Alienware 38 Curved Gaming Monitor AW3821DW

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At a glance

Key facts

Diagonal Size
37.5"
Resolution
3840x1600
Panel / Backlight
LCD · Fast IPS Nano Color · LED
Aspect Ratio
24:10
USB-C Power Delivery
-

Buying advice

The AW3821DW offers a spacious 3840x1600 ultrawide canvas with 144Hz G-SYNC motion and more vertical room than common 34-inch models. It lacks OLED-level contrast and newer HDMI 2.1 features, but remains useful for buyers who want one screen for expansive work and immersive PC gaming.

Available specifications

46 fields · 7 unavailable fields

PHYSICAL SCALE

PHYSICAL SIZE
879.7 × 366.5 mm

RELEASE / IDENTITY

Release Date
2020-10-16
Brand
Dell
Series
Alienware
Model
AW3821DW

SCREEN

Active Screen Area
879.7 × 366.5 mm
Diagonal Size
37.5"
Resolution
3840x1600
Aspect Ratio
24:10
Pixel Density
110.9 ppi
PPI / PIXEL PITCH

Visual insight

Pixel density / PPI

Fixed 50–300 PPI axis. Pixel-pitch samples are symbolic and not physical pixels.

Alienware 38 Curved Gaming Monitor AW3821DW
110.9 ppiPixel pitch 229 µm
Panel / Backlight
LCD · Fast IPS Nano Color · LED
Screen Shape
Curved · 2,300R

MOTION

Refresh Rate
144 Hz
VRR Range
-
Adaptive Sync
NVIDIA G-SYNC Ultimate
Official Response
1 ms · official GtG

HDR & COLOR

HDR Formats
HDR10
HDR Certifications
VESA DisplayHDR 600
HDR CAPABILITY

Visual insight

HDR capability

Five fixed axes: 2,000 nits linear; 1,500,000:1 and 2,304 zones logarithmic; 4 formats; 6–12 bit. Missing axes stay open, not zero.

Alienware 38 Curved Gaming Monitor AW3821DW
✓VESA DisplayHDR 600 · HDR10
Peak brightness600 nits · claimed
Contrast1,000:1 · claimed
Dimming-
HDR formats1 formats
Color depth10-bit
Claimed typical450 nits
Claimed peak600 nits
Measured peak-
Local dimmingUnknownZone count -
Claimed Brightness
Typical 450 nits · Peak 600 nits
Claimed Contrast
1,000:1
Local Dimming
-
Color Coverage
DCI-P3 95%
COLOR GAMUT COVERAGE

Visual insight

Color gamut coverage

Coverage bars use a fixed 0–100% axis. They do not depict CIE geometry, gamut shape, or overlap.

Alienware 38 Curved Gaming Monitor AW3821DW
sRGB-
DCI-P395%
Adobe RGB-
Color Depth
10-bit · 1.07 billion colors

CONNECTIVITY

PORT MAP

Visual insight

Ports and hub features

Icons use structured counts, versions, capabilities, and booleans. Unsupported and unknown remain distinct.

Alienware 38 Curved Gaming Monitor AW3821DW
HDMI2× · v2.0✓
DisplayPort1× · v1.4✓
USB-CUnknown?
ThunderboltUnknown?
USB hubSupported✓
EthernetUnsupported—
AudioSupported✓
KVMUnsupported—
HDMI
2 ports · 2.0
DisplayPort
1 ports · 1.4
USB-C
-
Thunderbolt
-
USB-C Capabilities
-
USB-C Power Delivery
-
Hub / KVM / Ethernet
USB hub Yes · KVM No · Ethernet No
Audio / Speakers
Audio out Yes · Speakers No

ERGONOMICS

ERGONOMIC CAPABILITIES

Visual insight

Ergonomics

Adjustment ranges, known stand capabilities and VESA dimensions are shown. Unspecified directions remain unknown.

Alienware 38 Curved Gaming Monitor AW3821DW
Height130 mm✓
Tilt-5° to 21°✓
Swivel20° to 20°✓
PivotUnknown?
VESA100 × 100 mm✓
Stand
Stand included · height/tilt/swivel adjustable
Height Adjustment
130 mm
Tilt
-5° – 21°
Swivel
L 20° · R 20°
Pivot
-
VESA Mount
100 × 100 mm

BODY & POWER

Body Dimensions
894.9 × 399.4 × 130.1 mm
With-Stand Dimensions
W 894.9 · H ≤579.7 · D 293.5 mm
Weights
Without stand 7.9 kg
Power Consumption
Typical 43.5 W · Maximum 125 W
Warranty
3 years

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