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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 Alienware AW3418DW vs Dell U3818DW

Side-by-Side Comparison

Products

Dell Alienware AW3418DW
Dell U3818DW

Tested using Methodology v1.1

Updated Dec 16, 2022 10:10 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated Dec 16, 2022 03:14 PM

SEE PRICE
Amazon.com
Dell Alienware AW3418DW Picture
Dell U3818DW Picture

Variants

  • Alienware AW3418DW (34")
  • U3818DW (38")

Our Verdict

Dell Alienware AW3418DW

Dell U3818DW

Overall, the Dell Alienware AW3418DW and the Dell U3818DW perform similarly, but the AW3418DW is better suited for gamers, whereas the U3818DW is better for office use. The AW3418DW has a faster refresh rate and better response time, as well as NVIDIA G-SYNC support. The Dell U3818DW has a larger, higher-resolution screen that is better for multitasking, as well as support for PIP/PIB, allowing you to work on two computers at once.

0

Check Price

34"
Alienware AW3418DW
SEE PRICE
Amazon.com
34"
Alienware AW3418DW
SEE PRICE
BestBuy.com
34"
Alienware AW3418DW
SEE PRICE
Walmart.com
34"
Alienware AW3418DW
B&H
38"
U3818DW
B&H
 

Main Differences for

Threshold 

0.10

Mixed Usage 

7.4
7.2

Refresh Rate 
 

8.7
5.9

Full Comparison

Design

Style  

Design Picture  

Dell Alienware AW3418DW 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) 
 

25.6 lbs (11.6 kg)
25.4 lbs (11.5 kg)

Stand  

Stand Picture  

Dell Alienware AW3418DW Stand Picture
Dell U3818DW Stand Picture

Width 
 

22.1" (56.1 cm)
13.4" (34.0 cm)

Depth 
 

12.5" (31.8 cm)
8.9" (22.6 cm)

Show text

Ergonomics 
 

6.3
6.4

Ergonomics Picture  

Dell Alienware AW3418DW Ergonomics Picture
Dell U3818DW Ergonomics Picture

Height Adjustment 
 

5.1" (13.0 cm)
4.7" (11.9 cm)

Switch Portrait/Landscape  

No
No

Swivel Range  

-20° to 20°
-30° to 30°

Tilt Range  

-25° to 2.5°
-20° to 5°

Show text

Back  

Back Picture  

Dell Alienware AW3418DW Back Picture
Dell U3818DW Back Picture

Wall Mount  

VESA 100x100
VESA 100x100

Show text

Borders  

Borders Picture  

Dell Alienware AW3418DW Borders Picture
Dell U3818DW Borders Picture

Borders 
 

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

Show text

Thickness  

Thickness Picture  

Dell Alienware AW3418DW Thickness Picture
Dell U3818DW Thickness Picture

Thickness (with stand) 
 

11.0" (27.9 cm)
6.5" (16.5 cm)

Thickness (without stand) 
 

4.8" (12.2 cm)
3.8" (9.7 cm)

Show text

Build Quality 
 

8.5
8.0

Build Quality Picture  

Dell Alienware AW3418DW Build Quality Picture
Dell U3818DW Build Quality Picture

Show text

Picture Quality

Contrast 
 

6.0
6.2

Checkerboard Picture  

Dell Alienware AW3418DW Checkerboard Picture
Dell U3818DW Checkerboard Picture

Native Contrast 
 

981 : 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 
 

No
No

Backlight 
 

Edge
Edge

Show text

SDR Peak Brightness 
 

7.1
7.3

SDR Real Scene 
 

262 cd/m²
278 cd/m²

SDR Peak 2% Window 
 

283 cd/m²
302 cd/m²

SDR Peak 10% Window 
 

283 cd/m²
302 cd/m²

SDR Peak 25% Window 
 

284 cd/m²
302 cd/m²

SDR Peak 50% Window 
 

284 cd/m²
302 cd/m²

SDR Peak 100% Window 
 

284 cd/m²
302 cd/m²

SDR Sustained 2% Window 
 

283 cd/m²
301 cd/m²

SDR Sustained 10% Window 
 

283 cd/m²
302 cd/m²

SDR Sustained 25% Window 
 

283 cd/m²
302 cd/m²

SDR Sustained 50% Window 
 

284 cd/m²
302 cd/m²

SDR Sustained 100% Window 
 

284 cd/m²
302 cd/m²

SDR ABL 
 

0.000
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 
 

8.7
8.1

Horizontal Viewing Angle Video  

Horizontal Chroma Graph  

Dell Alienware AW3418DW Horizontal Chroma Graph
Dell U3818DW Horizontal Chroma Graph

Color Washout From Left 
 

51°
47°

Color Washout From Right 
 

51°
47°

Horizontal Hue Graph  

Dell Alienware AW3418DW Horizontal Hue Graph
Dell U3818DW Horizontal Hue Graph

Color Shift From Left 
 

57°
53°

Color Shift From Right 
 

49°
55°

Horizontal Lightness Graph  

Dell Alienware AW3418DW Horizontal Lightness Graph
Dell U3818DW Horizontal Lightness Graph

Brightness Loss From Left 
 

52°
51°

Brightness Loss From Right 
 

53°
51°

Black Level Raise From Left 
 

70°
70°

Black Level Raise From Right 
 

70°
40°

Gamma Shift From Left 
 

59°
46°

Gamma Shift From Right 
 

62°
56°

Show text

Vertical Viewing Angle 
 

6.6
7.4

Vertical Viewing Angle Video  

Vertical Chroma Graph  

Dell Alienware AW3418DW Vertical Chroma Graph
Dell U3818DW Vertical Chroma Graph

Color Washout From Below 
 

31°
34°

Color Washout From Above 
 

31°
35°

Vertical Hue Graph  

Dell Alienware AW3418DW Vertical Hue Graph
Dell U3818DW Vertical Hue Graph

Color Shift From Below 
 

42°
40°

Color Shift From Above 
 

37°
43°

Vertical Lightness Graph  

Dell Alienware AW3418DW Vertical Lightness Graph
Dell U3818DW Vertical Lightness Graph

Brightness Loss From Below 
 

36°
36°

Brightness Loss From Above 
 

34°
37°

Black Level Raise From Below 
 

18°
70°

Black Level Raise From Above 
 

70°
70°

Gamma Shift From Below 
 

32°
41°

Gamma Shift From Above 
 

32°
44°

Show text

Gray Uniformity 
 

8.3
8.1

50% Uniformity Picture  

Dell Alienware AW3418DW 50% Uniformity Picture
Dell U3818DW 50% Uniformity Picture

50% Std. Dev. 
 

3.856%
3.831%

50% DSE 
 

0.127%
0.136%

5% Uniformity Picture  

Dell Alienware AW3418DW 5% Uniformity Picture
Dell U3818DW 5% Uniformity Picture

5% Std. Dev. 
 

0.480%
0.474%

5% DSE 
 

0.062%
0.045%

Show text

Black Uniformity 
 

5.3
5.8

Native Black Uniformity Picture  

Dell Alienware AW3418DW Native Black Uniformity Picture
Dell U3818DW Native Black Uniformity Picture

Native Std. Dev. 
 

2.495%
2.137%

Black Uniformity Picture With Local Dimming  

Dell Alienware AW3418DW 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 
 

6.7
9.0

Pre Calibration Picture  

Dell Alienware AW3418DW Pre Calibration Picture
Dell U3818DW Pre Calibration Picture

Pre Gamma Curve Picture  

Dell Alienware AW3418DW Pre Gamma Curve Picture
Dell U3818DW Pre Gamma Curve Picture

Pre Color Picture  

Dell Alienware AW3418DW Pre Color Picture
Dell U3818DW Pre Color Picture

Picture Mode 
 

Game 1,2,3
Standard

Luminance 
 

209 cd/m²
242 cd/m²

Luminance Settings 
 

75
75

Contrast Setting 
 

75
75

RGB Controls 
 

100-100-100
100-100-100

Gamma Setting 
 

No Gamma Setting
Default

Color Temperature 
 

7,070 K
6,593 K

White Balance dE 
 

3.77
1.67

Color dE 
 

3.56
1.32

Gamma 
 

2.40
2.20

Show text

Post Calibration 
 

9.6
9.6

Post Calibration Picture  

Dell Alienware AW3418DW Post Calibration Picture
Dell U3818DW Post Calibration Picture

Post Gamma Curve Picture  

Dell Alienware AW3418DW Post Gamma Curve Picture
Dell U3818DW Post Gamma Curve Picture

Post Color Picture  

Dell Alienware AW3418DW Post Color Picture
Dell U3818DW Post Color Picture

Picture Mode 
 

Custom Color
Custom Color

Luminance 
 

100 cd/m²
102 cd/m²

Luminance Settings 
 

26
23

Contrast Setting 
 

75
75

RGB Controls 
 

96-95-100
100-99-98

Gamma Setting 
 

No Gamma Setting
Default

Color Temperature 
 

6,468 K
6,420 K

White Balance dE 
 

0.63
0.67

Color dE 
 

0.60
0.54

Gamma 
 

2.18
2.17

Show text

SDR Color Gamut 
 

8.8
8.9

Color Gamut sRGB Picture  

Dell Alienware AW3418DW Color Gamut sRGB Picture
Dell U3818DW Color Gamut sRGB Picture

sRGB xy 
 

99.0%
99.0%

Color Gamut ARGB Picture  

Dell Alienware AW3418DW Color Gamut ARGB Picture
Dell U3818DW Color Gamut ARGB Picture

Adobe RGB xy 
 

77.1%
77.6%

sRGB Picture Mode 
 

Custom Color
Custom Color

Adobe RGB Picture Mode 
 

Custom Color
Custom Color

Show text

SDR Color Volume 
 

9.0
9.1

sRGB Color Volume ITP Picture  

Dell Alienware AW3418DW sRGB Color Volume ITP Picture
Dell U3818DW sRGB Color Volume ITP Picture

sRGB In ICtCp 
 

96.6%
97.8%

Adobe RGB Color Volume ITP Picture  

Dell Alienware AW3418DW Adobe RGB Color Volume ITP Picture
Dell U3818DW Adobe RGB Color Volume ITP Picture

Adobe RGB In ICtCp 
 

82.4%
83.0%

sRGB Picture Mode 
 

Custom Color
Custom Color

Adobe RGB Picture Mode 
 

Custom Color
Custom Color

Show text

HDR Color Gamut 
 

0.0
0.0

Wide Color Gamut 
 

No
No

Color Gamut DCI-P3 Picture  

Dell Alienware AW3418DW 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 Alienware AW3418DW 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
No HDR

Rec. 2020 Picture Mode 
 

No HDR
No HDR

Show text

HDR Color Volume 
 

0.0
0.0

P3 Color Volume ITP Picture  

Dell Alienware AW3418DW 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 Alienware AW3418DW 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
No HDR

Rec. 2020 Picture Mode 
 

No HDR
No HDR

Show text

Image Retention 
 

10
10

Image Retention Picture  

Dell Alienware AW3418DW 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 
 

8.6
9.4

Gradient Picture  

Dell Alienware AW3418DW Gradient Picture
Dell U3818DW Gradient Picture

Color Depth 
 

8 Bit
10 Bit

Show text

Color Bleed 
 

10
10

Color Bleed Horizontal  

Dell Alienware AW3418DW Color Bleed Horizontal
Dell U3818DW Color Bleed Horizontal

Pixel Row Error 
 

0.000%
0.000%

Color Bleed Vertical  

Dell Alienware AW3418DW Color Bleed Vertical
Dell U3818DW Color Bleed Vertical

Pixel Column Error 
 

0.000%
0.001%

Show text

Reflections 
 

7.0
6.4

Average Room  

Dell Alienware AW3418DW Average Room
Dell U3818DW Average Room

Average Room Off Picture  

Dell Alienware AW3418DW Average Room Off Picture
Dell U3818DW Average Room Off Picture

Bright Room Off Picture  

Dell Alienware AW3418DW Bright Room Off Picture
Dell U3818DW Bright Room Off Picture

Screen Finish 
 

Matte
Matte

Total Reflections 
 

6.1%
7.5%

Indirect Reflections 
 

2.9%
4.3%

Calculated Direct Reflections 
 

3.1%
3.2%

Show text

Text Clarity 
 

7.5
7.0

ClearType On  

Dell Alienware AW3418DW ClearType On
Dell U3818DW ClearType On

Pixel Type 
 

IPS
IPS

ClearType Off  

Dell Alienware AW3418DW ClearType Off
Dell U3818DW ClearType Off

Pixels  

Dell Alienware AW3418DW Pixels
Dell U3818DW Pixels

Sub-Pixel Layout 
 

RGB
RGB
Motion

Response Time @ Max Refresh Rate 
 

7.5
4.9

Motion Blur Picture  

Dell Alienware AW3418DW Motion Blur Picture
Dell U3818DW Motion Blur Picture

Response Time Table  

Dell Alienware AW3418DW Response Time Table
Dell U3818DW Response Time Table

Best Overdrive Setting 
 

Normal
Normal

Rise / Fall Time 
 

4.2 ms
6.6 ms

Total Response Time 
 

15.6 ms
26.0 ms

Overshoot Error 
 

13.2%
17.6%

Dark Rise / Fall Time 
 

4.3 ms
6.5 ms

Dark Total Response Time 
 

17.1 ms
25.3 ms

Dark Overshoot Error 
 

19.2%
18.7%

Show text

Response Time @ 60Hz 
 

5.2
4.9

Motion Blur Picture  

Dell Alienware AW3418DW Motion Blur Picture
Dell U3818DW Motion Blur Picture

Response Time Table  

Dell Alienware AW3418DW Response Time Table
Dell U3818DW Response Time Table

Best Overdrive Setting 
 

Normal
Normal

Rise / Fall Time 
 

4.4 ms
6.6 ms

Total Response Time 
 

24.3 ms
26 ms

Overshoot Error 
 

22%
17.6%

Dark Rise / Fall Time 
 

4.8 ms
6.5 ms

Dark Total Response Time 
 

23.8 ms
25.3 ms

Dark Overshoot Error 
 

29.5%
18.7%

Image Flicker 
 

10
10

Backlight Picture  

Dell Alienware AW3418DW Backlight Picture
Dell U3818DW 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 BFI
No

BFI Picture  

Dell Alienware AW3418DW BFI Picture
Dell U3818DW BFI Picture

BFI Frequency Picture  

Dell Alienware AW3418DW BFI Frequency Picture
Dell U3818DW BFI Frequency Picture

BFI Maximum Frequency 
 

N/A
N/A

BFI Minimum Frequency 
 

N/A
N/A

Refresh Rate 
 

8.7
5.9

Variable Refresh Rate 
 

G-SYNC
No VRR

Native 
 

100 Hz
60 Hz

Max Refresh Rate 
 

120 Hz
60 Hz

Variable Refresh Rate 
 

Yes
No

FreeSync 
 

No
No

G-SYNC 
 

Yes (Native)
No

VRR Maximum 
 

100 Hz
N/A

VRR Minimum 
 

< 20 Hz
No VRR

VRR Supported Connectors  

DisplayPort
No VRR

Show text

Inputs

Input Lag 
 

9.4
8.9

Native Resolution 
 

5.3 ms
9.2 ms

Native Resolution @ 60Hz 
 

13.1 ms
9.2 ms

Variable Refresh Rate 
 

6.1 ms
N/A

Variable Refresh Rate @ 60Hz 
 

12.8 ms
N/A

10 Bit HDR 
 

N/A
N/A

Black Frame Insertion (BFI) 
 

N/A
N/A

Show text

Resolution And Size 
 

8.7
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 Alienware AW3418DW Inputs 1
Dell U3818DW Inputs 1

Inputs 2  

Dell Alienware AW3418DW Inputs 2
Dell U3818DW Inputs 2

Total Inputs  

DisplayPort  

1 (DP 1.2)
1 (DP 1.2)

Mini DisplayPort  

No
No

HDMI  

1 (HDMI 1.4)
2 (HDMI 2.0)

DVI  

No
No

VGA  

No
No

DisplayPort Out  

No
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  

2
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 
 

Controllable
No

Speakers 
 

No
Yes

HDR10  

No
No

Multiple Input Display 
 

No
PIP + PBP

Show text

On-Screen Display (OSD)  

OSD Picture  

Dell Alienware AW3418DW OSD Picture
Dell U3818DW OSD Picture

Controls  

Controls Picture  

Dell Alienware AW3418DW Controls Picture
Dell U3818DW Controls Picture

Show text

In The Box  

In The Box Picture  

Dell Alienware AW3418DW In The Box Picture
Dell U3818DW In The Box Picture

Show text

Check Price

34"
Alienware AW3418DW
SEE PRICE
Amazon.com
34"
Alienware AW3418DW
SEE PRICE
BestBuy.com
34"
Alienware AW3418DW
SEE PRICE
Walmart.com
34"
Alienware AW3418DW
B&H
38"
U3818DW
B&H
 

Dell Alienware AW3418DW

Dell U3818DW

Comments

  1. Comparison

Dell Alienware AW3418DW vs Dell U3818DW: Main Discussion

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