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What we think
The PerfectRec monitor team Learn more
Updated April 22, 2024·
If your priorities are top-notch contrast and responsiveness for fast-paced games, the Asus PG27AQDM with its OLED panel is the better option, although it's not ideal for productivity due to lower text quality and image clarity. However, if you're willing to invest more for a larger screen and better resolution that benefits productivity and offers very good color accuracy for professional photo editing, then the ViewSonic XG321UG is worth considering. The ViewSonic also has a higher peak brightness which makes it more suitable for viewing HDR content, albeit at a higher price point. Both monitors have their own strengths, so your choice should align with whether gaming performance or professional use and HDR capability is more important to you. 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 Asus PG27AQDM (W-OLED)
- Best in class for casual gaming
- Very good for competitive gaming
- Good for media consumption
- Very good refresh rate
- Best in class contrast
- Excellent response time
Advantages of the ViewSonic XG321UG (IPS Mini LED)
- Good for productivity
- Good text clarity
- Good brightness
Key differences
Casual Gaming
9.5
6.4
2560 x 1440
RESOLUTION
3440 x 2160
240Hz
REFRESH RATE
144Hz
Inf:1
NATIVE CONTRAST
1000:1
162 nits
SDR PEAK BRIGHTNESS
400 nits
963 nits
HDR PEAK BRIGHTNESS
1400 nits
97.2 %
DCI-P3 COLOR GAMUT
Matte
COATING
Matte
The Asus PG27AQDM (W-OLED) is best in class for casual gaming, while the ViewSonic XG321UG (IPS Mini LED) is only fair.
Competitive Gaming
8.6
4.6
240Hz
REFRESH RATE
144Hz
1.8 ms
TOTAL RESPONSE TIME
3.6 ms
20 - 240 Hz
VARIABLE REFRESH RATE
48,144 Hz
No
STROBING / BFI
No
162 nits
SDR PEAK BRIGHTNESS
400 nits
The Asus PG27AQDM (W-OLED) is very good for competitive gaming, while the ViewSonic XG321UG (IPS Mini LED) is poor.
Productivity
5.8
7.9
2560 x 1440
RESOLUTION
3440 x 2160
111 PPI
PIXELS PER INCH
137 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The ViewSonic XG321UG (IPS Mini LED) is good for productivity, while the Asus PG27AQDM (W-OLED) is poor.
Media Consumption
7.5
6.7
2560 x 1440
RESOLUTION
3440 x 2160
Inf:1
NATIVE CONTRAST
1000:1
162 nits
SDR PEAK BRIGHTNESS
400 nits
963 nits
HDR PEAK BRIGHTNESS
1400 nits
Matte
COATING
Matte
The Asus PG27AQDM (W-OLED) is good for media consumption, while the ViewSonic XG321UG (IPS Mini LED) is only fair.
Cost
$899
$2,300
$0
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
The Asus PG27AQDM (W-OLED) has a price of $899 and the ViewSonic XG321UG (IPS Mini LED) costs $2,300.
HDR Gaming and Media Consumption
Yes
No
The Asus PG27AQDM (W-OLED) is suitable for HDR gaming and media consumption while the ViewSonic XG321UG (IPS Mini LED) is not suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
No
The Asus PG27AQDM (W-OLED) is suitable for digital photo editing while the ViewSonic XG321UG (IPS Mini LED) is not suitable for digital photo editing.
Print Photo Editing
No
Yes
The Asus PG27AQDM (W-OLED) is not suitable for print photo editing while the ViewSonic XG321UG (IPS Mini LED) is suitable for print photo editing.
Key similarities
HDR Video Editing and Color Grading
No
No
Both the Asus PG27AQDM (W-OLED) and ViewSonic XG321UG (IPS Mini LED) are not suitable for HDR video editing and color grading.
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We’re constantly working to improve.
How the Asus PG27AQDM (W-OLED) and the ViewSonic XG321UG (IPS Mini LED) compare to other monitors
Spec Comparison
 |  | |
| Asus PG27AQDM (W-OLED) | ViewSonic XG321UG (IPS Mini LED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$899 | $2,300 | ||
Screen Size | |||
Screen Size | 27" | 32" | |
Resolution | |||
Resolution | 2560 x 1440 | 3440 x 2160 | |
Screen Type | |||
Screen Type | OLED | Mini LED | |
Screen Sub-type | |||
Screen Sub-type | W-OLED | IPS | |
Local Dimming Zones | |||
Local Dimming Zones | N/A | 1152 | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 1000:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 162 nits | 400 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 963 nits | 1400 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | ||
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1.8 ms | 3.6 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 240 Hz | 48,144 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 6.6/10 | |
Ghosting Score | |||
Ghosting Score | 9.1/10 | 8.4/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 111 PPI | 137 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.7/10 | 7.9/10 | |
Image Clarity Score | |||
Image Clarity Score | 7.2/10 | 7.9/10 | |
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
Asus PG27AQDM (W-OLED)
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Dig into reviews and images
Tom's Hardware
Christian Eberle | April 2023
"It’s hard to find any fault with the Asus ROG Swift PG27AQDM. Yes it’s expensive, but it’s incredibly good. With a stunning image and next-level video performance, it’s one of the very best gaming monitors I’ve ever reviewed."
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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.
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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