samsung Q90/Q90R QLED 480p Picture

Show text

720p Input 
 

8.0
8.0

720p Picture  

LG C9 OLED 720p Picture
Samsung Q90/Q90R QLED 720p Picture

Show text

1080p Input 
 

9.0
9.0

1080p Picture  

LG C9 OLED 1080p Picture
Samsung Q90/Q90R QLED 1080p Picture

Show text

4k Input 
 

10
10

4k Picture  

LG C9 OLED 4k Picture
Samsung Q90/Q90R QLED 4k Picture

Show text

8k Input 
 

0.0
0.0

8k Picture  

LG C9 OLED 8k Picture
Samsung Q90/Q90R QLED 8k Picture

Show text

Pixels 
 

Pixels Picture  

LG C9 OLED Pixels Picture
Samsung Q90/Q90R QLED Pixels Picture

Type  

OLED
LED

Sub-Type 
 

WRGB
VA

Show text

Color Gamut 
 

8.6
8.3

Wide Color Gamut 
 

Yes
Yes

Color Gamut DCI-P3 Picture  

LG C9 OLED Color Gamut DCI-P3 Picture
Samsung Q90/Q90R QLED Color Gamut DCI-P3 Picture

DCI P3 xy 
 

97.21%
90.92%

DCI P3 uv 
 

98.68%
94.14%

Color Gamut Rec.2020 Picture  

LG C9 OLED Color Gamut Rec.2020 Picture
Samsung Q90/Q90R QLED Color Gamut Rec.2020 Picture

Rec 2020 xy 
 

71.57%
68.66%

Rec 2020 uv 
 

75.53%
76.76%

EOTF  

LG C9 OLED EOTF
Samsung Q90/Q90R QLED EOTF

Show text

Color Volume 
 

7.4
7.9

P3 Color Volume ITP Picture  

LG C9 OLED P3 Color Volume ITP Picture
Samsung Q90/Q90R QLED P3 Color Volume ITP Picture

Normalized DCI P3 Coverage ITP 
 

84.6%
88.3%

10,000 cd/m² DCI P3 Coverage ITP 
 

46.8%
53.8%

2020 Color Volume ITP Picture  

LG C9 OLED 2020 Color Volume ITP Picture
Samsung Q90/Q90R QLED 2020 Color Volume ITP Picture

Normalized Rec 2020 Coverage ITP 
 

61.7%
70.4%

10,000 cd/m² Rec 2020 Coverage ITP 
 

34.4%
43.6%

Show text

Gradient 
 

9.0
8.1

Gradient Picture  

LG C9 OLED Gradient Picture
Samsung Q90/Q90R QLED Gradient Picture

Color Depth 
 

10 Bit
10 Bit

Red (Std. Dev.) 
 

0.081
0.112

Green (Std. Dev.) 
 

0.091
0.126

Blue (Std. Dev.) 
 

0.072
0.089

Gray (Std. Dev.) 
 

0.074
0.096

Show text

Temporary Image Retention 
 

10
10

Image Retention Picture  

LG C9 OLED Image Retention Picture
Samsung Q90/Q90R QLED 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%

Show text

Permanent Burn-In Risk 
 

2.0
10

Permanent Burn-In Risk 
 

Yes
No

Show text

Motion

Response Time 
 

9.9
8.5

Motion Blur Picture  

LG C9 OLED Motion Blur Picture
Samsung Q90/Q90R QLED Motion Blur Picture

Response Time Chart  

LG C9 OLED Response Time Chart
Samsung Q90/Q90R QLED Response Time Chart

80% Response Time 
 

0.2 ms
3.7 ms

100% Response Time 
 

2.4 ms
9.6 ms

Show text

Flicker-Free 
 

10
9.9

Backlight chart 
 

LG C9 OLED Backlight chart
Samsung Q90/Q90R QLED Backlight chart

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

0 Hz
960 Hz

Show text

Black Frame Insertion (BFI) 
 

8.7
10

BFI Picture  

LG C9 OLED BFI Picture
Samsung Q90/Q90R QLED BFI Picture

BFI Frequency Picture  

LG C9 OLED BFI Frequency Picture
Samsung Q90/Q90R QLED 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 
 

No
Yes

Min Flicker for 60 fps in Game Mode 
 

60 Hz
60 Hz

Show text

Motion Interpolation 
 

Motion Interpolation (30 fps) Picture  

LG C9 OLED Motion Interpolation (30 fps) Picture
Samsung Q90/Q90R QLED Motion Interpolation (30 fps) Picture

Motion Interpolation (30 fps) 
 

Yes
Yes

Motion Interpolation (60 fps) Picture  

LG C9 OLED Motion Interpolation (60 fps) Picture
Samsung Q90/Q90R QLED Motion Interpolation (60 fps) Picture

Motion Interpolation (60 fps) 
 

Yes
Yes

Show text

Stutter 
 

5.0
6.7

Frame Hold Time @ 24 fps 
 

39.3 ms
32.1 ms

Frame Hold Time @ 60 fps 
 

14.3 ms
7.1 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 
 

7.6
9.4

Native Refresh Rate 
 

120 Hz
120 Hz

Variable Refresh Rate 
 

Yes
Yes

HDMI Forum VRR 
 

Yes
Yes

FreeSync 
 

No
Yes

G-SYNC Compatible 
 

Yes (NVIDIA Certified)
No

4k VRR Maximum 
 

60 Hz

4k VRR Minimum 
 

40 Hz

1080p VRR Maximum 
 

120 Hz
120 Hz

1080p VRR Minimum 
 

40 Hz
< 20 Hz

1440p VRR Maximum 
 

120 Hz
120 Hz

1440p VRR Minimum 
 

40 Hz
< 20 Hz

VRR Supported Connectors 
 

HDMI
HDMI

Show text

Inputs

Input Lag 
 

8.8
8.7

1080p @ 60 Hz 
 

13.5 ms
14.7 ms

1080p @ 60 Hz Outside Game Mode 
 

100.8 ms
77.2 ms

1440p @ 60 Hz 
 

13.9 ms
14.6 ms

4k @ 60 Hz 
 

13.5 ms
14.7 ms

4k @ 60 Hz + 10 bit HDR 
 

13.4 ms
14.6 ms

4k @ 60 Hz @ 4:4:4 
 

13.3 ms
14.5 ms

4k @ 60 Hz Outside Game Mode 
 

50.6 ms
57.1 ms

4k @ 60 Hz With Interpolation 
 

96.7 ms
21.2 ms

8k @ 60 Hz 
 

N/A
N/A

1080p @ 120 Hz 
 

6.8 ms
6.0 ms

1440p @ 120 Hz 
 

6.6 ms
6.1 ms

4k @ 120 Hz 
 

7.1 ms

1080p with Variable Refresh Rate 
 

6.3 ms
5.9 ms

1440p with VRR 
 

6.7 ms
6.1 ms

4k with VRR 
 

15.9 ms
14.1 ms

8k with VRR 
 

N/A
N/A

Auto Low Latency Mode (ALLM) 
 

Yes
Yes

Show text

Supported Resolutions 
 

9.6
9.6

Resolution  

4k
4k

1080p @ 60 Hz @ 4:4:4 
 

Yes
Yes

1080p @ 120 Hz 
 

Yes (native support)
Yes (native support)

1440p @ 60 Hz 
 

Yes (forced resolution required)
Yes (native support)

1440p @ 120 Hz 
 

Yes (native support)
Yes (native support)

4k @ 60 Hz 
 

Yes
Yes

4k @ 60 Hz @ 4:4:4 
 

Yes
Yes

4k @ 120 Hz 
 

Yes (native support)

8k @ 30 Hz or 24 Hz 
 

No
No

8k @ 60 Hz 
 

No
No

Show text

Input Photos  

Side Inputs Picture  

LG C9 OLED Side Inputs Picture
Samsung Q90/Q90R QLED Side Inputs Picture

Rear Inputs Picture  

LG C9 OLED Rear Inputs Picture
Samsung Q90/Q90R QLED Rear Inputs Picture

Total Inputs  

HDMI  

4
4

USB  

3
3

Digital Optical Audio Out  

1
1

Analog Audio Out 3.5mm  

1
0

Analog Audio Out RCA  

0
0

Component In  

0
0

Composite In  

1 (incl. adapter)
0

Tuner (Cable/Ant)  

1
1

Ethernet  

1
1

DisplayPort  

0
0

IR In  

0
0

SD/SDHC  

0
0

Inputs Specifications  

HDR10 
 

Yes
Yes

HDR10+ 
 

No
Yes

Dolby Vision 
 

Yes
No

HLG 
 

Yes
Yes

3D 
 

No
No

HDMI 2.0 Full Bandwidth 
 

Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)

HDMI 2.1 
 

Yes (HDMI 1,2,3,4)
Unknown

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  

Yes
No

Wi-Fi Support  

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

Show text

Audio Passthrough 
 

ARC 
 

Yes (HDMI 2)
Yes (HDMI 3)

eARC support 
 

Yes
No

Dolby Atmos via TrueHD via eARC 
 

Yes
No

DTS:X via DTS-HD MA via eARC 
 

Yes
No

5.1 Dolby Digital via ARC 
 

Yes
Yes

5.1 DTS via ARC 
 

Yes
No

5.1 Dolby Digital via Optical 
 

Yes
Yes

5.1 DTS via Optical 
 

Yes
No

Show text

Sound Quality

Frequency Response 
 

7.4
6.7

Frequency Response  

See details on graph tool
See details on graph tool

Low-Frequency Extension 
 

67.27 Hz
75.51 Hz

Std. Dev. @ 70 
 

2.67 dB
2.59 dB

Std. Dev. @ 80 
 

2.74 dB
4.15 dB

Std. Dev. @ Max 
 

4.94 dB
6.46 dB

Max 
 

87.8 dB SPL
87.5 dB SPL

Dynamic Range Compression 
 

4.00 dB
4.95 dB

Show text

Distortion 
 

6.0
7.4

Total Harmonic Distortion 
 

See details on graph tool
See details on graph tool

Weighted THD @ 80 
 

0.263
0.290

Weighted THD @ Max 
 

3.477
1.104

IMD @ 80 
 

10.58%
0.53%

IMD @ Max 
 

25.15%
1.39%

Show text

Smart Features

Interface 
 

8.5
8.0

Smart TV Picture  

LG C9 OLED Smart TV Picture
Samsung Q90/Q90R QLED Smart TV Picture

Smart OS  

WebOS
Tizen

Version  

4.5
2019

Ease of Use 
 

Easy
Easy

Smoothness 
 

Average
Very Smooth

Time Taken to Select YouTube 
 

2 s
2 s

Time Taken to Change Backlight 
 

7 s
7 s

Advanced Options 
 

Many
Many

Show text

Ad-Free 
 

0.0
0.0

Ads Picture  

LG C9 OLED Ads Picture
Samsung Q90/Q90R QLED Ads Picture

Ads 
 

Yes
Yes

Opt-out 
 

No
No

Suggested Content in Home 
 

Yes
Yes

Opt-out of Suggested Content 
 

No
No

Show text

Apps and Features 
 

8.0
8.5

Apps Picture  

LG C9 OLED Apps Picture
Samsung Q90/Q90R QLED 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

Show text

Remote 
 

9.0
8.5

Remote Picture  

LG C9 OLED Remote Picture
Samsung Q90/Q90R QLED Remote Picture

Size 
 

Large
Small

Voice Control 
 

Many Features
Many Features

CEC Menu Control 
 

Yes
Yes

Other Smart Features 
 

Yes
Yes

Remote App  

LG TV Plus
Samsung SmartThings

Show text

TV Controls  

Controls Picture  

LG C9 OLED Controls Picture
Samsung Q90/Q90R QLED Controls Picture

Show text

In The Box  

In The Box Picture  

LG C9 OLED In The Box Picture
Samsung Q90/Q90R QLED In The Box Picture

Show text

Misc  

Power Consumption  

89 W
78 W

Power Consumption (Max)  

171 W
262 W

Firmware  

03.50.22
1060

LG C9 OLED

Samsung Q90/Q90R QLED

Comments

  1. Comparison

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