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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you're looking for a monitor primarily for competitive gaming, the Acer X27U with its high refresh rate and excellent response time would serve you well, plus it's less expensive. However, if you prefer a more immersive experience with a wider screen for both gaming and media, the Asus PG34WCDM's larger, ultra-wide display could be more appealing despite the higher price. Both monitors offer fantastic color and contrast thanks to OLED technology, making them good for photo editing and enjoying high dynamic range content. But remember, for tasks like writing and spreadsheet work, both monitors may show less clarity in text compared to others designed for productivity. 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
Advantages of the Asus PG34WCDM (W-OLED)
- The Asus PG34WCDM (W-OLED) has no clear advantages over the Acer X27U (W-OLED).
Key differences
Competitive Gaming
8.8
5.6
240Hz
REFRESH RATE
240Hz
1.4 ms
TOTAL RESPONSE TIME
1.1 ms
20 - 240 Hz
VARIABLE REFRESH RATE
20 - 240 Hz
No
STROBING / BFI
Yes
211 nits
SDR PEAK BRIGHTNESS
238 nits
The Acer X27U (W-OLED) is very good for competitive gaming, while the Asus PG34WCDM (W-OLED) is poor.
Cost
$1,000
$1,300
$0
$500
$1,000
$1,500
$2,000
The Acer X27U (W-OLED) has a price of $1,000 and the Asus PG34WCDM (W-OLED) costs $1,300.
Key similarities
Casual Gaming
9.5
9.5
2560 x 1440
RESOLUTION
3440 x 1440
240Hz
REFRESH RATE
240Hz
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
238 nits
603 nits
HDR PEAK BRIGHTNESS
716 nits
95.5 %
DCI-P3 COLOR GAMUT
96.6 %
Matte
COATING
Matte
The Asus PG34WCDM (W-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
109 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The Acer X27U (W-OLED) and Asus PG34WCDM (W-OLED) are both poor for productivity.
Media Consumption
7.5
7.5
2560 x 1440
RESOLUTION
3440 x 1440
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
238 nits
603 nits
HDR PEAK BRIGHTNESS
716 nits
Matte
COATING
Matte
The Asus PG34WCDM (W-OLED) and Acer X27U (W-OLED) are both good for media consumption.
HDR Gaming and Media Consumption
Yes
Yes
Both the Acer X27U (W-OLED) and Asus PG34WCDM (W-OLED) are suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
Yes
Both the Acer X27U (W-OLED) and Asus PG34WCDM (W-OLED) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Acer X27U (W-OLED) and Asus PG34WCDM (W-OLED) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the Acer X27U (W-OLED) and Asus PG34WCDM (W-OLED) are not suitable for print photo editing.
Give feedback
We’re constantly working to improve.
How the Acer X27U (W-OLED) and the Asus PG34WCDM (W-OLED) compare to other monitors
Spec Comparison
 |  | |
| Acer X27U (W-OLED) | Asus PG34WCDM (W-OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $1,300 | ||
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 | W-OLED | |
Refresh Rate | |||
Refresh Rate | 240Hz | 240Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | Inf:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 211 nits | 238 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 603 nits | 716 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 | 1.1 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 240 Hz | 20 - 240 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | Yes | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 8/10 | |
Ghosting Score | |||
Ghosting Score | 9.5/10 | 9.6/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 111 PPI | 109 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.7/10 | 6.6/10 | |
Image Clarity Score | |||
Image Clarity Score | 7.2/10 | 7/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 2 | 0 | |
HDMI 2.1 Ports | |||
HDMI 2.1 Ports | 0 | 2 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 0 | 0 | |
Give feedback
We're constantly perfecting our model
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CEO and Monitors Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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Staff Expert & Software Engineer
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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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