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What we think
The PerfectRec monitor team Learn more
Updated April 23, 2024·
If you prefer a larger screen with an ultra-wide aspect for immersive gaming and multitasking, consider the MSI MPG 491CQP. However, it has a lower refresh rate which is less optimal for competitive gaming. On the other hand, the MSI MAG 321UPX offers a very good refresh rate, making it better suited for fast-paced games, and its smaller screen size with a standard aspect ratio is more versatile for different uses, including productivity and media consumption. Both monitors have excellent color depth and HDR capabilities, but the MPG 491CQP's wider screen could provide a more expansive and engaging viewing experience for movies and games. 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 MAG 321UPX (QD-OLED)
- Good for productivity
- Very good refresh rate
- Good image clarity
Advantages of the MSI MPG 491CQP (QD-OLED)
- The MSI MPG 491CQP (QD-OLED) has no clear advantages over the MSI MAG 321UPX (QD-OLED).
Key differences
Competitive Gaming
6.8
5.5
240Hz
REFRESH RATE
144Hz
0.0 ms
TOTAL RESPONSE TIME
0.0 ms
48 - 240 Hz
VARIABLE REFRESH RATE
48 - 144 Hz
No
STROBING / BFI
No
1000 nits
SDR PEAK BRIGHTNESS
1000 nits
The MSI MAG 321UPX (QD-OLED) is only fair for competitive gaming, while the MSI MPG 491CQP (QD-OLED) is poor.
Productivity
7.6
5.8
3840 x 2160
RESOLUTION
5120 x 1440
139 PPI
PIXELS PER INCH
108 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The MSI MAG 321UPX (QD-OLED) is good for productivity, while the MSI MPG 491CQP (QD-OLED) is poor.
Cost
$900
$1,100
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
The MSI MAG 321UPX (QD-OLED) has a price of $900 and the MSI MPG 491CQP (QD-OLED) costs $1,100.
Key similarities
Casual Gaming
9.9
9.9
3840 x 2160
RESOLUTION
5120 x 1440
240Hz
REFRESH RATE
144Hz
Inf:1
NATIVE CONTRAST
Inf:1
1000 nits
SDR PEAK BRIGHTNESS
1000 nits
Unknown
HDR PEAK BRIGHTNESS
Unknown
99.0 %
DCI-P3 COLOR GAMUT
99.0 %
Matte
COATING
Matte
The MSI MAG 321UPX (QD-OLED) and MSI MPG 491CQP (QD-OLED) are both best in class for casual gaming.
Media Consumption
10.0
9.8
3840 x 2160
RESOLUTION
5120 x 1440
Inf:1
NATIVE CONTRAST
Inf:1
1000 nits
SDR PEAK BRIGHTNESS
1000 nits
Unknown
HDR PEAK BRIGHTNESS
Unknown
Matte
COATING
Matte
The MSI MAG 321UPX (QD-OLED) and MSI MPG 491CQP (QD-OLED) are both best in class for media consumption.
HDR Gaming and Media Consumption
Yes
Yes
Both the MSI MAG 321UPX (QD-OLED) and MSI MPG 491CQP (QD-OLED) are suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
Yes
Both the MSI MAG 321UPX (QD-OLED) and MSI MPG 491CQP (QD-OLED) are suitable for digital photo editing.
HDR Video Editing and Color Grading
Yes
Yes
Both the MSI MAG 321UPX (QD-OLED) and MSI MPG 491CQP (QD-OLED) are suitable for HDR video editing and color grading.
Print Photo Editing
Yes
Yes
Both the MSI MAG 321UPX (QD-OLED) and MSI MPG 491CQP (QD-OLED) are suitable for print photo editing.
Give feedback
We’re constantly working to improve.
How the MSI MAG 321UPX (QD-OLED) and the MSI MPG 491CQP (QD-OLED) compare to other monitors
Spec Comparison
 |  | |
| MSI MAG 321UPX (QD-OLED) | MSI MPG 491CQP (QD-OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$900 | $1,100 | ||
Screen Size | |||
Screen Size | 32" | 49" | |
Resolution | |||
Resolution | 3840 x 2160 | 5120 x 1440 | |
Screen Type | |||
Screen Type | OLED | OLED | |
Screen Sub-type | |||
Screen Sub-type | QD-OLED | QD-OLED | |
Refresh Rate | |||
Refresh Rate | 240Hz | 144Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | Inf:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 1000 nits | 1000 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | Unknown | Unknown | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | Yes | |
sRGB Color Gamut | |||
sRGB Color Gamut | 138.2 % | 146 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 0.03 ms | 0.03 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 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 | 10/10 | 10/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 139 PPI | 108 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.9/10 | 6.6/10 | |
Image Clarity Score | |||
Image Clarity Score | 7.9/10 | 7/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 0 | 0 | |
HDMI 2.1 Ports | |||
HDMI 2.1 Ports | 2 | 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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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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