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What we think
The PerfectRec monitor team Learn more
Updated April 12, 2024·
If competitive gaming is a priority and you'd like a monitor with a higher refresh rate for smoother gameplay, the Acer X27U with its W-OLED panel would be the better choice for you despite its slightly smaller screen size and higher price. However, if you prefer a more immersive experience with a wider display for productivity and media consumption, the Dell Alienware AW3423DWF offers a larger, ultrawide screen with QD-OLED technology for less money, although at a lower refresh rate which could be less optimal for fast-paced gaming. Both monitors offer exceptional color and contrast, making them suitable for HDR gaming and media, as well as photo editing. 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 AW3423DWF (QD-OLED)
- Excellent for media consumption
- Best in class color volume
Key differences
Competitive Gaming
8.8
5.0
240Hz
REFRESH RATE
165Hz
1.4 ms
TOTAL RESPONSE TIME
1.4 ms
20 - 240 Hz
VARIABLE REFRESH RATE
20 - 165 Hz
No
STROBING / BFI
No
211 nits
SDR PEAK BRIGHTNESS
240 nits
The Acer X27U (W-OLED) is very good for competitive gaming, while the Dell Alienware AW3423DWF (QD-OLED) is poor.
Media Consumption
7.5
9.4
2560 x 1440
RESOLUTION
3440 x 1440
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
240 nits
603 nits
HDR PEAK BRIGHTNESS
459 nits
Matte
COATING
Glossy
The Dell Alienware AW3423DWF (QD-OLED) is excellent for media consumption, while the Acer X27U (W-OLED) is good.
Cost
$1,000
$900
$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 AW3423DWF (QD-OLED) costs $900.
Key similarities
Casual Gaming
9.5
9.5
2560 x 1440
RESOLUTION
3440 x 1440
240Hz
REFRESH RATE
165Hz
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
240 nits
603 nits
HDR PEAK BRIGHTNESS
459 nits
95.5 %
DCI-P3 COLOR GAMUT
99.5 %
Matte
COATING
Glossy
The Dell Alienware AW3423DWF (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 AW3423DWF (QD-OLED) are both poor for productivity.
HDR Gaming and Media Consumption
Yes
Yes
Both the Acer X27U (W-OLED) and Dell Alienware AW3423DWF (QD-OLED) are suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
Yes
Both the Acer X27U (W-OLED) and Dell Alienware AW3423DWF (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 AW3423DWF (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 AW3423DWF (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 AW3423DWF (QD-OLED) compare to other monitors
Spec Comparison
 |  | |
| Acer X27U (W-OLED) | Dell Alienware AW3423DWF (QD-OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $900 | ||
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 | 165Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | Inf:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 211 nits | 240 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 603 nits | 459 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | Yes | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | 99.1 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1.4 ms | 1.4 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 240 Hz | 20 - 165 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 7.1/10 | |
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 | 1 | |
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 AW3423DWF (QD-OLED)
See more
Dig into reviews and images
PC Gamer
Jeremy Laird | May 2023
"It may seem like a minor tweak, but the addition of a glossy anti-glare coating makes all the difference. It really lets the OLED panel rip. That this revised "F" model is also cheaper than the OG Alienware OLED and the similarly glossy Philips competition seals the deal. This is our new favourite among the OLED monitor massive."
Give feedback
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.
By the numbers
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Monitors evaluated
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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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