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Compare Dell Alienware AW2521HF vs Acer CB382CUR vs Alienware AW3821DW

Variants
Lunar Light
Dark Side of the Moon

Connectivity

Ports
1x USB 3.0 (Type-B; upstream), 2x HDMI 2.0, 1x 3.5 mm Audio Out (headphones), 1x 3.5 mm Audio Out (line-out), 1x DisplayPort 1.2, 3x USB 3.0 (Type-A; downstream), 1x USB 3.0 (Type-A; downstream; BC 1.2 2A)
1x USB 3.1 (Type-C; upstream; 90W; DP Alt Mode), 2x HDMI 2.0, 1x 3.5 mm Audio Out, 1x DisplayPort 1.2 (in), 4x USB 3.0 (Type-A; downstream), 1x USB 3.0 (Type-B; upstream)
2x HDMI 2.0, 1x DisplayPort 1.4, 1x 3.5 mm Audio Out (headphones), 1x 3.5 mm Audio Out (line-out for speakers), 4x USB 3.2 (Type-A; Gen 1; downstream), 1x USB 3.2 (Type-B; Gen 1; upstream)

Construction

Adjustment | Height
130 mm / 5.1181 in
150 mm / 5.9055 in
130 mm / 5.1181 in
Adjustment | Pivot
-90° ~ 90°
N/A
N/A
Adjustment | Swivel
-20° ~ 20°
-180° ~ 180°
-20° ~ 20°
Adjustment | Tilt
-5° ~ 21°
-5° ~ 35°
-5° ~ 21°
Camera
No
No
No
Colors
Silver
Black
Form Factor
Curved monitor
Curved monitor
Speakers
2x 7W
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm

Dimensions

Bezels
90.11% screen-to-body ratio
90.25% screen-to-body ratio
90.21% screen-to-body ratio
Size | Depth
2.87 in / 72.95 mm w/o stand, 9.92 in / 251.92 mm w/ stand
4.98 in / 126.6 mm w/o stand, 10.59 in / 269 mm w/ stand
5.12 in / 130.1 mm w/o stand, 11.56 in / 293.5 mm w/ stand
Size | Height
12.92 in / 328.24 mm w/o stand, 16.58 in / 421.21 mm w/ stand
15.8 in / 401.2 mm w/o stand, 17.58 in / 446.5 mm w/ stand
15.72 in / 399.4 mm w/o stand, 17.7 in / 449.7 mm w/ stand
Size | Width
21.9 in / 556.29 mm
35.31 in / 896.9 mm
35.23 in / 894.9 mm
Weight
3.55 kg / 8 lbs w/o stand , 7.17 kg / 16 lbs w/ stand
10.06 kg / 22 lbs w/o stand , 13.95 kg / 31 lbs w/ stand
7.9 kg / 17 lbs w/o stand , 12.1 kg / 27 lbs w/ stand

Display

Aspect Ratio
16:9
24:10
24:10
Brightness
400 nits
300 nits
450 nits / 600 nits (peak)
Contrast Ratio
1000:1 (static)
1000:1 (static), 100000000:1 (dynamic)
1000:1 (static)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
8 bits, 16777216 colors
10 bits (8 bits + FRC), 1073741824 colors
10 bits, 1073741824 colors
Display Curvature
1900R
2300R
Display Diagonal
25" (24.5 in / 622.3 mm)
38" (37.5 in / 952.5 mm)
38" (37.5 in / 952.5 mm)
Display Type
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H), LG Display
Gamut
99% sRGB
95% DCI-P3, 100% sRGB
95% DCI-P3, 130.6% sRGB
Pixel Density
89 ppi
110 ppi
111 ppi
Pixel Pitch
0.283 mm
0.23 mm
0.229 mm
Refresh Rate
48 Hz ~ 360 Hz
48 Hz ~ 75 Hz
24 Hz ~ 144 Hz
Resolution
FHD (1920x1080)
UW4K (3840x1600)
UW4K (3840x1600)
Response Time
1 ms (min)
1 ms (min) / 3 ms (avg)
Viewing Angle
178° H / 178° V
172° H / 178° V
178° H / 178° V

Function

HDR
HDR10
DisplayHDR 600
Licenses
CCC, CE, EAC, EnergyStar, EPEAT, FCC, ISO 0241-307, MPR II, RoHS, TCO Certified Displays 8.0, VCCI
CECP, CEL, ENERGY STAR, RoHS Compliant, TCO Certified Displays, TUV Rheonland Eye Safety Certified
Operating Humidity
10 % ~ 80 %
10 % ~ 80 %
Operating Temperature
0 °C ~ 40 °C , 32 °F ~ 104 °F
0 °C ~ 40 °C , 32 °F ~ 104 °F
Variable Framerate
NVIDIA G-SYNC, AMD FreeSync Premium
AMD FreeSync
NVIDIA G-SYNC
Video
Low Blue Light, Flicker-free technology
Blue Light Filter, Flicker-free technology, KVM Switch, Picture-in-Picture, Picture-by-Picture, HDR Ready, 6-axis color adjustment, ZeroFrame Design
ComfortView, Flicker-free technology, Nano IPS, Picture-by-Picture, Low Blue Light, AlienFX Lighting, Picture-in-Picture, Ambient Light Sensor

Performance

Energy Efficiency
G
Power Consumption
24 W (average) / 72 W (max) / 12.8 W (eco) / 0.3 W (sleep) / 0.3 W (off)
42 W (average) / 65 W (max) / 0.5 W (sleep) / 0.3 W (off)
46.35 W (average) / 125 W (max) / 0.3 W (sleep) / 0.2 W (off)

Production

Accessory
DisplayPort cable, HDMI cable, USB 3.0 Type-B to Type-A cable
DisplayPort cable (optional), HDMI cable (optional), USB 3.1 Type-C cable (optional), USB Type-A to Type-B cable (optional)
DisplayPort cable, HDMI cable, Mini-DisplayPort to DisplayPort Cable, USB Type-B 3.2 Gen 1 cable
Debut
2020
2021
2020

Reviews

Neofiliac score
72%
87%
94%
Pros
  • Stand with tilt, swivel, pivot, and height adjustments
  • Fast 1 ms response time
  • High 1000:1 contrast ratio
  • Support for NVIDIA G-SYNC
  • High 90.11 % screen-to-body ratio
  • Ultra-wide form factor
  • 1900R curvature
  • Rich color reproduction
  • Stand with tilt, swivel, and height adjustments
  • High 1000:1 contrast ratio
  • 10-bit display panel
  • High 90.25 % screen-to-body ratio
  • Build-in speakers included
  • DisplayHDR 600
  • Ultra-wide form factor
  • 2300 curvature
  • Rich color reproduction
  • Stand with tilt, swivel, and height adjustments
  • Fast 1 ms response time
  • High 1000:1 contrast ratio
  • 10-bit display panel
  • Support for NVIDIA G-SYNC
Cons
  • No publicized HDR support
  • 8-bit display panel

Price

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