Display
34.18 in, QD-OLED, 3440 x 1440 pixels
34.18
Refresh Rate
48 Hz - 240 Hz
48 Hz
Brightness
250 cd/m²
250 cd
Contrast Ratio
1500000 : 1
1500000
Overview
The Dell Alienware AW3425DW is a 3440 x 1440 pixels QD-OLED monitor rated for a 48 Hz - 240 Hz refresh range. On the picture-quality side, it’s specified at 250 cd/m² typical brightness, 1500000 : 1 contrast and 100% sRGB coverage. On the response-time front, it’s specified at 0.03 ms GtG. For hookups, there’s 2x HDMI 2.1, 1x DisplayPort 1.4, 1x USB-A, 1x USB-B upstream. Tearing is addressed through FreeSync, G-Sync Compatible, VESA AdaptiveSync Display 240Hz.
BrandDellPanel TypeQD-OLEDResolution3440 x 1440 pixelsRefresh Rate48 Hz - 240 Hz
Key Highlights
- Dell Alienware AW3425DW speed | 48 Hz - 240 Hz refresh with 0.03 ms GtG response
- Dell Alienware AW3425DW sync | FreeSync, G-Sync Compatible, VESA AdaptiveSync Display 240Hz
- Dell Alienware AW3425DW hub | 1 USB-B upstream and 1 USB-A downstream ports
- Dell Alienware AW3425DW image | 250 cd/m² brightness and 1500000 : 1 contrast
Who Should Buy the Dell Alienware AW3425DW
+ Best For
Dark-room ultrawide gaming
OLED contrast at 21:9
Any GPU brand
all three VRR standards certified
Sim and racing
1800R across 3440 x 1440 at 240 Hz
Value OLED buyers
240 Hz rather than paying for 360
× Not Ideal For
Laptop desks
USB-C is downstream 15 W only
Desks needing audio
there are no speakers
Bright rooms
250 cd/m2 full-screen brightness
Portrait layouts
no pivot on this stand
Display Performance
Refresh Rate
48 Hz - 240 Hz
High-refresh gaming range
Response Time
0.03 ms GtG
Manufacturer-published transition time
Brightness
250 cd/m²
Typical brightness as specified; peak figure not published
Contrast
1500000 : 1
Standard panel black depth
Colour Gamut
100% sRGB
Standard game and web colour
HDR
DisplayHDR 400 / HDR10
Peak brightness and local dimming not separately published
Gaming Performance
Refresh Rate48 Hz - 240 HzHigh ceiling supports competitive frame rates
Response Time0.03 ms (GtG)Published claim without independent testing
VRR / Adaptive SyncFreeSync, G-Sync Compatible, VESA AdaptiveSync Display 240HzHelps reduce tearing on compatible GPUs
GPU Requirement3440 x 1440 pixels up to 240 HzHigh refresh ceiling needs a high-end GPU to fully utilise
HDR & Brightness Reality
DisplayHDR 400 True Black is the OLED-specific entry tier and it is graded on black level, so the modest number understates what this panel does - 1,500,000:1 contrast with a 1000 cd/m2 peak means highlights sit against genuine black. Full-screen brightness is 250 cd/m2, the usual OLED shape. One correction worth making: the spec sheet lists 10% DCI-P3, which cannot be right on a panel that also covers 100% sRGB, since DCI-P3 is the wider space. Treat that figure as a scraping error.
Connectivity & Ports
HDMI2x HDMI 2.1Published port count and version
DisplayPort1x DisplayPort 1.4Input includes Display Stream Compression (DSC)
USB-CNot publishedNo one-cable laptop or charging function
USB Hub1x USB-B upstream / 1x USB-A downstreamPeripherals can run through the screen
Audio OutNot listedCheck before buying if you need audio from the monitor
Desk Fit & Ergonomics
Size / Footprint814.15 × 445.08 × 232 mmCheck desk width and depth before purchase
StandRemovable: YesA separate arm can replace the supplied base
VESA Mount100 x 100 mmUse a matching arm or wall mount
Tilt-5 ° to +21 °Covers the published forward and backward range
Height Adjust110 mm (4.33 in)Supports eye-level positioning
Swivel / Pivot±20 ° / No pivotSupports shared angles and portrait rotation
Real-World Use Cases
OLED blacks across 3440 x 1440
a gentle 1800R wrap at 240 Hz
0.03 ms with all three VRR standards
1000 cd/m2 highlights against true black
Pros & Cons
Pros
- 48 Hz 240 Hz refresh range with 0.03 ms GtG response supports fast-paced use
- FreeSync, G-Sync Compatible, VESA AdaptiveSync Display 240Hz give broad adaptive-sync compatibility
- Built-in USB hub adds convenient peripheral connectivity
- Stand offers 110 mm (4.33 in) height adjustment, swivel
- 100% sRGB coverage is published for the panel
Cons
- No listed built-in speakers
Score & Ratings
8/10
Great
Model Information
6
| Specification | Value |
|---|---|
| Brand | Dell |
| Model | Alienware AW3425DW |
| Model Alias | AW3425DW |
| Full Product Name | Dell Alienware AW3425DW |
| Model Year | 2025 |
| Available Colors | Interstellar Indigo |
Display & Panel
12
| Specification | Value | What It Means |
|---|---|---|
| Screen Size | 34.18 in | |
| Exact Diagonal | 868.21 mm (34.18 in) | |
| Radius of Curvature | 1800R | |
| Aspect Ratio | 2.389:1 | |
| Active Display Width | 800.1 mm (31.50 in) | |
| Active Display Height | 337.1 mm (13.27 in) | |
| Screen-to-Body Ratio | 91.63% | |
| Panel Type | QD-OLED | QD-OLED affects viewing angles, black depth and color consistency — each panel technology trades these off differently. |
| Panel Technology | 2nd Gen QD-OLED | |
| Backlight Type | Self-emissive (no backlight — OLED) | |
| 3D Support | No | |
| Screen Coating | Glossy |
Resolution & Pixel Details
3
| Specification | Value | What It Means |
|---|---|---|
| Native Resolution | 3440 x 1440 pixels | |
| Pixel Density | 109 ppi | 109 ppi indicates how much scaling may be needed in the operating system for comfortable reading. |
| Pixel Pitch | 0.232 mm (0.01 in) |
Picture Quality & Color
11
| Specification | Value | What It Means |
|---|---|---|
| Panel Bit Depth | 10 bits | |
| FRC | No | |
| Display Colors | 1073.7 million colors (30 bits) | |
| Typical Brightness | 250 cd/m² | |
| Static Contrast Ratio | 1500000 : 1 | |
| Horizontal Viewing Angle | 178 ° | |
| Vertical Viewing Angle | 178 ° | |
| HDR Support | Yes | |
| HDR10 | Yes | |
| sRGB Coverage | 100% | 100% indicates how much of that color space the panel can reproduce, which affects color accuracy for photo/video work. |
| DCI-P3 Coverage | 99.3% |
Refresh Rate, Response & Gaming
4
| Specification | Value |
|---|---|
| Refresh Rate Range | 48 Hz - 240 Hz |
| Minimum Response Time | 0.03 ms |
| AMD FreeSync | Yes (Premium Pro) |
| NVIDIA G-Sync | Compatible |
Ports & Connectivity
8
| Specification | Value |
|---|---|
| HDMI Ports | 2 |
| HDMI Version | 2.1 |
| DisplayPort Input | 1 |
| DisplayPort Version | 1.4 |
| USB-C Video Input | 1× USB-C |
| Display Stream Compression | Yes |
| USB-A Ports | 1 |
| USB-B Upstream | 1 |
Audio, Camera, Network & Smart Features
1
| Specification | Value |
|---|---|
| Built-In Camera | No |
Ergonomics & Stand
12
| Specification | Value | What It Means |
|---|---|---|
| VESA Mount | Yes | |
| VESA Size | 100 x 100 mm | |
| Removable Stand | Yes | |
| Height Adjustment | Yes | 110 mm (4.33 in) of travel allows the screen to be raised or lowered for a comfortable eye-level position. |
| Height Adjustment Range | 110 mm (4.33 in) | |
| Tilt Adjustment | Yes | |
| Forward Tilt | 5 ° | |
| Backward Tilt | 21 ° | |
| Swivel Adjustment | Yes | |
| Left Swivel | 20 ° | |
| Right Swivel | 20 ° | |
| Pivot Adjustment | No |
Dimensions, Weight & Design
5
| Specification | Value |
|---|---|
| Dimensions With Stand | 814.15 × 445.08 × 232 mm |
| Dimensions Without Stand | 814.15 × 361.55 × 111.23 mm |
| Weight With Stand | 8.14 kg (17.95 lbs) |
| Weight Without Stand | 5.09 kg (11.22 lbs) |
| Stand Depth | 232 mm (9.13 in) |
Power & Operating Conditions
14
| Specification | Value |
|---|---|
| Power Input | 100–240V |
| 110V Input Range | 100 V - 120 V |
| 220V Input Range | 220 V - 240 V |
| AC Frequency | 50 Hz - 60 Hz |
| Average Power Consumption | 36.7 W |
| Maximum Power Consumption | 190 W |
| Sleep Consumption | 0.5 W |
| Off Consumption | 0.3 W |
| Operating Temperature | 0 °C - 40 °C (32 °F - 104 °F) |
| Operating Humidity | 10% - 80% |
| Operating Altitude | 5000 m |
| Storage Temperature | -20 °C - 60 °C (-4 °F - 140 °F) |
| Storage Humidity | 5% - 90% |
| Storage Altitude | 12192 m |
Eye Care, Protection & Additional Features
4
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| ComfortView Plus | Yes |
| Additional Monitor Features | 360-degree ventilation; AI-regulated electrical current per pixel; AlienFX lighting with new AW30 glyph iconography; Alienware Command Center 6.6; Creator Mode; Graphite film heatsink; Picture-by-Picture; Picture-in-Picture; Pixel Refresh / Pixel Shift / Panel Refresh; Quantum Dot Color; Anti-theft stand lock slot; AW30 design |
Certifications, Standards & Licenses
5
| Specification | Value |
|---|---|
| VESA DisplayHDR | DisplayHDR 400 |
| VESA AdaptiveSync | Display 240Hz |
| RoHS | Yes |
| CE | Yes |
| FCC | Yes |
Included Accessories
3
| Specification | Value |
|---|---|
| HDMI Cable | Yes |
| DisplayPort Cable | Yes |
| USB Type-A to Type-B Cable | Yes |
Frequently Asked Questions
01 Why is the DCI-P3 figure listed as 10%? +
It is a data error. The same sheet lists 100% sRGB, and DCI-P3 is a wider colour space than sRGB - a panel cannot cover all of the smaller one and a tenth of the larger. QD-OLED panels of this generation typically sit near 99%.
02 Is 240 Hz enough on an ultrawide? +
For nearly everyone, yes. The 360 Hz ultrawides from Asus and MSI cost considerably more and only pay off if your GPU genuinely produces 300+ fps at 3440 x 1440. At 240 Hz this is the more sensible buy.
03 What is 2nd Gen QD-OLED versus newer panels? +
It peaks at 1000 cd/m2 where 4th-gen tandem panels reach 1300. In a dark room the difference is modest; the black level, which matters more, is identical.
04 Does it dock a laptop? +
No. The USB-C is downstream at 15 W, so it powers accessories rather than accepting video. The hub runs from USB-B upstream, and there is no single-cable option.
05 How is burn-in handled? +
Alienware uses AI-regulated electrical current at pixel level to manage wear, alongside the usual pixel-refresh routines. Static taskbars over long periods are still the risk to manage.
Reviews
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT
SHEET № ALIENWARE AW3425DW