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What we think
The PerfectRec monitor team Learn more
Updated April 12, 2024·
If competitive gaming is your primary focus, the Acer X27U with its lower motion blur and variable refresh rate support would give you an edge, but the Dell Alienware AW3423DW offers a wider screen for a more immersive gaming and media experience. The Dell also has better color performance, which is important for productivity tasks involving color accuracy and image clarity. However, the Acer X27U's slightly lower price and acceptable performance in gaming may be appealing if budget is a concern and competitive gaming is your priority. Both monitors have high brightness and contrast suitable for HDR gaming and media consumption. 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 X27U (W-OLED)
- Very good for competitive gaming
- Very good refresh rate
Advantages of the Dell Alienware AW3423DW (QD-OLED)
- Best in class for media consumption
- Best in class color volume
Key differences
Competitive Gaming
8.8
5.1
240Hz
REFRESH RATE
175Hz
1.4 ms
TOTAL RESPONSE TIME
1.4 ms
20 - 240 Hz
VARIABLE REFRESH RATE
20 - 175 Hz
No
STROBING / BFI
No
211 nits
SDR PEAK BRIGHTNESS
243 nits
The Acer X27U (W-OLED) is very good for competitive gaming, while the Dell Alienware AW3423DW (QD-OLED) is poor.
Media Consumption
7.5
9.5
2560 x 1440
RESOLUTION
3440 x 1440
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
243 nits
603 nits
HDR PEAK BRIGHTNESS
474 nits
Matte
COATING
Glossy
The Dell Alienware AW3423DW (QD-OLED) is best in class for media consumption, while the Acer X27U (W-OLED) is good.
Cost
$1,000
$870
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
The Acer X27U (W-OLED) has a price of $1,000 and the Dell Alienware AW3423DW (QD-OLED) costs $870.
Key similarities
Casual Gaming
9.5
9.5
2560 x 1440
RESOLUTION
3440 x 1440
240Hz
REFRESH RATE
175Hz
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
243 nits
603 nits
HDR PEAK BRIGHTNESS
474 nits
95.5 %
DCI-P3 COLOR GAMUT
99.4 %
Matte
COATING
Glossy
The Dell Alienware AW3423DW (QD-OLED) and Acer X27U (W-OLED) are both best in class for casual gaming.
Productivity
5.8
5.7
2560 x 1440
RESOLUTION
3440 x 1440
111 PPI
PIXELS PER INCH
110 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Glossy
The Acer X27U (W-OLED) and Dell Alienware AW3423DW (QD-OLED) are both poor for productivity.
HDR Gaming and Media Consumption
Yes
Yes
Both the Acer X27U (W-OLED) and Dell Alienware AW3423DW (QD-OLED) are suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
Yes
Both the Acer X27U (W-OLED) and Dell Alienware AW3423DW (QD-OLED) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Acer X27U (W-OLED) and Dell Alienware AW3423DW (QD-OLED) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the Acer X27U (W-OLED) and Dell Alienware AW3423DW (QD-OLED) are not suitable for print photo editing.
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We’re constantly working to improve.
How the Acer X27U (W-OLED) and the Dell Alienware AW3423DW (QD-OLED) compare to other monitors
Spec Comparison
 |  | |
| Acer X27U (W-OLED) | Dell Alienware AW3423DW (QD-OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $870 | ||
Screen Size | |||
Screen Size | 27" | 34" | |
Resolution | |||
Resolution | 2560 x 1440 | 3440 x 1440 | |
Screen Type | |||
Screen Type | OLED | OLED | |
Screen Sub-type | |||
Screen Sub-type | W-OLED | QD-OLED | |
Refresh Rate | |||
Refresh Rate | 240Hz | 175Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | Inf:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 211 nits | 243 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 603 nits | 474 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | Yes | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | 100 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1.4 ms | 1.4 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 240 Hz | 20 - 175 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 7.2/10 | |
Ghosting Score | |||
Ghosting Score | 9.5/10 | 9.5/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 111 PPI | 110 PPI | |
Coating | |||
Coating | Matte | Glossy | |
Text Clarity Score | |||
Text Clarity Score | 6.7/10 | 6.6/10 | |
Image Clarity Score | |||
Image Clarity Score | 7.2/10 | 7.1/10 | |
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 AW3423DW (QD-OLED)
See more
Dig into reviews and images
Tom's Hardware
Christian Eberle | April 2022
"Alienware has brought the best display technology to the desktop with its AW3423DW. With infinite contrast and a huge color gamut, it boasts a stunning image with accurate color and no need for calibration. Gaming performance is superb with smooth motion processing and quick response. This monitor truly raises the bar."
Give feedback
We're constantly perfecting our model
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By the numbers
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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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