LG CX OLED vs Samsung QN90A QLED Side-by-Side TV Comparison

Tested using Methodology v1.11

Updated Feb 07, 2025 06:56 PM

Resolution4k

TypeOLED

Sub-TypeWOLED

Resolution4k

TypeLED

Sub-TypeVA

Variants

OLED48CXPUB (48")
OLED55CXPUA (55")
OLED65CXPUA (65")
OLED77CXPUA (77")

QN43QN90AAFXZA (43")
QN50QN90AAFXZA (50")
QN55QN90AAFXZA (55")
QN65QN90AAFXZA (65")
QN75QN90AAFXZA (75")
QN85QN90AAFXZA (85")
QN98QN90AAFXZA (98")

Review

See LG CX OLED review

See Samsung QN90A QLED review

Our Verdict

LG CX OLED

Samsung QN90A QLED

The LG GX OLED and the Samsung QN90A QLED are both excellent TVs, but they use different panel types. The LG uses an OLED panel that can turn individual pixels off, resulting in perfect black levels. It also has wider viewing angles and a near-instantaneous response time. However, the Samsung uses an LCD panel with Mini LED as backlighting, so it's much brighter, allowing it to make highlights pop in HDR. They both have a 120Hz panel with HDMI 2.1 support for gaming, but the Samsung has one HDMI 2.1 input, while the LG has four.

Check Price

Searching

Finding store

43"

QN43QN90AAFXZA

48"

OLED48CXPUB

50"

QN50QN90AAFXZA

55"

OLED55CXPUA

55"

QN55QN90AAFXZA

65"

OLED65CXPUA

65"

QN65QN90AAFXZA

75"

QN75QN90AAFXZA

77"

OLED77CXPUA

85"

QN85QN90AAFXZA

98"

QN98QN90AAFXZA

Notice: Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable. Learn how our test benches and scoring system work, and read more about the latest changes to our TVs test methodology.

Main Differences for

Threshold

0.10

Mixed Usage

8.8

8.4

Contrast

8.7

SDR Brightness

7.0

9.3

HDR Brightness

7.1

9.1

Gray Uniformity

8.5

7.1

Full Comparison

Mixed Usage

8.8

8.4

Movies

9.4

TV Shows

8.2

8.1

Sports

8.6

8.3

Video Games

9.3

8.8

HDR Movies

8.8

8.3

HDR Gaming

9.0

8.8

PC Monitor

8.7

9.0

Design

Style

Design Picture

Curved

Show text

Accelerated Longevity Test

Uniformity Pictures

Month 24

50% Gray

Cycle through colors

Month 24

50% Gray

Cycle through colors

Longevity Graph

Stand

Stand Picture

Show text

Back

Back Picture

Wall Mount

VESA 300x200

VESA 200x200

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Borders

Borders Picture

Borders

0.35" (0.9 cm)

Thickness

Thickness Picture

Max Thickness

1.93" (4.9 cm)

1.06" (2.7 cm)

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Build Quality

9.0

Build quality picture

Show text

Picture Quality

Contrast

8.7

Contrast Picture

Contrast

N/A

75,855 : 1

Native Contrast

Inf : 1

3,640 : 1

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Blooming

8.5

Blooming Photo

Lighting Zone Transitions

7.5

Preferred LD Video, Moving Object

Local Dimming

Yes

Backlight

No Backlight

Full-Array

Dimming Zones Count Of Tested TV

576

Contrast And Dark Details In Game Mode

8.0

Blooming Photo In Game Mode

Preferred LD Video, Moving Object In Game Mode

Game Transitions With VRR And Preferred LD

HDR Brightness

7.1

9.1

HDR Hallway Photo

HDR Cityscape Photo

HDR Landscape Photo

Hallway Lights (~1950 cd/m²)

1,244 cd/m²

Yellow Skyscraper (~700 cd/m²)

382 cd/m²

Landscape Pool (~300 cd/m²)

349 cd/m²

Peak 2% Window

760 cd/m²

1,564 cd/m²

Peak 10% Window

817 cd/m²

1,609 cd/m²

Peak 25% Window

465 cd/m²

1,653 cd/m²

Peak 50% Window

311 cd/m²

1,216 cd/m²

Peak 100% Window

152 cd/m²

757 cd/m²

Sustained 2% Window

720 cd/m²

1,561 cd/m²

Sustained 10% Window

776 cd/m²

1,584 cd/m²

Sustained 25% Window

443 cd/m²

1,637 cd/m²

Sustained 50% Window

293 cd/m²

1,210 cd/m²

Sustained 100% Window

146 cd/m²

755 cd/m²

Automatic Brightness Limiting (ABL)

0.101

0.040

EOTF

Real Scene Highlight

681 cd/m²

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HDR Brightness In Game Mode

6.7

9.2

HDR Hallway Photo

HDR Cityscape Photo

HDR Landscape Photo

Hallway Lights (~1950 cd/m²)

1,086 cd/m²

Yellow Skyscraper (~700 cd/m²)

450 cd/m²

Landscape Pool (~300 cd/m²)

367 cd/m²

Peak 2% Window

749 cd/m²

1,499 cd/m²

Peak 10% Window

804 cd/m²

1,567 cd/m²

Peak 25% Window

457 cd/m²

1,608 cd/m²

Peak 50% Window

320 cd/m²

1,109 cd/m²

Peak 100% Window

152 cd/m²

749 cd/m²

Sustained 2% Window

633 cd/m²

1,492 cd/m²

Sustained 10% Window

768 cd/m²

1,552 cd/m²

Sustained 25% Window

433 cd/m²

1,593 cd/m²

Sustained 50% Window

302 cd/m²

1,106 cd/m²

Sustained 100% Window

147 cd/m²

748 cd/m²

Automatic Brightness Limiting (ABL)

0.096

0.051

Game Mode EOTF

Real Scene Highlight

563 cd/m²

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PQ EOTF Tracking

6.6

PQ EOTF Graph

600 Nit Tracking Delta

0.0365

1000 Nit Tracking Delta

0.0365

4000 Nit Tracking Delta

0.0318

SDR Brightness

7.0

9.3

Real Scene Peak Brightness

321 cd/m²

1,088 cd/m²

Peak 2% Window

459 cd/m²

1,086 cd/m²

Peak 10% Window

456 cd/m²

1,357 cd/m²

Peak 25% Window

414 cd/m²

1,372 cd/m²

Peak 50% Window

340 cd/m²

1,162 cd/m²

Peak 100% Window

176 cd/m²

674 cd/m²

Sustained 2% Window

439 cd/m²

1,064 cd/m²

Sustained 10% Window

435 cd/m²

1,302 cd/m²

Sustained 25% Window

395 cd/m²

1,350 cd/m²

Sustained 50% Window

324 cd/m²

1,152 cd/m²

Sustained 100% Window

146 cd/m²

671 cd/m²

Automatic Brightness Limiting (ABL)

0.069

0.038

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Color Gamut

8.6

8.5

Wide Color Gamut

Yes

Color Gamut DCI-P3 Picture

DCI P3 xy

97.32%

95.92%

DCI P3 uv

98.71%

95.92%

Color Gamut Rec.2020 Picture

Rec 2020 xy

71.67%

72.06%

Rec 2020 uv

75.65%

77.93%

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Color Volume

7.1

8.9

P3 Color Volume ITP Picture

1,000 cd/m² DCI P3 Coverage ITP

44.2%

91.6%

2020 Color Volume ITP Picture

10,000 cd/m² Rec 2020 Coverage ITP

33.5%

48.3%

White Luminance

1,586 cd/m²

Red Luminance

322 cd/m²

Green Luminance

1,184 cd/m²

Blue Luminance

91 cd/m²

Cyan Luminance

1,290 cd/m²

Magenta Luminance

393 cd/m²

Yellow Luminance

1,448 cd/m²

Normalized DCI P3 Coverage ITP

80.6%

Normalized Rec 2020 Coverage ITP

61.0%

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Local Dimming

LD Video, Moving Object

LD Video, Real Content

LD Video, Real Content Side View

Local Dimming

Yes

Backlight

No Backlight

Full-Array

Show text

Pre Calibration

8.2

9.2

Pre White Balance Picture

Pre Gamma Curve Picture

Pre Color Picture

White Balance dE

2.47

0.85

Color dE

1.77

1.39

Gamma

2.19

2.20

Color Temperature

7,034 K

6,620 K

Picture Mode

Expert (Dark Room)

Movie

Color Temp Setting

Warm 2

Gamma Setting

2.2

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Post Calibration

9.6

9.5

Post White Balance Picture

Post Gamma Curve Picture

Post Color Picture

White Balance dE

0.16

0.24

Color dE

1.00

1.07

Gamma

2.20

Color Temperature

6,512 K

6,529 K

White Balance Calibration

22 point

20 point

Color Calibration

Yes

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Gray Uniformity

8.5

7.1

50% Uniformity Picture

50% Std. Dev.

1.526%

2.967%

50% DSE

0.135%

0.218%

5% Uniformity Picture

5% Std. Dev.

0.401%

0.680%

5% DSE

0.106%

0.102%

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Black Uniformity

9.7

Black Uniformity Picture With Preferred Local Dimming

Std. Dev.

N/A

0.211%

Native Black Uniformity Picture

Native Std. Dev.

0.416%

0.737%

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Viewing Angle

8.4

7.0

Viewing Angle Video

Chroma Graph

Color Washout

48°

24°

Hue Graph

Color Shift

32°

49°

Lightness Graph

Brightness Loss

62°

44°

Black Level Raise

70°

Gamma Shift

57°

23°

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Reflections

9.3

9.2

Reflections Picture

Average Room Off Picture

Bright Room Off Picture

Screen Finish

Glossy

Total Reflections

1.5%

1.7%

Indirect Reflections

0.4%

0.9%

Calculated Direct Reflections

1.1%

0.8%

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Local Dimming In Game Mode

LD Video, Moving Object

LD Video, Real Content

LD Video, Real Content Side View

Local Dimming

Backlight

No Backlight

Show text

HDR Native Gradient

8.7

7.8

HDR Gradient Picture

100% Black to 50% Gray

6.0

50% Gray to 100% White

8.0

100% Black to 50% Red

8.0

50% Red to 100% Red

100% Black to 50% Green

8.0

50% Green to 100% Green

6.0

100% Black to 50% Blue

50% Blue to 100% Blue

6.0

Color Depth

10 Bit

Red (Std. Dev.)

0.083

Green (Std. Dev.)

0.105

Blue (Std. Dev.)

0.092

Gray (Std. Dev.)

0.081

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Low-Quality Content Smoothing

6.3

Low-Quality Content Smoothing Picture

Smoothing

6.0

Detail Preservation

7.0

Upscaling: Sharpness Processing

8.0

7.0

Sharpness Picture - 480p

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Pixels

Pixels Picture

Subpixel Layout

BGR

Type

OLED

LED

Sub-Type

WOLED

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720p Input

8.0

720p Picture

Show text

1080p Input

9.0

1080p Picture

Show text

4k Input

4k Picture

Show text

8k Input

0.0

8k Picture

Show text

Temporary Image Retention

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%

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Permanent Burn-In Risk

2.0

Permanent Burn-In Risk

Yes

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Motion

Response Time

9.9

8.7

Motion Blur Picture

Response Time Chart

80% Response Time

0.3 ms

3.3 ms

100% Response Time

1.7 ms

8.9 ms

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Flicker-Free

9.9

Backlight chart

Flicker-Free

PWM Dimming Frequency

0 Hz

960 Hz

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Black Frame Insertion (BFI)

BFI Picture

BFI Frequency Picture

Optional BFI

Yes

Min Flicker For 60 fps

60 Hz

60Hz For 60 fps

Yes

120Hz For 120 fps

Yes

Min Flicker for 60 fps in Game Mode

60 Hz

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Motion Interpolation

Motion Interpolation (30 fps) Picture

Motion Interpolation (30 fps)

Yes

Motion Interpolation (60 fps) Picture

Motion Interpolation (60 fps)

Yes

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Stutter

4.9

6.5

Frame Hold Time @ 24 fps

39.9 ms

32.8 ms

Frame Hold Time @ 60 fps

14.9 ms

7.8 ms

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24p Judder

Judder-Free 24p

Yes

Judder-Free 24p via 60p

Yes

Judder-Free 24p via 60i

Yes

Judder-Free 24p via Native Apps

Yes

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Variable Refresh Rate

9.4

Native Refresh Rate

120 Hz

Variable Refresh Rate

Yes

HDMI Forum VRR

Yes

FreeSync

Yes

G-SYNC Compatible

Yes (NVIDIA Certified)

Yes

4k VRR Maximum

120 Hz

4k VRR Minimum

< 20 Hz

1080p VRR Maximum

120 Hz

1080p VRR Minimum

< 20 Hz

1440p VRR Maximum

120 Hz

1440p VRR Minimum

< 20 Hz

VRR + Local Dimming

Yes

VRR Supported Connectors

HDMI

Show text

Inputs

Input Lag

9.5

9.7

1080p @ 60Hz

13.6 ms

10.1 ms

1080p @ 60Hz Outside Game Mode

97.0 ms

76.8 ms

1080p @ 120Hz

6.9 ms

5.7 ms

1080p @ 144Hz

N/A

1440p @ 60Hz

13.8 ms

10.0 ms

1440p @ 120Hz

6.9 ms

5.9 ms

1440p @ 144Hz

N/A

4k @ 60Hz

13.6 ms

9.8 ms

4k @ 60Hz + 10-Bit HDR

13.5 ms

9.7 ms

4k @ 60Hz @ 4:4:4

13.6 ms

9.8 ms

4k @ 60Hz Outside Game Mode

97.0 ms

76.6 ms

4k @ 60Hz With Interpolation

92.9 ms

20.8 ms

4k @ 120Hz

6.7 ms

5.3 ms

4k @ 144Hz

N/A

8k @ 60Hz

N/A

1080p with Variable Refresh Rate

5.9 ms

1440p with VRR

6.2 ms

4k with VRR

5.9 ms

8k with VRR

N/A

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Supported Resolutions

9.6

Resolution

480p @ 59.94Hz (Widescreen)

Yes

720p @ 59.94Hz

Yes

1080p @ 60Hz @ 4:4:4

Yes

1080p @ 120Hz

Yes (native support)

Yes

1080p @ 144Hz

1440p @ 60Hz

Yes (forced resolution required)

Yes

1440p @ 120Hz

Yes (native support)

Yes

1440p @ 144Hz

4k @ 60Hz

Yes

4k @ 60Hz @ 4:4:4

Yes

4k @ 120Hz

Yes (native support)

Yes

4k @ 120Hz @ 4:4:4

Yes

4k @ 144Hz

8k @ 30Hz or 24Hz

8k @ 60Hz

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PS5 Compatibility

PS5 Screenshot

Auto Low Latency Mode (ALLM)

Yes

4k @ 120Hz

Yes

1440p @ 120Hz

PS5 can't do 1440p

PS5 doesn't output 1440p

1080p @ 120Hz

Yes

HDR

Yes

Xbox Series X Screenshot

VRR

PS5 can't do VRR yet

Yes

PS5, 4k @ 120Hz + HDR

Yes

PS5, 4k @ 60Hz + HDR

Yes

Xbox Series X, 4k @ 120Hz + HDR

Yes

Xbox Series X, 4k @ 120Hz

Yes

Xbox Series X, 4k @ 60Hz + HDR

Yes

Xbox Series X, 1440p @ 120Hz

Yes

Xbox Series X, 1080p @ 120Hz

Yes

Xbox Series X, Variable Refresh Rate

Yes

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Xbox Series X|S Compatibility

Xbox Series X Screenshot

Auto Low Latency Mode (ALLM)

Yes

4k @ 120Hz

Yes

1440p @ 120Hz

Yes

1080p @ 120Hz

Yes

HDR

Yes

VRR

Yes

Inputs Specifications

HDR10

Yes

HDR10+

Yes

Dolby Vision

Yes

HLG

Yes

HDMI 2.0 Full Bandwidth

Yes (HDMI 1,2,3,4)

HDMI 2.1 Class Bandwidth

Yes (HDMI 1,2,3,4)

Yes (HDMI 4)

CEC

Yes

HDCP 2.2

Yes (HDMI 1,2,3,4)

ATSC Tuner

3.0 (NEXTGEN TV)

USB 3.0

Variable Analog Audio Out

Yes

Wi-Fi Support

Yes (2.4 GHz, 5 GHz)

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Input Photos

Side Inputs Picture

Rear Inputs Picture

Total Inputs

HDMI

USB

Digital Optical Audio Out

Analog Audio Out 3.5mm

Analog Audio Out RCA

Component In

Composite In

1 (incl. adapter)

Tuner (Cable/Ant)

Ethernet

DisplayPort

IR In

SD/SDHC

Show text

Audio Passthrough

ARC/eARC Port

Yes

eARC

eARC: Dolby Atmos Over Dolby Digital Plus

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 2)

eARC: DTS:X Over DTS-HD MA

eARC: DTS-HD Master Audio 7.1

eARC: LPCM Channels (Bitstream)

7.1

ARC: Dolby Digital 5.1

Yes

ARC: DTS 5.1

Optical: Dolby Digital 5.1

Yes

Optical: DTS 5.1

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Sound Quality

Frequency Response

7.6

6.9

Frequency Response

Low-Frequency Extension

63.50 Hz

95.14 Hz

Std. Dev. @ 70

2.12 dB

3.58 dB

Std. Dev. @ 80

2.12 dB

3.54 dB

Std. Dev. @ Max

5.18 dB

5.58 dB

Max

91.2 dB SPL

92.9 dB SPL

Dynamic Range Compression

5.62 dB

5.28 dB

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Distortion

7.0

7.7

Total Harmonic Distortion

Weighted THD @ 80

0.085

0.129

Weighted THD @ Max

0.519

0.624

IMD @ 80

2.00%

0.41%

IMD @ Max

10.89%

1.18%

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Smart Features

Interface

8.5

Smart TV Picture

Smart OS

webOS

Tizen

Version

5.0

2021

Ease of Use

Easy

Smoothness

Average

Very Smooth

Time Taken to Select YouTube

2 s

Time Taken to Change Backlight

7 s

5 s

Advanced Options

Many

Show text

Ad-Free

0.0

Ads Picture

Yes

Opt-out

Opt-out of Suggested Content

Show text

Apps and Features

8.0

8.5

Apps Picture

App Selection

Great

App Smoothness

Average

Very Smooth

Cast Capable

Yes

USB Drive Playback

Yes

USB Drive HDR Playback

Yes

HDR in Netflix

Yes

HDR in YouTube

Yes

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Remote

9.0

8.5

Remote Picture

Size

Large

Small

Voice Control

Many Features

CEC Menu Control

Yes

Other Smart Features

Yes

Remote App

LG TV Plus

Samsung SmartThings

Show text

TV Controls

Controls Picture

Show text

In The Box

In The Box Picture

Show text

Misc

Power Consumption

75 W

53 W

Power Consumption (Max)

178 W

179 W

Firmware

03.00.45

1054

Check Price

Searching

Finding store

43"

QN43QN90AAFXZA

48"

OLED48CXPUB

50"

QN50QN90AAFXZA

55"

OLED55CXPUA

55"

QN55QN90AAFXZA

65"

OLED65CXPUA

65"

QN65QN90AAFXZA

75"

QN75QN90AAFXZA

77"

OLED77CXPUA

85"

QN85QN90AAFXZA

98"

QN98QN90AAFXZA