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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
Dell U3818DW vs Dell Alienware AW3423DW
Side-by-Side Comparison
Products
Dell U3818DW
Dell Alienware AW3423DW
Tested using Methodology v1.1
Updated Dec 16, 2022 03:14 PM
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Amazon.comTested using Methodology v2.0.1
Updated Mar 04, 2025 09:15 PM
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Max Refresh Rate60 Hz
Size38"
Pixel TypeIPS
Native Resolution3840 x 1600
Variable Refresh RateNo VRR
Max Refresh Rate175 Hz
Size34"
Pixel TypeQD-OLED
Native Resolution3440 x 1440
Variable Refresh RateYes
Variants
- U3818DW (38")
- Alienware AW3423DW (34")
Our Verdict
Dell U3818DW
Dell Alienware AW3423DW
Full comparison details regarding individual product score sets can be found in the section below
Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.2
Full Comparison
Design
Style
Design Picture
Curved
Yes
Yes
Curve Radius
2300R
1800R
Size
38"
34"
Weight (without stand)
19.6 lbs (8.9 kg)
15.4 lbs (7.0 kg)
Weight (with stand)
25.4 lbs (11.5 kg)
21.8 lbs (9.9 kg)
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
8.0
8.5
Build Quality Picture
Ergonomics
6.4
7.3
Ergonomics Picture
Back Picture
Height Adjustment
4.7" (11.9 cm)
4.3" (11.0 cm)
Min Height To Top Of Panel
15.9" (40.5 cm)
Tilt Range
-20° to 5°
-21° to 5°
Rotate Portrait/Landscape
No
No
Swivel Range
-30° to 30°
-20° to 20°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
13.4" (34.0 cm)
16.9" (43.0 cm)
Base Depth
8.9" (22.6 cm)
12.2" (30.9 cm)
Thickness (With Display)
6.5" (16.5 cm)
11.2" (28.5 cm)
Weight (With Display)
25.4 lbs (11.5 kg)
21.8 lbs (9.9 kg)
Display
Display Picture
Size
38"
34"
Housing Width
32.1" (81.5 cm)
Housing Height
14.3" (36.2 cm)
Thickness (Without Stand)
3.8" (9.7 cm)
5.3" (13.4 cm)
Weight (Without Stand)
19.6 lbs (8.9 kg)
15.4 lbs (7.0 kg)
Borders Size (Bezels)
0.4" (1.0 cm)
0.4" (0.9 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
Internal
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.4" (1.0 cm)
0.4" (0.9 cm)
Thickness
Thickness Picture
Thickness (with stand)
6.5" (16.5 cm)
11.2" (28.5 cm)
Thickness (without stand)
3.8" (9.7 cm)
5.3" (13.4 cm)
Picture Quality
Contrast
6.2
10
Checkerboard Picture
Native Contrast
1,133 : 1
Inf : 1
Contrast With Local Dimming
N/A
Inf : 1
Local Dimming
0.0
10
Local Dimming Video
Local Dimming
No
No
Backlight
Edge
No Backlight
SDR Brightness
7.3
6.7
Real Scene
278 cd/m²
236 cd/m²
Peak 2% Window
302 cd/m²
248 cd/m²
Peak 10% Window
302 cd/m²
245 cd/m²
Peak 25% Window
302 cd/m²
245 cd/m²
Peak 50% Window
302 cd/m²
246 cd/m²
Peak 100% Window
302 cd/m²
246 cd/m²
Sustained 2% Window
301 cd/m²
247 cd/m²
Sustained 10% Window
302 cd/m²
242 cd/m²
Sustained 25% Window
302 cd/m²
242 cd/m²
Sustained 50% Window
302 cd/m²
244 cd/m²
Sustained 100% Window
302 cd/m²
243 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.001
Minimum Brightness
22 cd/m²
HDR Brightness
0.0
7.1
EOTF
VESA DisplayHDR Certification
DisplayHDR TRUE BLACK 400
Real Scene
N/A
484 cd/m²
Peak 2% Window
N/A
1,047 cd/m²
Peak 10% Window
N/A
474 cd/m²
Peak 25% Window
N/A
371 cd/m²
Peak 50% Window
N/A
312 cd/m²
Peak 100% Window
N/A
261 cd/m²
Sustained 2% Window
N/A
1,040 cd/m²
Sustained 10% Window
N/A
468 cd/m²
Sustained 25% Window
N/A
369 cd/m²
Sustained 50% Window
N/A
308 cd/m²
Sustained 100% Window
N/A
259 cd/m²
Automatic Brightness Limiting (ABL)
N/A
0.079
Horizontal Viewing Angle
8.1
10
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
47°
70°
Color Washout From Right
47°
70°
Horizontal Hue Graph
Color Shift From Left
53°
70°
Color Shift From Right
55°
70°
Horizontal Lightness Graph
Brightness Loss From Left
51°
70°
Brightness Loss From Right
51°
70°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
40°
70°
Gamma Shift From Left
46°
70°
Gamma Shift From Right
56°
70°
Vertical Viewing Angle
7.4
9.9
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
34°
70°
Color Washout From Above
35°
70°
Vertical Hue Graph
Color Shift From Below
40°
70°
Color Shift From Above
43°
70°
Vertical Lightness Graph
Brightness Loss From Below
36°
70°
Brightness Loss From Above
37°
70°
Black Level Raise From Below
70°
61°
Black Level Raise From Above
70°
61°
Gamma Shift From Below
41°
70°
Gamma Shift From Above
44°
70°
Gray Uniformity
8.1
8.5
50% Uniformity Picture
50% Std. Dev.
3.831%
1.794%
50% DSE
0.136%
0.132%
5% Uniformity Picture
5% Std. Dev.
0.474%
5% DSE
0.045%
Black Uniformity
5.8
10
Native Black Uniformity Picture
Native Std. Dev.
2.137%
0.111%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
9.0
9.3
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Standard
Creator (sRGB)
sRGB Gamut Area xy
102.7%
White Balance dE (Avg.)
1.67
1.21
Color Temperature (Avg.)
6,593 K
6,636 K
Gamma (Avg.)
2.20
2.25
Color dE (Avg.)
1.32
0.90
Contrast Setting
75
75
RGB Settings
100-100-100
Default
Gamma Setting
Default
2.2
Brightness Setting
75
15
Measured Brightness
242 cd/m²
48 cd/m²
Brightness Locked
No
Color Accuracy (Post-Calibration)
9.6
9.6
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Custom Color
sRGB Gamut Area xy
101.1%
White Balance dE (Avg.)
0.67
0.62
Color Temperature (Avg.)
6,420 K
6,463 K
Gamma (Avg.)
2.17
2.18
Color dE (Avg.)
0.54
0.67
Contrast Setting
75
75
RGB Settings
100-99-98
100-99-100
Gamma Setting
Default
No Gamma Setting
Brightness Setting
23
38
Measured Brightness
102 cd/m²
100 cd/m²
ICC Profile
SDR Color Gamut
8.9
9.7
sRGB Color Gamut Picture
sRGB Coverage xy
99.0%
100.0%
sRGB Picture Mode
Custom Color
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
77.6%
92.2%
Adobe RGB Picture Mode
Custom Color
Custom Color
HDR Color Gamut
0.0
9.6
Wide Color Gamut
No
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
99.4%
DCI-P3 Picture Mode
No HDR
HDR Peak 1000
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
N/A
78.9%
Rec. 2020 Picture Mode
No HDR
HDR Peak 1000
DCI P3 xy
N/A
HDR Color Volume
0.0
8.9
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
N/A
96.3%
DCI-P3 Picture Mode
No HDR
HDR Peak 1000
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
N/A
47.1%
Rec. 2020 Picture Mode
No HDR
HDR Peak 1000
Text Clarity
7.0
7.0
ClearType On
ClearType Off
Pixel Type
IPS
QD-OLED
Pixels
Subpixel Layout
RGB
Triangular RGB
Reflections
6.4
9.4
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Glossy
Total Reflections
7.5%
1.4%
Indirect Reflections
4.3%
0.9%
Calculated Direct Reflections
3.2%
0.5%
Gradient
9.4
9.8
Gradient Picture
Color Depth
10 Bit
10 Bit
SDR Color Volume
9.1
sRGB Color Volume ITP Picture
sRGB In ICtCp
97.8%
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
83.0%
sRGB Picture Mode
Custom Color
Adobe RGB Picture Mode
Custom Color
Image Retention
10
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%
Color Bleed
10
Color Bleed Horizontal
Pixel Row Error
0.000%
Color Bleed Vertical
Pixel Column Error
0.001%
Motion
Refresh Rate
7.6
Native Refresh Rate
60 Hz
175 Hz
Max Refresh Rate
60 Hz
175 Hz
Max Refresh Rate Over DP
175 Hz
Max Refresh Rate Over HDMI
100 Hz
Max Refresh Rate Over DP @ 10-bit
144 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
No VRR
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, HDMI
Native
60 Hz
175 Hz
Max Refresh Rate
60 Hz
175 Hz
Variable Refresh Rate
No
VRR Motion Performance
9.8
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
No OD Mode
Variable Overdrive Advertised
No
Avg. CAD
15
Best CAD
14
Worst CAD
16
Refresh Rate Compliance
9.8
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
95%
Compliance @ 120 FPS
96%
Compliance @ 60 FPS
97%
CAD @ Max Refresh Rate
9.9
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
Avg. CAD
14
Best 10% CAD
6
Worst 10% CAD
23
Response Time @ Max Refresh Rate
First Response Time
6.6 ms
0.3 ms
Total Response Time
26.0 ms
0.9 ms
Recommended Overdrive Setting
Normal
No OD Mode
RGB Overshoot
17.6%
1 RGB
Worst 10% RGB Overshoot
18.7%
5 RGB
Worst 10% First Response Time
6.5 ms
0.4 ms
Worst 10% Total Response Time
25.3 ms
5.6 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
Motion Blur Picture
Response Time Table
CAD @ 120Hz
9.9
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
Avg. CAD
15
Best 10% CAD
7
Worst 10% CAD
28
Response Time @ 120Hz
Worst 10% First Response Time
0.4 ms
RGB Overshoot
0 RGB
Total Response Time
1.0 ms
First Response Time
0.3 ms
Recommended Overdrive Setting
No OD Mode
Worst 10% Total Response Time
8.2 ms
Worst 10% RGB Overshoot
5 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
CAD @ 60Hz
9.9
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
Avg. CAD
17
Best 10% CAD
7
Worst 10% CAD
51
Response Time @ 60Hz
Recommended Overdrive Setting
Normal
No OD Mode
First Response Time
6.6 ms
0.3 ms
Total Response Time
26 ms
2.1 ms
RGB Overshoot
17.6%
1 RGB
Worst 10% Total Response Time
25.3 ms
16.8 ms
Worst 10% First Response Time
6.5 ms
0.4 ms
Worst 10% RGB Overshoot
18.7%
5 RGB
60Hz First Response Heatmap
60Hz Total Response Heatmap
60Hz RGB Overshoot Heatmap
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
No
No BFI
Maximum Frequency
N/A
N/A
Minimum Frequency
N/A
N/A
Longest Pulse Width Brightness
N/A
Shortest Pulse Width Brightness
N/A
Pulse Width Control
No BFI
Pulse Phase Control
No BFI
Pulse Amplitude Control
No BFI
VRR At The Same Time
No BFI
VRR Flicker
9.1
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
0.9 RGB
Middle Gray Flicker
0.2 RGB
Light Gray Flicker
0.1 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
No
PWM Dimming Frequency
0 Hz
0 Hz
Response Time @ 60Hz
4.9
Motion Blur Picture
Response Time Table
Best Overdrive Setting
Normal
No OD Mode
Rise / Fall Time
6.6 ms
0.3 ms
Total Response Time
26 ms
2.1 ms
Overshoot Error
17.6%
1 RGB
Dark Rise / Fall Time
6.5 ms
0.4 ms
Dark Total Response Time
25.3 ms
16.8 ms
Dark Overshoot Error
18.7%
5 RGB
Inputs
Input Lag
8.9
8.7
Native Resolution @ Max Hz
9.2 ms
4.3 ms
Native Resolution @ 120Hz
6.5 ms
Native Resolution @ 60Hz
9.2 ms
15.5 ms
Variable Refresh Rate
N/A
Variable Refresh Rate @ 60Hz
N/A
10 Bit HDR
N/A
Backlight Strobing (BFI)
N/A
N/A
Resolution
8.9
7.7
Native Resolution
3840 x 1600
3440 x 1440
Aspect Ratio
21:9
21:9
Megapixels
6.1 MP
5.0 MP
Pixel Density
111 PPI
110 PPI
Screen Diagonal
37.5"
Screen Area
498 in²
PS5 Compatibility
5.0
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
No
4k @ 60Hz
No
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
Xbox Series X|S Compatibility
5.0
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
4k @ 60Hz
No
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.2)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
2 (HDMI 2.0)
HDMI 2.1 Bandwidth
No HDMI 2.1
DVI
No
No
VGA
No
No
Daisy Chaining
No
3.5mm Audio Out
1
2
HDR10
No
Yes
3.5mm Audio In
No
3.5mm Microphone In
No
No
DisplayPort Out
No
USB
4 (USB 3.0)
4
USB C
1 (USB, USB PD, DP Alt Mode)
0
Digital Optical Audio Out
No
Analog Audio Out RCA
No
Power Supply
Internal
Internal
USB
USB-A Ports
4 (USB 3.0)
4
USB-A Rated Speed
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
Yes
USB-C Ports
1 (USB, USB PD, DP Alt Mode)
0
USB-C Upstream
No USB-C Ports
USB-C Rated Speed
No USB-C Ports
USB-C Power Delivery
No USB-C Ports
USB-C DisplayPort Alt Mode
No USB-C Ports
Thunderbolt
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
No
RGB Illumination
No
Controllable
Multiple Input Display
PIP + PBP
No
KVM Switch
No
HDR10
No
Yes
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Dell U3818DW
Dell Alienware AW3423DW
Comments
Dell U3818DW vs Dell Alienware AW3423DW: Main Discussion
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