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What we think
The PerfectRec monitor team Learn more
Updated April 23, 2024·
If you prioritize deep blacks, vibrant colors, and high contrast for immersive HDR gaming and media consumption, the Acer Predator X45 with its OLED panel is a superior choice despite its higher price. However, if you're focused on productivity tasks that benefit from sharper text and image clarity, such as digital photo editing, the Dell Alienware AW3821DW with its larger screen and IPS panel might serve you better, while also saving you some money. The Acer's superior contrast and color range come at the cost of a lower screen resolution and potential burn-in issues commonly associated with OLED screens. Conversely, the Dell offers a higher resolution and is less prone to burn-in, but has lower contrast and less impressive color performance. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Acer Predator X45 (W-OLED)
- Best in class for casual gaming
- Good for media consumption
- Very good refresh rate
- Best in class contrast
- Best in class brightness
- Best in class response time
Advantages of the Dell Alienware AW3821DW (IPS)
- Good text clarity
- Good image clarity
Key differences
Casual Gaming
9.8
6.0
3440 x 1440
RESOLUTION
3840 x 1600
240Hz
REFRESH RATE
144Hz
Inf:1
NATIVE CONTRAST
883:1
1000 nits
SDR PEAK BRIGHTNESS
495 nits
Unknown
HDR PEAK BRIGHTNESS
660 nits
98.5 %
DCI-P3 COLOR GAMUT
95.6 %
Matte
COATING
Matte
The Acer Predator X45 (W-OLED) is best in class for casual gaming, while the Dell Alienware AW3821DW (IPS) is only fair.
Competitive Gaming
6.4
4.5
240Hz
REFRESH RATE
144Hz
0.0 ms
TOTAL RESPONSE TIME
10.8 ms
48 - 240 Hz
VARIABLE REFRESH RATE
20 - 144 Hz
No
STROBING / BFI
No
1000 nits
SDR PEAK BRIGHTNESS
495 nits
The Acer Predator X45 (W-OLED) is only fair for competitive gaming, while the Dell Alienware AW3821DW (IPS) is poor.
Productivity
4.0
6.6
3440 x 1440
RESOLUTION
3840 x 1600
83 PPI
PIXELS PER INCH
111 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The Dell Alienware AW3821DW (IPS) is only fair for productivity, while the Acer Predator X45 (W-OLED) is poor.
Media Consumption
7.1
6.2
3440 x 1440
RESOLUTION
3840 x 1600
Inf:1
NATIVE CONTRAST
883:1
1000 nits
SDR PEAK BRIGHTNESS
495 nits
Unknown
HDR PEAK BRIGHTNESS
660 nits
Matte
COATING
Matte
The Acer Predator X45 (W-OLED) is good for media consumption, while the Dell Alienware AW3821DW (IPS) is only fair.
Cost
$1,200
$749
$0
$500
$1,000
$1,500
$2,000
The Acer Predator X45 (W-OLED) has a price of $1,200 and the Dell Alienware AW3821DW (IPS) costs $749.
HDR Gaming and Media Consumption
Yes
No
The Acer Predator X45 (W-OLED) is suitable for HDR gaming and media consumption while the Dell Alienware AW3821DW (IPS) is not suitable for HDR gaming and media consumption.
HDR Video Editing and Color Grading
Yes
No
The Acer Predator X45 (W-OLED) is suitable for HDR video editing and color grading while the Dell Alienware AW3821DW (IPS) is not suitable for HDR video editing and color grading.
Print Photo Editing
Yes
No
The Acer Predator X45 (W-OLED) is suitable for print photo editing while the Dell Alienware AW3821DW (IPS) is not suitable for print photo editing.
Key similarities
Digital Photo Editing
Yes
Yes
Both the Acer Predator X45 (W-OLED) and Dell Alienware AW3821DW (IPS) are suitable for digital photo editing.
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We’re constantly working to improve.
How the Acer Predator X45 (W-OLED) and the Dell Alienware AW3821DW (IPS) compare to other monitors
Spec Comparison
 |  | |
| Acer Predator X45 (W-OLED) | Dell Alienware AW3821DW (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,200 | $749 | ||
Screen Size | |||
Screen Size | 45" | 38" | |
Resolution | |||
Resolution | 3440 x 1440 | 3840 x 1600 | |
Screen Type | |||
Screen Type | OLED | LED | |
Screen Sub-type | |||
Screen Sub-type | W-OLED | IPS | |
Local Dimming Zones | |||
Local Dimming Zones | N/A | 32 | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 883:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 1000 nits | 495 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | Unknown | 660 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | Unknown | 133 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 0.01 ms | 10.8 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 240 Hz | 20 - 144 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 6.6/10 | |
Ghosting Score | |||
Ghosting Score | 10/10 | 7/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 83 PPI | 111 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 3.8/10 | 7.2/10 | |
Image Clarity Score | |||
Image Clarity Score | 4.9/10 | 7.2/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 2 | 2 | |
HDMI 2.1 Ports | |||
HDMI 2.1 Ports | 0 | 0 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 0 | 0 | |
Shopping
Dell Alienware AW3821DW (IPS)
See more
Dig into reviews and images
Tom's Hardware
Christian Eberle | April 2021
"The Alienware AW3821DW isn’t perfect, but right now, it’s the best value in 38-inch ultrawide gaming monitors. It delivers a solid gaming experience with a bright and saturated image that’s color-accurate. With premium styling and build quality, it’s sure to satisfy gamers looking for a jumbo display."
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We're constantly perfecting our model
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This information was produced and vetted by the PerfectRec monitors team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest monitor information and makes it digestible for you.
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About the monitor team
Joe Golden, Ph.D
CEO and Monitors Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
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