A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
What we think
The PerfectRec monitor team Learn more
Updated April 23, 2024·
If you prioritize an immersive experience with a wide field of view and exceptional contrast for gaming and media consumption, the MSI MPG 491CQP with its larger screen and OLED technology offers deep blacks and vibrant colors. However, it has limited ergonomics and may not be ideal for tasks that require precise color accuracy. On the other hand, the ViewSonic XG321UG with its higher resolution and color accuracy might be better suited for productivity and digital photo editing, though it's more expensive and has a smaller screen that may not be as immersive for gaming or media viewing. 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 MSI MPG 491CQP (QD-OLED)
- Best in class for casual gaming
- Best in class for media consumption
- Best in class contrast
- Best in class brightness
- Best in class color volume
- Best in class response time
Advantages of the ViewSonic XG321UG (IPS Mini LED)
- Good for productivity
- Good text clarity
- Good image clarity
Key differences
Casual Gaming
9.9
6.4
5120 x 1440
RESOLUTION
3440 x 2160
144Hz
REFRESH RATE
144Hz
Inf:1
NATIVE CONTRAST
1000:1
1000 nits
SDR PEAK BRIGHTNESS
400 nits
Unknown
HDR PEAK BRIGHTNESS
1400 nits
99.0 %
DCI-P3 COLOR GAMUT
Matte
COATING
Matte
The MSI MPG 491CQP (QD-OLED) is best in class for casual gaming, while the ViewSonic XG321UG (IPS Mini LED) is only fair.
Competitive Gaming
5.5
4.6
144Hz
REFRESH RATE
144Hz
0.0 ms
TOTAL RESPONSE TIME
3.6 ms
48 - 144 Hz
VARIABLE REFRESH RATE
48,144 Hz
No
STROBING / BFI
No
1000 nits
SDR PEAK BRIGHTNESS
400 nits
The MSI MPG 491CQP (QD-OLED) and ViewSonic XG321UG (IPS Mini LED) are both poor for competitive gaming, though the MSI MPG 491CQP (QD-OLED) is somewhat better.
Productivity
5.8
7.9
5120 x 1440
RESOLUTION
3440 x 2160
108 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 MSI MPG 491CQP (QD-OLED) is poor.
Media Consumption
9.8
6.7
5120 x 1440
RESOLUTION
3440 x 2160
Inf:1
NATIVE CONTRAST
1000:1
1000 nits
SDR PEAK BRIGHTNESS
400 nits
Unknown
HDR PEAK BRIGHTNESS
1400 nits
Matte
COATING
Matte
The MSI MPG 491CQP (QD-OLED) is best in class for media consumption, while the ViewSonic XG321UG (IPS Mini LED) is only fair.
Cost
$1,100
$2,300
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
The MSI MPG 491CQP (QD-OLED) has a price of $1,100 and the ViewSonic XG321UG (IPS Mini LED) costs $2,300.
HDR Gaming and Media Consumption
Yes
No
The MSI MPG 491CQP (QD-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 MSI MPG 491CQP (QD-OLED) is suitable for digital photo editing while the ViewSonic XG321UG (IPS Mini LED) is not suitable for digital photo editing.
HDR Video Editing and Color Grading
Yes
No
The MSI MPG 491CQP (QD-OLED) is suitable for HDR video editing and color grading while the ViewSonic XG321UG (IPS Mini LED) is not suitable for HDR video editing and color grading.
Key similarities
Print Photo Editing
Yes
Yes
Both the MSI MPG 491CQP (QD-OLED) and ViewSonic XG321UG (IPS Mini LED) are suitable for print photo editing.
Give feedback
We’re constantly working to improve.
How the MSI MPG 491CQP (QD-OLED) and the ViewSonic XG321UG (IPS Mini LED) compare to other monitors
Spec Comparison
 |  | |
| MSI MPG 491CQP (QD-OLED) | ViewSonic XG321UG (IPS Mini LED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,100 | $2,300 | ||
Screen Size | |||
Screen Size | 49" | 32" | |
Resolution | |||
Resolution | 5120 x 1440 | 3440 x 2160 | |
Screen Type | |||
Screen Type | OLED | Mini LED | |
Screen Sub-type | |||
Screen Sub-type | QD-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 | 1000 nits | 400 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | Unknown | 1400 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 146 % | ||
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 0.03 ms | 3.6 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 144 Hz | 48,144 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 6.6/10 | 6.6/10 | |
Ghosting Score | |||
Ghosting Score | 10/10 | 8.4/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 108 PPI | 137 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.6/10 | 7.9/10 | |
Image Clarity Score | |||
Image Clarity Score | 7/10 | 7.9/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 0 | 2 | |
HDMI 2.1 Ports | |||
HDMI 2.1 Ports | 2 | 0 | |
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
More comparisons for you
Compare MSI MPG 491CQP (QD-OLED) vs. Asus XB273U F (IPS)
VS
Compare MSI MPG 491CQP (QD-OLED) vs. Gigabyte CO49DQ (QD-OLED)
VS
Compare MSI MPG 491CQP (QD-OLED) vs. Gigabyte FO32U2 (QD-OLED)
VS
Compare ViewSonic XG321UG (IPS Mini LED) vs. AOC PD49 (QD-OLED)
VS
Compare ViewSonic XG321UG (IPS Mini LED) vs. Asus PA27DCE (W-OLED)
VS
Compare ViewSonic XG321UG (IPS Mini LED) vs. LG 27EQ850 (W-OLED)
VS
FAQs
Why trust us
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
210
Monitors evaluated
10,500
Monitors stats compiled
15
Proprietary Monitors ratings developed
120,200
Recommendations made
18,030
Consumer hours saved
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.
Featured in
