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Comparison between Dell Alienware AW3423DW vs Dell U3821DW

General Info
Model Number Dell Alienware AW3423DW Dell U3821DW
Price
Type Monitor Monitor
Year 2022 2021
Brand Dell Dell
Model Series UltraSharp
Model Number Alienware AW3423DW U3821DW
Display
Screen Size Class 34" (inches) 38" (inches)
Diagonal Size 34 in
86.4 cm
863.6 mm
2.83 ft
37.52 in
95.3 cm
952.9 mm
3.13 ft
Screen Width 31.39 in
79.7 cm
797.22 mm
2.62 ft
35.04 in
89 cm
890 mm
2.92 ft
Screen Height 13.14 in
33.4 cm
333.72 mm
1.09 ft
15.27 in
38.8 cm
387.8 mm
1.27 ft
Display Curvature 1800 2300
Display Type IPS
Display Bit Depth 10 bits 10 bits
Max Number of Colors 1073741824 1073741824
Bits 30 30
Screen Aspect Ratio 21:9 24:10
Screen Resolution 3440 x 1440 3840 x 1600
Screen Pixel Pitch 0.232 mm 0.229 mm
Screen Pixel Density 109 ppi 109 ppi
Screen-to-Body Ratio 98.38 %
Backlight Source W-LED
DCI P3 99.3% 95%
sRGB 100 %
Screen Brightness 250 cd/m² 300 cd/m²
Max Screen Brightness 1000 cd/m²
Static Screen Contrast 1000 : 1
Screen Horizontal Viewing Angle 178 ° 178 °
Screen Vertical Viewing Angle 178 ° 178 °
Display Minimum Response Time 0.1 ms 5 ms
Display Average Response Time 8 ms
Display Coating Anti-glare/Matte (3H) Anti-glare/Matte (3H)
HDR HDR10
DisplayHDR 400 True Black
DisplayHDR 600
3D No No
Size, weight, color
Case Depth 4.03 in
10.2 cm
102.4 mm
0.34 ft
Case Weight 8.8 kg
19 lbs
Case Width with Stand 35.21 in
89.4 cm
894.3 mm
2.93 ft
Case Height with Stand 17.47 in
44.4 cm
443.8 mm
1.46 ft
Case Depth with Stand 9.89 in
25.1 cm
251.2 mm
0.82 ft
Case Weight with Stand 13.6 kg
30 lbs
Case Color White Black
Hardware
Built-in Camera No No
Connectivity 2 x HDMI 2.0
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out
4 x USB 3.0 (Type-A; downstream)
1 x USB 3.0 (Type-B; upstream)
1 x USB 3.2 (Type-C; upstream; 90W; DP Alt Mode)
4 x USB 3.2 (Type-A; Gen 1; downstream)
2 x HDMI 2.0
1 x 3.5 mm Audio Out (line-out for speakers)
1 x DisplayPort 1.4
1 x Ethernet RJ45
1 x USB 3.2 (Type-B; Gen 1; upstream)
1 x USB 3.2 (Type-C; downstream)
Audio
Audio Speakers 2 x 9W
Features
Cool Features ComfortView Plus
Flicker-free technology
NVIDIA G-Sync technology
Quantum Dot Color
Low Blue Light
5-axis OSD joystick
AlienFX Lighting
Low Blue Light
Picture-by-Picture
Picture-in-Picture
Flicker-free technology
KVM Switch
Extra Features Security lock slot
Ergonomics
Case Width 35.21 in
89.4 cm
894.3 mm
2.93 ft
Case Height 15.44 in
39.2 cm
392.3 mm
1.29 ft
Vesa Mount Support Yes Yes
VESA Interface Standard Size 100 x 100 100 x 100
Removable VESA Stand Yes Yes
Height Adjustment Yes Yes
Height Adjustment Range 110 mm
11 cm
4.3307 in
0.3609 ft
120 mm
12 cm
4.7244 in
0.3937 ft
Landscape or Portrait Pivot Support No No
Left or Right Swivel Support Yes Yes
Left Swivel 30 °
Right Swivel 30 °
Forward and Backward Tilt Support Yes Yes
Forward Tilt 5 °
Backward Tilt 21 °
Frequency and Interpolation
Vertical Digital Frequency 48 Hz - 175 Hz 56 Hz - 76 Hz
Horizontal Digital Frequency 30 kHz - 100 kHz
Screen Interpolation Measurement Unit NULL NULL
Accessories
Extras DisplayPort cable
HDMI cable
USB Type-C cable
USB Type-B 3.2 Gen 1 cable
Certificates and Standards
Licenses TUV Rheinland Low Blue Light (Hardware Solution) ENERGY STAR 8.0
EPEAT Gold
RoHS
TAA Availability
TCO Certified Displays
Usage and Storage Requirements
Safe Operating Temperature Level 0 °C - 40 °C
32 °F - 104 °F
Safe Operating Humidity Level 10 % - 80 %
Internal Storage Temperature -20 °C - 60 °C
-4 °F - 140 °F
Internal Storage Humidity 5 % - 90 %
Max Operating Altitude 5000
Max Storage Altitude 12192
Dell Alienware AW3423DW Dell U3821DW