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Comparison between Dell U4021QW vs Dell Alienware AW3420DW

General Info
Model Number Dell U4021QW Dell Alienware AW3420DW
Price
Type Monitor Monitor
Year 2021 2019
Brand Dell Dell
Model Number U4021QW Alienware AW3420DW
Display
Screen Size Class 40" (inches) 34" (inches)
Diagonal Size 34.14 in
86.7 cm
867.2 mm
2.85 ft
Screen Width 37.27 in
94.7 cm
946.6 mm
3.11 ft
31.49 in
80 cm
799.8 mm
2.62 ft
Screen Height 13.18 in
33.5 cm
334.8 mm
1.1 ft
Display Curvature 2500 1900
Display Type IPS IPS
Display Bit Depth 10 bits 8 bits
Frame Rate Control Yes
Max Number of Colors 1073741824 16777216
Bits 30 24
Screen Aspect Ratio 21:9 21:9
Screen Resolution 5120 x 2160 3440 x 1440
Screen Pixel Pitch 0.233 mm
Screen Pixel Density 109 ppi
Screen-to-Body Ratio 90.48 %
Backlight Source W-LED W-LED
DCI P3 98% 98%
sRGB 100 % 134.5 %
Screen Brightness 300 cd/m² 350 cd/m²
Static Screen Contrast 1000 : 1
Dynamic Screen Contrast 1000 : 1
Screen Horizontal Viewing Angle 178 ° 178 °
Screen Vertical Viewing Angle 178 ° 178 °
Display Minimum Response Time 5 ms 2 ms
Display Average Response Time 8 ms
Display Coating Anti-glare/Matte (3H) Anti-glare/Matte (3H)
3D No No
Size, weight, color
Case Depth 4.64 in
11.8 cm
117.9 mm
0.39 ft
Case Weight 6.8 kg
15 lbs
Case Width with Stand 37.27 in
94.7 cm
946.6 mm
3.11 ft
32.01 in
81.3 cm
813 mm
2.67 ft
Case Height with Stand 18.02 in
45.8 cm
457.8 mm
1.5 ft
16.92 in
43 cm
429.8 mm
1.41 ft
Case Depth with Stand 9.76 in
24.8 cm
248 mm
0.81 ft
10.78 in
27.4 cm
273.8 mm
0.9 ft
Case Weight with Stand 9.5 kg
21 lbs
11.1 kg
24 lbs
Case Color Black Black
Hardware
Built-in Camera No No
Connectivity 1 x USB 3.2 (Type-C; downstream; 15W)
1 x Ethernet RJ45 (Gigabit)
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out (line-out for speakers)
1 x Thunderbolt 3.0 (Type-C; upstream; 90W; DP Alt Mode)
2 x HDMI 2.0
4 x USB 3.2 (Type-A; Gen 1; downstream)
1 x USB 3.2 (Type-B; Gen 1; upstream)
3 x USB 3.0 (downstream)
1 x HDMI 1.4
1 x 3.5 mm Audio Out (line-out)
1 x 3.5 mm Audio Out (headphone)
1 x DisplayPort 1.2
1 x USB 3.0 (Type-B; upstream)
1 x USB 3.0 (downstream; BC 1.2)
Audio
Audio Speakers 2 x 9W
Features
Cool Features KVM Switch
Low Blue Light
Picture-in-Picture
Picture-by-Picture
ComfortView Plus
Flicker-free technology
Built in cable-management
Flicker-free technology
Dynamic on-screen display
AlienFX custom lighting
Nvidia G-SYNC Technology
Extra Features Security lock slot
Ergonomics
Case Width 32.01 in
81.3 cm
813 mm
2.67 ft
Case Height 14.33 in
36.4 cm
364 mm
1.19 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 120 mm
12 cm
4.7244 in
0.3937 ft
130 mm
13 cm
5.1181 in
0.4265 ft
Landscape or Portrait Pivot Support No No
Left or Right Swivel Support Yes Yes
Left Swivel 30 ° 20 °
Right Swivel 30 ° 20 °
Forward and Backward Tilt Support Yes Yes
Forward Tilt 5 ° 5 °
Backward Tilt 21 ° 21 °
Frequency and Interpolation
Vertical Digital Frequency 60 Hz 30 Hz - 120 Hz
Horizontal Digital Frequency 73 kHz - 180 kHz
Screen Interpolation Measurement Unit NULL
Accessories
Extras DisplayPort cable
HDMI cable
Thunderbolt 4 (USB-C) Active Cable
USB Type-A to Type-B cable
DisplayPort cable
HDMI cable
USB 3.0 upstream cable
Stand base
Stand riser
I/O cover
Certificates and Standards
Usage and Storage Requirements
Safe Operating Temperature Level 0 °C - 40 °C
32 °F - 104 °F
0 °C - 40 °C
32 °F - 104 °F
Safe Operating Humidity Level 10 % - 80 % 0 % - 80 %
Internal Storage Temperature -20 °C - 60 °C
-4 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
Internal Storage Humidity 5 % - 90 % 5 % - 90 %
Max Operating Altitude 5000 5000
Max Storage Altitude 12192 12192
Dell U4021QW Dell Alienware AW3420DW