LG 45GX950A-B vs C5 42 OLED

Which Monitor Is Better?

Products

LG 45GX950A-B
LG C5 42 OLED

Tested using Methodology v2.1.1

Updated Nov 07, 2025 02:17 PM

SEE PRICE
Amazon.com

Tested using Methodology v2.1.1

Updated Nov 07, 2025 02:10 PM

SEE PRICE
Amazon.com
  1. Recommended in 1 article:
  2. 34-49 Inch

Our Verdict

LG 45GX950A-B

LG C5 42 OLED

The LG C5 42 OLED and the LG 45GX950A-B are both large OLED displays with a few differences. The C5 is a small TV that's popular to use as a monitor, so it has many features that are typical of TVs, including a built-in smart system, eARC/ARC audio passthrough, and a processor. The 45GX950A-B has more typical monitor features, like a Dual-Mode that switches its native 5k2k resolution and 165Hz refresh rate to a 1080p resolution and 330Hz refresh rate. Although they both have WOLED panels, there are a few differences, as the C5 gets brighter in HDR, while the 45GX950A-B has a dedicated sRGB mode that results in better accuracy before calibration. Overall, the C5 is the better choice if you want a small TV that you can use as a monitor, while the 45GX950A-B is the better choice if you want an ultrawide that you're going to use more like a typical monitor. 

0 

Variants

  • 45GX950A-B (45")
  • OLED42C5PUA (42")

Check Price

45"
45GX950A-B
SEE PRICE
Amazon.com
42"
OLED42C5PUA
SEE PRICE
Amazon.com
45"
45GX950A-B
SEE PRICE
BestBuy.com
42"
OLED42C5PUA
SEE PRICE
BestBuy.com
45"
45GX950A-B
B&H
42"
OLED42C5PUA
SEE PRICE
Walmart.com
45"
45GX950A-B
Walmart.com
42"
OLED42C5PUA
SEE PRICE
B&H
45"
45GX950A-B
LG.com
42"
OLED42C5PUA
LG.com

Main Differences for
PC Gaming

Threshold 

0.10

PC Gaming 

9.0
8.8

Refresh Rate 
 

8.3
7.4

Full Comparison

Design

Style 
 

Design Picture  

Curved 
 

Yes
No

Curve Radius 
 

800R
Not Curved
Show Text 

Accelerated Longevity Test 
 

Uniformity Pictures  

Longevity Graph  

Build Quality 
 

8.5
9.0

Build Quality Picture  

Show Text 

Ergonomics 
 

5.9
0.8

Ergonomics Picture  

Back Picture  

Height Adjustment 
 

4.7" (11.9 cm)
0.0" (0.0 cm)

Min Height To Top Of Panel 
 

21.3" (54.2 cm)
22.4" (56.8 cm)

Tilt Range 
 

-15° to 10°
No Tilt

Rotate Portrait/Landscape 
 

No
No

Swivel Range 
 

-10° to 10°
No swivel

Wall Mount 
 

VESA 100x100
VESA 300x200
Show Text 

Stand 
 

Stand Picture  

Thickness Picture  

Base Width 
 

11.7" (29.7 cm)
28.2" (71.6 cm)

Base Depth 
 

10.5" (26.7 cm)
6.7" (17.1 cm)

Thickness (With Display) 
 

12.4" (31.5 cm)
3.9" (10.0 cm)

Weight (With Display) 
 

30.7 lbs (13.9 kg)
22.3 lbs (10.1 kg)
Show Text 

Display 
 

Display Picture  

Size 
 

45"
42"

Housing Width 
 

39.2" (99.5 cm)
36.7" (93.2 cm)

Housing Height 
 

18.1" (46.0 cm)
21.3" (54.0 cm)

Thickness (Without Stand) 
 

8.1" (20.5 cm)
1.5" (3.9 cm)

Weight (Without Stand) 
 

19.9 lbs (9.0 kg)
21.6 lbs (9.8 kg)

Borders Size (Bezels)  
 

0.4" (1.0 cm)
0.3" (0.8 cm)
Show Text 

Controls 
 

Controls Picture  

Show Text 

In The Box 
 

In The Box Picture  

Power Supply 
 

External Brick
Internal
Show Text 
Picture Quality

Contrast 
 

10
10

Checkerboard Picture  

Native Contrast 
 

Inf : 1
Inf : 1

Contrast With Local Dimming 
 

Inf : 1
Inf : 1
Show Text 

Local Dimming 
 

10
10

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

No Backlight
No Backlight
Show Text 

SDR Brightness 
 

7.2
7.1

Real Scene 
 

246 cd/m²
247 cd/m²

Peak 2% Window 
 

379 cd/m²
352 cd/m²

Peak 10% Window 
 

435 cd/m²
354 cd/m²

Peak 25% Window 
 

339 cd/m²
342 cd/m²

Peak 50% Window 
 

292 cd/m²
330 cd/m²

Peak 100% Window 
 

270 cd/m²
234 cd/m²

Sustained 2% Window 
 

375 cd/m²
349 cd/m²

Sustained 10% Window 
 

429 cd/m²
350 cd/m²

Sustained 25% Window 
 

337 cd/m²
339 cd/m²

Sustained 50% Window 
 

291 cd/m²
328 cd/m²

Sustained 100% Window 
 

269 cd/m²
182 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.029
0.026

Minimum Brightness 
 

15 cd/m²
40 cd/m²
Show Text 

HDR Brightness 
 

7.2
7.8

EOTF  

VESA DisplayHDR Certification 
 

DisplayHDR TRUE BLACK 400
No Certification

Real Scene 
 

467 cd/m²
727 cd/m²

Peak 2% Window 
 

1,144 cd/m²
781 cd/m²

Peak 10% Window 
 

766 cd/m²
780 cd/m²

Peak 25% Window 
 

469 cd/m²
528 cd/m²

Peak 50% Window 
 

346 cd/m²
300 cd/m²

Peak 100% Window 
 

285 cd/m²
148 cd/m²

Sustained 2% Window 
 

1,091 cd/m²
774 cd/m²

Sustained 10% Window 
 

752 cd/m²
769 cd/m²

Sustained 25% Window 
 

466 cd/m²
509 cd/m²

Sustained 50% Window 
 

344 cd/m²
299 cd/m²

Sustained 100% Window 
 

284 cd/m²
145 cd/m²

Automatic Brightness Limiting (ABL) 
 

0.079
0.103
Show Text 

Gray Uniformity 
 

8.6
8.7

50% Uniformity Picture  

50% Std. Dev. 
 

1.364%
1.381%

50% DSE 
 

0.129%
0.125%
Show Text 

Black Uniformity 
 

10
10

Native Black Uniformity Picture  

Native Std. Dev. 
 

0.160%
0.214%

Black Uniformity Picture With Local Dimming  

Std. Dev. w/ L.D. 
 

N/A
N/A
Show Text 

Color Accuracy (Pre-Calibration) 
 

9.1
8.5

Pre Calibration Picture  

Pre Gamma Curve Picture  

Pre Color Picture  

Picture Mode 
 

sRGB
Game Optimizer

sRGB Gamut Area xy 
 

99.9%
103.7%

White Balance dE (Avg.) 
 

1.80
2.96

Color Temperature (Avg.) 
 

6,514 K
6,429 K

Gamma (Avg.) 
 

2.13
2.26

Color dE (Avg.) 
 

1.72
2.12

Contrast Setting 
 

70
85

RGB Settings 
 

50-50-50
Warm 40

Gamma Setting 
 

Default
2.2

Brightness Setting 
 

90
80

Measured Brightness 
 

135 cd/m²
208 cd/m²

Brightness Locked 
 

No
No
Show Text 

Color Accuracy (Post-Calibration) 
 

9.5
9.6

Post Calibration Picture  

Post Gamma Curve Picture  

Post Color Picture  

Picture Mode 
 

Gamer 1
Game Optimizer

sRGB Gamut Area xy 
 

102.1%
99.2%

White Balance dE (Avg.) 
 

0.54
0.58

Color Temperature (Avg.) 
 

6,534 K
6,484 K

Gamma (Avg.) 
 

2.18
2.19

Color dE (Avg.) 
 

1.08
0.92

Contrast Setting 
 

70
85

RGB Settings 
 

50-50-50
High (1, 0, -1), Low (-9, 0, -3)

Gamma Setting 
 

Mode 2
2.2

Brightness Setting 
 

57
18

Measured Brightness 
 

100 cd/m²
101 cd/m²

ICC Profile 
 

Show Text 

SDR Color Gamut 
 

9.8
9.4

sRGB Color Gamut Picture  

sRGB Coverage xy 
 

100.0%
99.1%

sRGB Picture Mode 
 

Gamer 1
Game Optimizer

Adobe RGB Color Gamut Picture  

Adobe RGB Coverage xy 
 

94.4%
85.9%

Adobe RGB Picture Mode 
 

Gamer 1
Game Optimizer
Show Text 

HDR Color Gamut 
 

9.2
9.0

Wide Color Gamut 
 

Yes
Yes

DCI-P3 Color Gamut Picture  

DCI-P3 Coverage xy 
 

97.8%
96.7%

DCI-P3 Picture Mode 
 

Gamer 1
Game Optimizer

Rec. 2020 Color Gamut Picture  

Rec. 2020 Coverage xy 
 

70.9%
69.7%

Rec. 2020 Picture Mode 
 

Gamer 1
Game Optimizer
Show Text 

HDR Color Volume 
 

7.6
7.9

DCI-P3 Color Volume ITP Picture  

1,000 cd/m² DCI-P3 Coverage ICtCp 
 

64.6%
79.8%

DCI-P3 Picture Mode 
 

Gamer 1
Game Optimizer

Rec. 2020 Color Volume ITP Picture  

10,000 cd/m² Rec. 2020 Coverage ICtCp 
 

32.5%
34.4%

Rec. 2020 Picture Mode 
 

Gamer 1
Game Optimizer
Show Text 

Viewing Angle 
 

10
8.8

Viewing Angle Video  

Chroma Graph  

Color Washout From Left 
 

70°
50°

Color Washout From Right 
 

70°
53°

Hue Graph  

Color Shift From Left 
 

70°
32°

Color Shift From Right 
 

70°
38°

Lightness Graph  

Brightness Loss From Left 
 

70°
63°

Brightness Loss From Right 
 

70°
62°

Black Level Raise From Left 
 

70°
70°

Black Level Raise From Right 
 

70°
70°

Gamma Shift From Left 
 

70°
64°

Gamma Shift From Right 
 

70°
65°
Show Text 

Text Clarity 
 

8.0
7.0

ClearType On  

ClearType Off  

Pixel Type 
 

OLED
OLED

Pixels  

Subpixel Layout 
 

RGWB
RWBG
Show Text 

Direct Reflections 
 

8.2
5.5

Ring Light Picture  

Direct Reflections Graph  

See details
See details

Peak Direct Reflection Intensity 
 

15.4%
46.5%

Screen Finish 
 

Matte
Glossy
Show Text 

Ambient Black Level Raise 
 

8.0
9.2

Black Level Raise Picture  

Ambient Black Level Raise Graph  

See details
See details

Black Luminance @ 0 lx 
 

0.00 cd/m²
0.00 cd/m²

Black Luminance @ 1000 lx 
 

0.97 cd/m²
0.28 cd/m²
Show Text 

Total Reflected Light 
 

9.0
8.8

Bright Room Off Picture  

Total Reflection Ring Light Picture  

Total Reflected Light Intensity 
 

5,513% ⋅ pixel
7,817% ⋅ pixel

Diffraction Artifacts 
 

No
No
Show Text 

Gradient 
 

9.8
9.6

Gradient Picture  

Color Depth 
 

10 Bit
10 Bit
Show Text 
Motion

Refresh Rate 
 

8.3
7.4

Native Refresh Rate 
 

165 Hz
120 Hz

Max Refresh Rate 
 

330 Hz
144 Hz

Max Refresh Rate Over DP 
 

165 Hz
N/A

Max Refresh Rate Over HDMI 
 

165 Hz
144 Hz

Max Refresh Rate Over DP @ 10-bit 
 

165 Hz
N/A

Max Refresh Rate Over HDMI @ 10-Bit 
 

165 Hz
144 Hz

DSC Toggle 
 

No
No

DSC Off Max Refresh Rate Over DP 
 

N/A
N/A

DSC Off Max Refresh Rate Over HDMI 
 

N/A
N/A
Show Text 

Variable Refresh Rate (VRR) 
 

Variable Refresh Rate 
 

Yes
Yes

FreeSync 
 

Yes
Compatible (Tested)

G-SYNC 
 

Compatible (NVIDIA Certified)
Compatible (NVIDIA Certified)

VRR Maximum 
 

330 Hz
144 Hz

VRR Minimum 
 

< 20 Hz
< 20 Hz

VRR Supported Connectors 
 

DisplayPort, HDMI
HDMI
Show Text 

VRR Motion Performance 
 

9.8
9.8

Pursuit Photo VRR  

OD Mode CAD Comparison  

See details
See details

Recommended VRR OD Setting 
 

No OD Mode
No OD Mode

Variable Overdrive Advertised 
 

No
No

Avg. CAD 
 

26
15

Best CAD 
 

26
14

Worst CAD 
 

27
15
Show Text 

Refresh Rate Compliance 
 

9.3
9.7

Fast GTG Sequence  

See details
See details

VRR Compliance  

See details
See details

Compliance @ Max Hz 
 

86%
94%

Compliance @ 120 FPS 
 

88%
95%

Compliance @ 60 FPS 
 

92%
96%
Show Text 

CAD @ Max Refresh Rate 
 

9.8
9.9

Pursuit Photo At Max Refresh  

CAD Heatmap At Max Refresh  

OD Transition Max Refresh Rate 
 

od-transition-max-refresh-rate-dualmode-0-31
OD dualmode
0 to 31
od-transition-max-refresh-rate-noodmode-0-31
OD noodmode
0 to 31

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

Avg. CAD 
 

26
15

Best 10% CAD 
 

16
6

Worst 10% CAD 
 

37
35
Show Text 

Response Time @ Max Refresh Rate 
 

First Response Time 
 

0.6 ms
0.3 ms

Total Response Time 
 

0.6 ms
1.3 ms

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

RGB Overshoot 
 

0 RGB
2 RGB

Worst 10% RGB Overshoot 
 

0 RGB
10 RGB

Worst 10% First Response Time 
 

0.9 ms
1.5 ms

Worst 10% Total Response Time 
 

0.9 ms
6.9 ms

Heatmap First Response  

Heatmap Total Response  

Heatmap RGB Overshoot  

Show Text 

CAD @ 120Hz 
 

9.8
9.9

Pursuit Photo 120Hz  

CAD Heatmap 120Hz  

OD Transition 120Hz 
 

od-transition-120-dualmode-0-31
OD dualmode
0 to 31
od-transition-120-noodmode-0-31
OD noodmode
0 to 31

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

Avg. CAD 
 

27
14

Best 10% CAD 
 

17
6

Worst 10% CAD 
 

38
31
Show Text 

Response Time @ 120Hz 
 

Worst 10% First Response Time 
 

0.7 ms
1.3 ms

RGB Overshoot 
 

0 RGB
1 RGB

Total Response Time 
 

0.6 ms
1.1 ms

First Response Time 
 

0.6 ms
0.3 ms

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

Worst 10% Total Response Time 
 

0.7 ms
7.7 ms

Worst 10% RGB Overshoot 
 

0 RGB
9 RGB

120Hz First Response Heatmap  

120Hz Total Response Heatmap  

120Hz Heatmap RGB Overshoot  

Show Text 

CAD @ 60Hz 
 

9.8
9.9

Pursuit Photo 60Hz  

CAD Heatmap 60Hz  

OD Transition 60Hz 
 

od-transition-60-dualmode-0-31
OD dualmode
0 to 31
od-transition-60-noodmode-0-31
OD noodmode
0 to 31

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

Avg. CAD 
 

24
15

Best 10% CAD 
 

11
7

Worst 10% CAD 
 

44
40
Show Text 

Response Time @ 60Hz 
 

Recommended Overdrive Setting 
 

No OD Mode
No OD Mode

First Response Time 
 

0.5 ms
0.4 ms

Total Response Time 
 

2.1 ms
1.7 ms

RGB Overshoot 
 

0 RGB
1 RGB

Worst 10% Total Response Time 
 

16.9 ms
13.4 ms

Worst 10% First Response Time 
 

0.7 ms
2.0 ms

Worst 10% RGB Overshoot 
 

5 RGB
10 RGB

60Hz First Response Heatmap  

60Hz Total Response Heatmap  

60Hz RGB Overshoot Heatmap  

Show Text 

Backlight Strobing (BFI) 
 

Backlight Strobing Picture  

Backlight Strobing Frequency Picture  

Backlight Strobing (BFI) 
 

No BFI
Yes

Maximum Frequency 
 

N/A
60 Hz

Minimum Frequency 
 

N/A
60 Hz

Longest Pulse Width Brightness 
 

N/A
120 cd/m²

Shortest Pulse Width Brightness 
 

N/A
120 cd/m²

Pulse Width Control 
 

No BFI
No

Pulse Phase Control 
 

No BFI
No

Pulse Amplitude Control 
 

No BFI
Yes

VRR At The Same Time 
 

No BFI
No
Show Text 

VRR Flicker 
 

5.9
6.0

VRR Flicker Video  

VRR Flicker Graph  

Dark Gray Flicker 
 

4.9 RGB
3.8 RGB

Middle Gray Flicker 
 

0.4 RGB
1.4 RGB

Light Gray Flicker 
 

0.6 RGB
1.3 RGB
Show Text 

Image Flicker 
 

10
10

Backlight Picture  

Flicker-Free 
 

No
No

PWM Dimming Frequency 
 

0 Hz
0 Hz
Show Text 
Inputs

Input Lag 
 

9.0
8.5

Native Resolution @ Max Hz 
 

3.7 ms
4.6 ms

Native Resolution @ 120Hz 
 

4.9 ms
5.3 ms

Native Resolution @ 60Hz 
 

9.2 ms
9.9 ms

Backlight Strobing (BFI) 
 

N/A
30.5 ms
Show Text 

Resolution 
 

8.3
7.8

Native Resolution 
 

5120 x 2160
3840 x 2160

Aspect Ratio 
 

21:9
16:9

Megapixels 
 

11.1 MP
8.3 MP

Pixel Density 
 

125 PPI
105 PPI
Show Text 

PS5 Compatibility 
 

10
10

PS5 Compatibility Photo  

PS5 Compatibility Table  

4k @ 120Hz 
 

Yes
Yes

4k @ 60Hz 
 

Yes
Yes

1440p @ 120Hz 
 

Yes
Yes

1440p @ 60Hz 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

1080p @ 60Hz 
 

Yes
Yes
Show Text 

Xbox Series X|S Compatibility 
 

9.7
10

XSX Compatibility Photo  

XSX Compatibility Table  

4k @ 120Hz 
 

Yes
Yes

4k @ 60Hz 
 

Yes
Yes

1440p @ 120Hz 
 

Yes
Yes

1440p @ 60Hz 
 

Yes
Yes

1080p @ 120Hz 
 

Yes
Yes

1080p @ 60Hz 
 

Yes
Yes
Show Text 

Inputs 
 

Inputs 1  

Inputs 2  

DisplayPort 
 

1 (DP 2.1)
No

DisplayPort Transmission Bandwidth 
 

UHBR10 (40.00 Gbps)
No DisplayPort 2.1

Mini DisplayPort 
 

No
No

HDMI 
 

2 (HDMI 2.1)
4 (HDMI 2.1)

HDMI 2.1 Bandwidth 
 

48Gbps (FRL 12x4)
48Gbps (FRL 12x4)

Daisy Chaining 
 

No
No

3.5mm Audio Out 
 

Yes
Yes

Ethernet 
 

No
Yes

HDR10 
 

Yes
Yes

Dolby Vision 
 

No
Yes
Show Text 

USB 
 

USB-A Ports 
 

2
3

USB-A Rated Speed 
 

5Gbps (USB 3.2 Gen 1)
480Mbps (USB 2.0)

USB-B Upstream Port 
 

No
No

USB-C Ports 
 

1
0

USB-C Upstream 
 

Yes
No USB-C Ports

USB-C Rated Speed 
 

5Gbps (USB 3.2 Gen 1)
No USB-C Ports

USB-C Power Delivery 
 

90W
No USB-C Ports

USB-C DisplayPort Alt Mode 
 

Yes
No USB-C Ports

Thunderbolt 
 

No
No
Show Text 

macOS Compatibility 
 

macOS Screenshot  

Show Text 
Features

Additional Features 
 

Speakers 
 

Yes
Yes

RGB Illumination 
 

Presets
No

Multiple Input Display 
 

PIP + PBP
PBP

KVM Switch 
 

No
No

Smart OS 
 

No
Yes
Show Text 

On-Screen Display (OSD) 
 

OSD Picture  

Show Text 

Check Price

45"
45GX950A-B
SEE PRICE
Amazon.com
42"
OLED42C5PUA
SEE PRICE
Amazon.com
45"
45GX950A-B
SEE PRICE
BestBuy.com
42"
OLED42C5PUA
SEE PRICE
BestBuy.com
45"
45GX950A-B
B&H
42"
OLED42C5PUA
SEE PRICE
Walmart.com
45"
45GX950A-B
Walmart.com
42"
OLED42C5PUA
SEE PRICE
B&H
45"
45GX950A-B
LG.com
42"
OLED42C5PUA
LG.com

LG 45GX950A-B

LG C5 42 OLED

Comments

  1. Comparison

LG 45GX950A-B vs LG C5 42 OLED: Main Discussion

What do you think of these products? Let us know below.


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
No comments yet, refresh to see new ones