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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Stand
    3. Ergonomics
    4. Back
    5. Borders
    6. Thickness
    7. Build Quality
  5. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Horizontal Viewing Angle
    6. Vertical Viewing Angle
    7. Gray Uniformity
    8. Black Uniformity
    9. Pre Calibration
    10. Post Calibration
    11. SDR Color Gamut
    12. SDR Color Volume
    13. HDR Color Gamut
    14. HDR Color Volume
    15. Image Retention
    16. Gradient
    17. Color Bleed
    18. Reflections
    19. Text Clarity
  6. Motion
    1. Response Time @ Max Refresh Rate
    2. Response Time @ 60Hz
    3. Image Flicker
    4. Black Frame Insertion (BFI)
    5. Refresh Rate
  7. Inputs
    1. Input Lag
    2. Resolution And Size
    3. Inputs
    4. Total Inputs
  8. Features
    1. Additional Features
    2. On-Screen Display (OSD)
    3. Controls
    4. In The Box
  9. Comments

Dell U3818DW vs LG 38GL950G-B

Side-by-Side Comparison

Products

Dell U3818DW
LG 38GL950G-B

Tested using Methodology v1.1

Updated Dec 16, 2022 03:14 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated Sep 03, 2021 12:40 AM

SEE PRICE
Amazon.com
Dell U3818DW Picture
LG 38GL950G-B Picture

Variants

  • U3818DW (38")
  • 38GL950G-B (38")

Our Verdict

Dell U3818DW

LG 38GL950G-B

Although the LG 38GL950G-B and the Dell U3818DW share the same screen size, aspect ratio, and resolution, the LG performs significantly better than the Dell for most uses. The LG has an outstanding response time, high refresh rate, and it supports VRR. Also, the LG gets brighter, it has lower input lag, and it supports HDR. However, the Dell has better ergonomics, wider viewing angles, and a much better color accuracy.

0

Check Price

 

Main Differences for

Threshold 

0.10

Mixed Usage 

7.2
8.0

Refresh Rate 
 

5.9
9.2

Response Time @ Max Refresh Rate 
 

4.9
9.3

Ergonomics 
 

6.4
4.5

Response Time @ 60Hz 
 

4.9
9.3

Full Comparison

Design

Style  

Design Picture  

Dell U3818DW Design Picture
LG 38GL950G-B Design Picture

Size  

38"
38"

Curved  

Yes
Yes

Curve Radius  

2300R
2300R

Weight (without stand) 
 

19.6 lbs (8.9 kg)
16.5 lbs (7.5 kg)

Weight (with stand) 
 

25.4 lbs (11.5 kg)
21.8 lbs (9.9 kg)

Show text

Stand  

Stand Picture  

Dell U3818DW Stand Picture
LG 38GL950G-B Stand Picture

Width 
 

13.4" (34.0 cm)
18.9" (48.0 cm)

Depth 
 

8.9" (22.6 cm)
11.3" (28.7 cm)

Show text

Ergonomics 
 

6.4
4.5

Ergonomics Picture  

Dell U3818DW Ergonomics Picture
LG 38GL950G-B Ergonomics Picture

Height Adjustment 
 

4.7" (11.9 cm)
4.3" (11.0 cm)

Switch Portrait/Landscape  

No
No

Swivel Range  

-30° to 30°
No swivel

Tilt Range  

-20° to 5°
-15° to 5°

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Back  

Back Picture  

Dell U3818DW Back Picture
LG 38GL950G-B Back Picture

Wall Mount  

VESA 100x100
VESA 100x100

Show text

Borders  

Borders Picture  

Dell U3818DW Borders Picture
LG 38GL950G-B Borders Picture

Borders 
 

0.4" (1.0 cm)
0.4" (1.1 cm)

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Thickness  

Thickness Picture  

Dell U3818DW Thickness Picture
LG 38GL950G-B Thickness Picture

Thickness (with stand) 
 

6.5" (16.5 cm)
9.4" (24.0 cm)

Thickness (without stand) 
 

3.8" (9.7 cm)
4.6" (11.8 cm)

Show text

Build Quality 
 

8.0
7.5

Build Quality Picture  

Dell U3818DW Build Quality Picture
LG 38GL950G-B Build Quality Picture

Show text

Picture Quality

Contrast 
 

6.2
5.8

Checkerboard Picture  

Dell U3818DW Checkerboard Picture
LG 38GL950G-B Checkerboard Picture

Native Contrast 
 

1,133 : 1
917 : 1

Contrast With Local Dimming 
 

N/A
N/A

Show text

Local Dimming 
 

0.0
0.0

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

Edge
Edge

Show text

SDR Peak Brightness 
 

7.3
8.4

SDR Real Scene 
 

278 cd/m²
445 cd/m²

SDR Peak 2% Window 
 

302 cd/m²
464 cd/m²

SDR Peak 10% Window 
 

302 cd/m²
465 cd/m²

SDR Peak 25% Window 
 

302 cd/m²
466 cd/m²

SDR Peak 50% Window 
 

302 cd/m²
466 cd/m²

SDR Peak 100% Window 
 

302 cd/m²
466 cd/m²

SDR Sustained 2% Window 
 

301 cd/m²
464 cd/m²

SDR Sustained 10% Window 
 

302 cd/m²
465 cd/m²

SDR Sustained 25% Window 
 

302 cd/m²
466 cd/m²

SDR Sustained 50% Window 
 

302 cd/m²
466 cd/m²

SDR Sustained 100% Window 
 

302 cd/m²
466 cd/m²

SDR ABL 
 

0.000
0.000

Show text

HDR Peak Brightness 
 

0.0
7.2

HDR Real Scene 
 

N/A
482 cd/m²

HDR Peak 2% Window 
 

N/A
509 cd/m²

HDR Peak 10% Window 
 

N/A
510 cd/m²

HDR Peak 25% Window 
 

N/A
511 cd/m²

HDR Peak 50% Window 
 

N/A
512 cd/m²

HDR Peak 100% Window 
 

N/A
512 cd/m²

HDR Sustained 2% Window 
 

N/A
509 cd/m²

HDR Sustained 10% Window 
 

N/A
510 cd/m²

HDR Sustained 25% Window 
 

N/A
511 cd/m²

HDR Sustained 50% Window 
 

N/A
511 cd/m²

HDR Sustained 100% Window 
 

N/A
511 cd/m²

HDR ABL 
 

N/A
0.000

Show text

Horizontal Viewing Angle 
 

8.1
7.5

Horizontal Viewing Angle Video  

Horizontal Chroma Graph  

Dell U3818DW Horizontal Chroma Graph
LG 38GL950G-B Horizontal Chroma Graph

Color Washout From Left 
 

47°
42°

Color Washout From Right 
 

47°
43°

Horizontal Hue Graph  

Dell U3818DW Horizontal Hue Graph
LG 38GL950G-B Horizontal Hue Graph

Color Shift From Left 
 

53°
50°

Color Shift From Right 
 

55°
53°

Horizontal Lightness Graph  

Dell U3818DW Horizontal Lightness Graph
LG 38GL950G-B Horizontal Lightness Graph

Brightness Loss From Left 
 

51°
46°

Brightness Loss From Right 
 

51°
48°

Black Level Raise From Left 
 

70°
70°

Black Level Raise From Right 
 

40°
32°

Gamma Shift From Left 
 

46°
39°

Gamma Shift From Right 
 

56°
36°

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Vertical Viewing Angle 
 

7.4
7.2

Vertical Viewing Angle Video  

Vertical Chroma Graph  

Dell U3818DW Vertical Chroma Graph
LG 38GL950G-B Vertical Chroma Graph

Color Washout From Below 
 

34°
32°

Color Washout From Above 
 

35°
32°

Vertical Hue Graph  

Dell U3818DW Vertical Hue Graph
LG 38GL950G-B Vertical Hue Graph

Color Shift From Below 
 

40°
39°

Color Shift From Above 
 

43°
39°

Vertical Lightness Graph  

Dell U3818DW Vertical Lightness Graph
LG 38GL950G-B Vertical Lightness Graph

Brightness Loss From Below 
 

36°
34°

Brightness Loss From Above 
 

37°
34°

Black Level Raise From Below 
 

70°
70°

Black Level Raise From Above 
 

70°
70°

Gamma Shift From Below 
 

41°
44°

Gamma Shift From Above 
 

44°
39°

Show text

Gray Uniformity 
 

8.1
8.6

50% Uniformity Picture  

Dell U3818DW 50% Uniformity Picture
LG 38GL950G-B 50% Uniformity Picture

50% Std. Dev. 
 

3.831%
3.858%

50% DSE 
 

0.136%
0.101%

5% Uniformity Picture  

Dell U3818DW 5% Uniformity Picture
LG 38GL950G-B 5% Uniformity Picture

5% Std. Dev. 
 

0.474%
0.633%

5% DSE 
 

0.045%
0.039%

Show text

Black Uniformity 
 

5.8
6.3

Native Black Uniformity Picture  

Dell U3818DW Native Black Uniformity Picture
LG 38GL950G-B Native Black Uniformity Picture

Native Std. Dev. 
 

2.137%
1.798%

Black Uniformity Picture With Local Dimming  

Dell U3818DW Black Uniformity Picture With Local Dimming
LG 38GL950G-B Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

N/A
N/A

Show text

Pre Calibration 
 

9.0
8.4

Pre Calibration Picture  

Dell U3818DW Pre Calibration Picture
LG 38GL950G-B Pre Calibration Picture

Pre Gamma Curve Picture  

Dell U3818DW Pre Gamma Curve Picture
LG 38GL950G-B Pre Gamma Curve Picture

Pre Color Picture  

Dell U3818DW Pre Color Picture
LG 38GL950G-B Pre Color Picture

Picture Mode 
 

Standard
sRGB

Luminance 
 

242 cd/m²
202 cd/m²

Luminance Settings 
 

75
32

Contrast Setting 
 

75
70

RGB Controls 
 

100-100-100
Default

Gamma Setting 
 

Default
Default

Color Temperature 
 

6,593 K
6,311 K

White Balance dE 
 

1.67
2.41

Color dE 
 

1.32
1.86

Gamma 
 

2.20
2.13

Show text

Post Calibration 
 

9.6
9.8

Post Calibration Picture  

Dell U3818DW Post Calibration Picture
LG 38GL950G-B Post Calibration Picture

Post Gamma Curve Picture  

Dell U3818DW Post Gamma Curve Picture
LG 38GL950G-B Post Gamma Curve Picture

Post Color Picture  

Dell U3818DW Post Color Picture
LG 38GL950G-B Post Color Picture

Picture Mode 
 

Custom Color
Gamer 1

Luminance 
 

102 cd/m²
102 cd/m²

Luminance Settings 
 

23
10

Contrast Setting 
 

75
68

RGB Controls 
 

100-99-98
49-48-56

Gamma Setting 
 

Default
Mode 2

Color Temperature 
 

6,420 K
6,484 K

White Balance dE 
 

0.67
0.47

Color dE 
 

0.54
0.33

Gamma 
 

2.17
2.18

Show text

SDR Color Gamut 
 

8.9
9.3

Color Gamut sRGB Picture  

Dell U3818DW Color Gamut sRGB Picture
LG 38GL950G-B Color Gamut sRGB Picture

sRGB xy 
 

99.0%
99.4%

Color Gamut ARGB Picture  

Dell U3818DW Color Gamut ARGB Picture
LG 38GL950G-B Color Gamut ARGB Picture

Adobe RGB xy 
 

77.6%
86.1%

sRGB Picture Mode 
 

Custom Color
Gamer 1

Adobe RGB Picture Mode 
 

Custom Color
Gamer 1

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SDR Color Volume 
 

9.1
9.4

sRGB Color Volume ITP Picture  

Dell U3818DW sRGB Color Volume ITP Picture
LG 38GL950G-B sRGB Color Volume ITP Picture

sRGB In ICtCp 
 

97.8%
97.1%

Adobe RGB Color Volume ITP Picture  

Dell U3818DW Adobe RGB Color Volume ITP Picture
LG 38GL950G-B Adobe RGB Color Volume ITP Picture

Adobe RGB In ICtCp 
 

83.0%
90.1%

sRGB Picture Mode 
 

Custom Color
Gamer 1

Adobe RGB Picture Mode 
 

Custom Color
Gamer 1

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HDR Color Gamut 
 

0.0
7.7

Wide Color Gamut 
 

No
Yes

Color Gamut DCI-P3 Picture  

Dell U3818DW Color Gamut DCI-P3 Picture
LG 38GL950G-B Color Gamut DCI-P3 Picture

DCI P3 xy 
 

N/A
84.4%

Color Gamut Rec.2020 Picture  

Dell U3818DW Color Gamut Rec.2020 Picture
LG 38GL950G-B Color Gamut Rec.2020 Picture

Rec. 2020 xy 
 

N/A
69.3%

DCI P3 Picture Mode 
 

No HDR
Gamer 1

Rec. 2020 Picture Mode 
 

No HDR
Gamer 1

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HDR Color Volume 
 

0.0
7.4

P3 Color Volume ITP Picture  

Dell U3818DW P3 Color Volume ITP Picture
LG 38GL950G-B P3 Color Volume ITP Picture

DCI-P3 In ICtCp 
 

N/A
81.8%

2020 Color Volume ITP Picture  

Dell U3818DW 2020 Color Volume ITP Picture
LG 38GL950G-B 2020 Color Volume ITP Picture

Rec. 2020 In ICtCp 
 

N/A
65.1%

DCI P3 Picture Mode 
 

No HDR
Gamer 1

Rec. 2020 Picture Mode 
 

No HDR
Gamer 1

Show text

Image Retention 
 

10
10

Image Retention Picture  

Dell U3818DW Image Retention Picture
LG 38GL950G-B 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%
0.04%

IR After 8 Min Recovery 
 

0.00%
0.02%

IR After 10 Min Recovery 
 

0.00%
0.00%

Show text

Gradient 
 

9.4
9.8

Gradient Picture  

Dell U3818DW Gradient Picture
LG 38GL950G-B Gradient Picture

Color Depth 
 

10 Bit
10 Bit

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Color Bleed 
 

10
10

Color Bleed Horizontal  

Dell U3818DW Color Bleed Horizontal
LG 38GL950G-B Color Bleed Horizontal

Pixel Row Error 
 

0.000%
0.003%

Color Bleed Vertical  

Dell U3818DW Color Bleed Vertical
LG 38GL950G-B Color Bleed Vertical

Pixel Column Error 
 

0.001%
0.005%

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Reflections 
 

6.4
7.3

Average Room  

Dell U3818DW Average Room
LG 38GL950G-B Average Room

Average Room Off Picture  

Dell U3818DW Average Room Off Picture
LG 38GL950G-B Average Room Off Picture

Bright Room Off Picture  

Dell U3818DW Bright Room Off Picture
LG 38GL950G-B Bright Room Off Picture

Screen Finish 
 

Matte
Matte

Total Reflections 
 

7.5%
5.8%

Indirect Reflections 
 

4.3%
3.4%

Calculated Direct Reflections 
 

3.2%
2.3%

Show text

Text Clarity 
 

7.0
7.5

ClearType On  

Dell U3818DW ClearType On
LG 38GL950G-B ClearType On

Pixel Type 
 

IPS
IPS

ClearType Off  

Dell U3818DW ClearType Off
LG 38GL950G-B ClearType Off

Pixels  

Dell U3818DW Pixels
LG 38GL950G-B Pixels

Sub-Pixel Layout 
 

RGB
RGB

Show text

Motion

Response Time @ Max Refresh Rate 
 

4.9
9.3

Motion Blur Picture  

Dell U3818DW Motion Blur Picture
LG 38GL950G-B Motion Blur Picture

Response Time Table  

Dell U3818DW Response Time Table
LG 38GL950G-B Response Time Table

Best Overdrive Setting 
 

Normal
Normal

Rise / Fall Time 
 

6.6 ms
4.5 ms

Total Response Time 
 

26.0 ms
8.5 ms

Overshoot Error 
 

17.6%
0.0%

Dark Rise / Fall Time 
 

6.5 ms
5.0 ms

Dark Total Response Time 
 

25.3 ms
9.4 ms

Dark Overshoot Error 
 

18.7%
0.0%

Show text

Response Time @ 60Hz 
 

4.9
9.3

Motion Blur Picture  

Dell U3818DW Motion Blur Picture
LG 38GL950G-B Motion Blur Picture

Response Time Table  

Dell U3818DW Response Time Table
LG 38GL950G-B Response Time Table

Best Overdrive Setting 
 

Normal
Normal

Rise / Fall Time 
 

6.6 ms
4.5 ms

Total Response Time 
 

26 ms
8.5 ms

Overshoot Error 
 

17.6%
0%

Dark Rise / Fall Time 
 

6.5 ms
5.0 ms

Dark Total Response Time 
 

25.3 ms
8.6 ms

Dark Overshoot Error 
 

18.7%
0.0%

Show text

Image Flicker 
 

10
10

Backlight Picture  

Dell U3818DW Backlight Picture
LG 38GL950G-B Backlight Picture

Flicker-Free  

Yes
Yes

PWM Dimming Frequency 
 

0 Hz
0 Hz

Show text

Black Frame Insertion (BFI) 
 

0.0
0.0

Black Frame Insertion (BFI) 
 

No
No BFI

BFI Picture  

Dell U3818DW BFI Picture
LG 38GL950G-B BFI Picture

BFI Frequency Picture  

Dell U3818DW BFI Frequency Picture
LG 38GL950G-B BFI Frequency Picture

BFI Maximum Frequency 
 

N/A
N/A

BFI Minimum Frequency 
 

N/A
N/A

Show text

Refresh Rate 
 

5.9
9.2

Variable Refresh Rate 
 

No VRR
G-SYNC

Native 
 

60 Hz
144 Hz

Max Refresh Rate 
 

60 Hz
175 Hz

Variable Refresh Rate 
 

No
Yes

FreeSync 
 

No
Compatible (Tested)

G-SYNC 
 

No
Yes (Native)

VRR Maximum 
 

N/A
175 Hz

VRR Minimum 
 

No VRR
< 20 Hz

VRR Supported Connectors  

No VRR
DisplayPort

Show text

Inputs

Input Lag 
 

8.9
9.5

Native Resolution 
 

9.2 ms
3.7 ms

Native Resolution @ 60Hz 
 

9.2 ms
12.2 ms

Variable Refresh Rate 
 

N/A
4.7 ms

Variable Refresh Rate @ 60Hz 
 

N/A
14.0 ms

10 Bit HDR 
 

N/A
N/A

Black Frame Insertion (BFI) 
 

N/A
N/A

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Resolution And Size 
 

8.9
8.9

Native Resolution  

3840 x 1600
3840 x 1600

Aspect Ratio  

21:9
21:9

Megapixels  

6.1 MP
6.1 MP

Pixel Density 
 

111 PPI
111 PPI

Screen Diagonal  

37.5"
37.5"

Screen Area  

498 in²
498 in²

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Inputs  

Inputs 1  

Dell U3818DW Inputs 1
LG 38GL950G-B Inputs 1

Inputs 2  

Dell U3818DW Inputs 2
LG 38GL950G-B Inputs 2

Total Inputs  

DisplayPort  

1 (DP 1.2)
1 (DP 1.4)

Mini DisplayPort  

No
No

HDMI  

2 (HDMI 2.0)
1 (HDMI 2.0)

DVI  

No
No

VGA  

No
No

DisplayPort Out  

No
No

USB  

4 (USB 3.0)
2 (USB 3.0)

USB C  

1 (USB, USB PD, DP Alt Mode)
No

Analog Audio Out 3.5mm  

1
1

Microphone In 3.5mm  

No
No

Digital Optical Audio Out  

No
No

Analog Audio Out RCA  

No
No

Power Supply  

Internal
External Brick

Show text

Features

Additional Features 
 

RGB Illumination 
 

No
Controllable

Speakers 
 

Yes
No

HDR10  

No
Yes

Multiple Input Display 
 

PIP + PBP
PIP + PBP

Show text

On-Screen Display (OSD)  

OSD Picture  

Dell U3818DW OSD Picture
LG 38GL950G-B OSD Picture

Controls  

Controls Picture  

Dell U3818DW Controls Picture
LG 38GL950G-B Controls Picture

Show text

In The Box  

In The Box Picture  

Dell U3818DW In The Box Picture
LG 38GL950G-B In The Box Picture

Show text

Check Price

 

Dell U3818DW

LG 38GL950G-B

Comments

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