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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 U3417W vs Dell U3818DW

Side-by-Side Comparison

Products

Dell U3417W
Dell U3818DW

Tested using Methodology v1.0

Updated Mar 20, 2023 05:02 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated Dec 16, 2022 03:14 PM

SEE PRICE
Amazon.com
Dell U3417W Picture
Dell U3818DW Picture

Variants

  • U3417W (34")
  • U3818DW (38")

Our Verdict

Dell U3417W

Dell U3818DW

The Dell U3818DW is better than the Dell U3417W. The U3818DW has a larger, higher-resolution screen that allows you to see more of your project. The 2018 U3818DW has much-improved input lag, great for gaming, but it's slightly dimmer than the U3417W. The U3417W has a DisplayPort out, so it can be daisy-chained to a second monitor. The U3818DW doesn't have this feature.

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Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 

7.4
7.2

Motion Blur 
 

8.4
4.9

Vertical Viewing Angle 
 

8.5
7.4

Reflections 
 

8.0
6.4

Full Comparison

Design

Style  

Design Picture  

Dell U3417W Design Picture
Dell U3818DW Design Picture

Size  

34"
38"

Curved  

Yes
Yes

Curve Radius  

1900R
2300R

Weight (without stand) 
 

16.8 lbs (7.6 kg)
19.6 lbs (8.9 kg)

Weight (with stand) 
 

22.0 lbs (10.0 kg)
25.4 lbs (11.5 kg)
Show Text 

Stand  

Stand Picture  

Dell U3417W Stand Picture
Dell U3818DW Stand Picture

Width 
 

13.4" (34.0 cm)
13.4" (34.0 cm)

Depth 
 

8.9" (22.6 cm)
8.9" (22.6 cm)
Show Text 

Ergonomics 
 

6.1
6.4

Ergonomics Picture  

Dell U3417W Ergonomics Picture
Dell U3818DW Ergonomics Picture

Height Adjustment 
 

4.4" (11.2 cm)
4.7" (11.9 cm)

Switch Portrait/Landscape  

No
No

Swivel Range  

-30° to 30°
-30° to 30°

Tilt Range  

-20° to 5°
-20° to 5°
Show Text 

Back  

Back Picture  

Dell U3417W Back Picture
Dell U3818DW Back Picture

Wall Mount  

VESA 100x100
VESA 100x100
Show Text 

Borders  

Borders Picture  

Dell U3417W Borders Picture
Dell U3818DW Borders Picture

Borders 
 

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

Thickness  

Thickness Picture  

Dell U3417W Thickness Picture
Dell U3818DW Thickness Picture

Thickness (with stand) 
 

7.9" (20.1 cm)
6.5" (16.5 cm)

Thickness (without stand) 
 

4.0" (10.2 cm)
3.8" (9.7 cm)
Show Text 

Build Quality 
 

8.0
8.0

Build Quality Picture  

Dell U3417W Build Quality Picture
Dell U3818DW Build Quality Picture
Show Text 
Picture Quality

Contrast 
 

5.8
6.2

Checkerboard Picture  

Dell U3417W Checkerboard Picture
Dell U3818DW Checkerboard Picture

LCD Type 
 

IPS
IPS

Native Contrast 
 

908 : 1
1,133 : 1

Contrast With Local Dimming 
 

N/A
N/A
Show Text 

Local Dimming 
 

0.0
0.0

Local Dimming Video  

Local Dimming Video  

Local Dimming 
 

No
No

Backlight 
 

Edge
Edge
Show Text 

SDR Peak Brightness 
 

8.0
7.3

SDR Real Scene 
 

349 cd/m²
278 cd/m²

SDR Peak 2% Window 
 

366 cd/m²
302 cd/m²

SDR Peak 10% Window 
 

364 cd/m²
302 cd/m²

SDR Peak 25% Window 
 

361 cd/m²
302 cd/m²

SDR Peak 50% Window 
 

359 cd/m²
302 cd/m²

SDR Peak 100% Window 
 

357 cd/m²
302 cd/m²

SDR Sustained 2% Window 
 

365 cd/m²
301 cd/m²

SDR Sustained 10% Window 
 

361 cd/m²
302 cd/m²

SDR Sustained 25% Window 
 

358 cd/m²
302 cd/m²

SDR Sustained 50% Window 
 

356 cd/m²
302 cd/m²

SDR Sustained 100% Window 
 

354 cd/m²
302 cd/m²

SDR ABL 
 

0.002
0.000
Show Text 

HDR Peak Brightness 
 

0.0
0.0

HDR Real Scene 
 

N/A
N/A

HDR Peak 2% Window 
 

N/A
N/A

HDR Peak 10% Window 
 

N/A
N/A

HDR Peak 25% Window 
 

N/A
N/A

HDR Peak 50% Window 
 

N/A
N/A

HDR Peak 100% Window 
 

N/A
N/A

HDR Sustained 2% Window 
 

N/A
N/A

HDR Sustained 10% Window 
 

N/A
N/A

HDR Sustained 25% Window 
 

N/A
N/A

HDR Sustained 50% Window 
 

N/A
N/A

HDR Sustained 100% Window 
 

N/A
N/A

HDR ABL 
 

N/A
N/A
Show Text 

Horizontal Viewing Angle 
 

7.5
8.1

Horizontal Viewing Angle Video  

Horizontal Chroma Graph  

Dell U3818DW Horizontal Chroma Graph

Color Washout From Left 
 

47°

Color Washout From Right 
 

47°

Horizontal Color Shift Picture  

Dell U3417W Horizontal Color Shift Picture

Horizontal Hue Graph  

Dell U3818DW Horizontal Hue Graph

Color Shift From Left 
 

44°
53°

Color Shift From Right 
 

40°
55°

Horizontal Brightness Picture  

Dell U3417W Horizontal Brightness Picture

Horizontal Black Level Picture  

Dell U3417W Horizontal Black Level Picture

Horizontal Lightness Graph  

Dell U3818DW Horizontal Lightness Graph

Brightness Loss From Left 
 

51°
51°

Brightness Loss From Right 
 

50°
51°

Black Level Raise From Left 
 

75°
70°

Black Level Raise From Right 
 

75°
40°

Curve Radius  

1,900R

Gamma Shift From Left 
 

46°

Gamma Shift From Right 
 

56°
Show Text 

Vertical Viewing Angle 
 

8.5
7.4

Vertical Viewing Angle Video  

Vertical Chroma Graph  

Dell U3818DW Vertical Chroma Graph

Color Washout From Below 
 

34°

Color Washout From Above 
 

35°

Vertical Color Shift Picture  

Dell U3417W Vertical Color Shift Picture

Vertical Hue Graph  

Dell U3818DW Vertical Hue Graph

Color Shift From Below 
 

32°
40°

Color Shift From Above 
 

31°
43°

Vertical Brightness Picture  

Dell U3417W Vertical Brightness Picture

Vertical Black Level Picture  

Dell U3417W Vertical Black Level Picture

Vertical Lightness Graph  

Dell U3818DW Vertical Lightness Graph

Brightness Loss From Below 
 

39°
36°

Brightness Loss From Above 
 

37°
37°

Black Level Raise From Below 
 

75°
70°

Black Level Raise From Above 
 

75°
70°

Gamma Shift From Below 
 

41°

Gamma Shift From Above 
 

44°
Show Text 

Gray Uniformity 
 

8.1
8.1

50% Uniformity Picture  

Dell U3417W 50% Uniformity Picture
Dell U3818DW 50% Uniformity Picture

50% Std. Dev. 
 

4.428%
3.831%

50% DSE 
 

0.133%
0.136%

5% Uniformity Picture  

Dell U3417W 5% Uniformity Picture
Dell U3818DW 5% Uniformity Picture

5% Std. Dev. 
 

0.562%
0.474%

5% DSE 
 

0.057%
0.045%
Show Text 

Black Uniformity 
 

4.4
5.8

Native Black Uniformity Picture  

Dell U3417W Native Black Uniformity Picture
Dell U3818DW Native Black Uniformity Picture

Native Std. Dev. 
 

3.047%
2.137%

Black Uniformity Picture With Local Dimming  

Dell U3417W Black Uniformity Picture With Local Dimming
Dell U3818DW Black Uniformity Picture With Local Dimming

Std. Dev. w/ L.D. 
 

N/A
N/A
Show Text 

Pre Calibration 
 

8.2
9.0

Pre Calibration Picture  

Dell U3417W Pre Calibration Picture
Dell U3818DW Pre Calibration Picture

Pre Gamma Curve Picture  

Dell U3417W Pre Gamma Curve Picture
Dell U3818DW Pre Gamma Curve Picture

Pre Color Picture  

Dell U3417W Pre Color Picture
Dell U3818DW Pre Color Picture

Picture Mode 
 

Multimedia
Standard

Luminance 
 

200 cd/m²
242 cd/m²

Luminance Settings 
 

75
75

Contrast Setting 
 

75
75

RGB Controls 
 

Default
100-100-100

Gamma Setting 
 

Default

Color Temperature 
 

6,436 K
6,593 K

White Balance dE 
 

2.18
1.67

Color dE 
 

2.47
1.32

Gamma 
 

2.11
2.20
Show Text 

Post Calibration 
 

9.4
9.6

Post Calibration Picture  

Dell U3417W Post Calibration Picture
Dell U3818DW Post Calibration Picture

Post Gamma Curve Picture  

Dell U3417W Post Gamma Curve Picture
Dell U3818DW Post Gamma Curve Picture

Post Color Picture  

Dell U3417W Post Color Picture
Dell U3818DW Post Color Picture

Picture Mode 
 

Custom Color
Custom Color

Luminance 
 

100 cd/m²
102 cd/m²

Luminance Settings 
 

29
23

Contrast Setting 
 

75
75

RGB Controls 
 

(high-97-99-97)-(Low-49-50-49)
100-99-98

Gamma Setting 
 

Default

Color Temperature 
 

6,452 K
6,420 K

White Balance dE 
 

0.81
0.67

Color dE 
 

0.86
0.54

Gamma 
 

2.16
2.17
Show Text 

SDR Color Gamut 
 

8.5
8.9

Color Gamut sRGB Picture  

Dell U3417W Color Gamut sRGB Picture
Dell U3818DW Color Gamut sRGB Picture

sRGB xy 
 

96.7%
99.0%

Color Gamut ARGB Picture  

Dell U3417W Color Gamut ARGB Picture
Dell U3818DW Color Gamut ARGB Picture

Adobe RGB xy 
 

72.3%
77.6%

sRGB Picture Mode 
 

Custom Color

Adobe RGB Picture Mode 
 

Custom Color
Show Text 

SDR Color Volume 
 

8.4
9.1

sRGB Color Volume ITP Picture  

Dell U3417W sRGB Color Volume ITP Picture
Dell U3818DW sRGB Color Volume ITP Picture

sRGB In ICtCp 
 

92.3%
97.8%

Adobe RGB Color Volume ITP Picture  

Dell U3417W Adobe RGB Color Volume ITP Picture
Dell U3818DW Adobe RGB Color Volume ITP Picture

Adobe RGB In ICtCp 
 

74.6%
83.0%

sRGB Picture Mode 
 

Custom Color

Adobe RGB Picture Mode 
 

Custom Color
Show Text 

HDR Color Gamut 
 

0.0
0.0

Wide Color Gamut 
 

No
No

Color Gamut DCI-P3 Picture  

Dell U3417W Color Gamut DCI-P3 Picture
Dell U3818DW Color Gamut DCI-P3 Picture

DCI P3 xy 
 

N/A
N/A

Color Gamut Rec.2020 Picture  

Dell U3417W Color Gamut Rec.2020 Picture
Dell U3818DW Color Gamut Rec.2020 Picture

Rec. 2020 xy 
 

N/A
N/A

DCI P3 Picture Mode 
 

No HDR

Rec. 2020 Picture Mode 
 

No HDR
Show Text 

HDR Color Volume 
 

0.0
0.0

P3 Color Volume ITP Picture  

Dell U3417W P3 Color Volume ITP Picture
Dell U3818DW P3 Color Volume ITP Picture

DCI-P3 In ICtCp 
 

N/A
N/A

2020 Color Volume ITP Picture  

Dell U3417W 2020 Color Volume ITP Picture
Dell U3818DW 2020 Color Volume ITP Picture

Rec. 2020 In ICtCp 
 

N/A
N/A

DCI P3 Picture Mode 
 

No HDR

Rec. 2020 Picture Mode 
 

No HDR
Show Text 

Image Retention 
 

10
10

Image Retention Picture  

Dell U3417W Image Retention Picture
Dell U3818DW 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 

Gradient 
 

8.1
9.4

Gradient Picture  

Dell U3417W Gradient Picture
Dell U3818DW Gradient Picture

Color Depth 
 

8 Bit
10 Bit
Show Text 

Color Bleed 
 

10
10

Color Bleed Horizontal  

Dell U3417W Color Bleed Horizontal
Dell U3818DW Color Bleed Horizontal

Pixel Row Error 
 

0.002%
0.000%

Color Bleed Vertical  

Dell U3417W Color Bleed Vertical
Dell U3818DW Color Bleed Vertical

Pixel Column Error 
 

0.001%
0.001%
Show Text 

Reflections 
 

8.0
6.4

Average Room  

Dell U3417W Average Room
Dell U3818DW Average Room

Average Room Off Picture  

Dell U3417W Average Room Off Picture
Dell U3818DW Average Room Off Picture

Bright Room Off Picture  

Dell U3417W Bright Room Off Picture
Dell U3818DW Bright Room Off Picture

Screen Finish 
 

Matte

Total Reflections 
 

7.5%

Indirect Reflections 
 

4.3%

Calculated Direct Reflections 
 

3.2%
Show Text 

Text Clarity 
 

7.0

ClearType On  

Dell U3818DW ClearType On

Pixel Type 
 

IPS
IPS

ClearType Off  

Dell U3818DW ClearType Off

Pixels  

Dell U3818DW Pixels

Sub-Pixel Layout 
 

RGB
Motion

Response Time @ Max Refresh Rate 
 

8.4
4.9

Motion Blur Picture  

Dell U3417W Motion Blur Picture

Motion Blur Picture  

Dell U3818DW Motion Blur Picture

Response Time Chart  

Dell U3417W Response Time Chart

Response Time Table  

Dell U3818DW Response Time Table

Best Overdrive Setting 
 

Normal
Normal

Rise / Fall Time 
 

6.4 ms
6.6 ms

Total Response Time 
 

12.9 ms
26.0 ms

Overshoot Error 
 

17.6%

Dark Rise / Fall Time 
 

6.5 ms

Dark Total Response Time 
 

25.3 ms

Dark Overshoot Error 
 

18.7%
Show Text 

Response Time @ 60Hz 
 

4.9

Motion Blur Picture  

Dell U3818DW Motion Blur Picture

Response Time Table  

Dell U3818DW Response Time Table

Best Overdrive Setting 
 

Normal

Rise / Fall Time 
 

6.6 ms

Total Response Time 
 

26 ms

Overshoot Error 
 

17.6%

Dark Rise / Fall Time 
 

6.5 ms

Dark Total Response Time 
 

25.3 ms

Dark Overshoot Error 
 

18.7%

Image Flicker 
 

7.5
10

Backlight Picture  

Dell U3417W Backlight Picture
Dell U3818DW Backlight Picture

Flicker-Free  

Yes
Yes

PWM Dimming Frequency 
 

0 Hz
0 Hz

Black Frame Insertion (BFI) 
 

No
No

BFI Picture  

Dell U3417W BFI Picture
Dell U3818DW BFI Picture

BFI Frequency Picture  

Dell U3417W BFI Frequency Picture
Dell U3818DW BFI Frequency Picture

BFI Maximum Frequency 
 

N/A
N/A

BFI Minimum Frequency 
 

N/A
N/A
Show Text 

Black Frame Insertion (BFI) 
 

0.0

Black Frame Insertion (BFI) 
 

No
No

BFI Picture  

Dell U3417W BFI Picture
Dell U3818DW BFI Picture

BFI Frequency Picture  

Dell U3417W BFI Frequency Picture
Dell U3818DW BFI Frequency Picture

BFI Maximum Frequency 
 

N/A
N/A

BFI Minimum Frequency 
 

N/A
N/A

Refresh Rate 
 

6.7
5.9

Variable Refresh Rate 
 

No
No VRR

Native 
 

60 Hz

Max Refresh Rate 
 

60 Hz
60 Hz

Factory Overclock 
 

N/A

Variable Refresh Rate 
 

No
No

FreeSync 
 

No

G-SYNC 
 

No
No

VRR Maximum 
 

N/A
N/A

VRR Minimum 
 

N/A
No VRR

VRR Maximum With OC 
 

N/A

VRR Supported Connectors  

N/A
No VRR
Show Text 
Inputs

Input Lag 
 

7.9
8.9

Native Resolution 
 

17.2 ms
9.2 ms

Non-Native Res @ Native Refresh 
 

17.3 ms

Native Resolution @ 60Hz 
 

17.2 ms
9.2 ms

Variable Refresh Rate 
 

N/A
N/A

Variable Refresh Rate @ 60Hz 
 

N/A

10 Bit HDR 
 

N/A
N/A

Black Frame Insertion (BFI) 
 

N/A
N/A
Show Text 

Resolution And Size 
 

8.9
8.9

Native Resolution  

3440 x 1440
3840 x 1600

Aspect Ratio  

21:9
21:9

Megapixels  

5.0 MP
6.1 MP

Pixel Density 
 

109 PPI
111 PPI

Screen Diagonal  

34.1"
37.5"

Screen Area  

415 in²
498 in²
Show Text 

Inputs  

Inputs 1  

Dell U3417W Inputs 1
Dell U3818DW Inputs 1

Inputs 2  

Dell U3417W Inputs 2
Dell U3818DW Inputs 2

Total Inputs  

DisplayPort  

1 (DP 1.2)
1 (DP 1.2)

Mini DisplayPort  

1 (DP 1.2)
No

HDMI  

2 (HDMI 2.0)
2 (HDMI 2.0)

DVI  

No
No

VGA  

No
No

DisplayPort Out  

1 (DP 1.2)
No

USB  

4 (USB 3.0)
4 (USB 3.0)

USB C  

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

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
Internal
Show Text 
Features

Additional Features 
 

RGB Illumination 
 

No

Speakers 
 

Yes
Yes

HDR10  

No
No

Multiple Input Display 
 

PIP + PBP
PIP + PBP
Show Text 

On-Screen Display (OSD)  

OSD Picture  

Dell U3417W OSD Picture
Dell U3818DW OSD Picture

Controls  

Controls Picture  

Dell U3417W Controls Picture
Dell U3818DW Controls Picture
Show Text 

In The Box  

In The Box Picture  

Dell U3417W In The Box Picture
Dell U3818DW In The Box Picture
Show Text 

Dell U3417W

Dell U3818DW

Comments

  1. Comparison

Dell U3417W vs Dell U3818DW: Main Discussion

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