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The PerfectRec monitor team Learn more
Updated April 22, 2024·
If budget is a concern and you are content with a solid viewing experience for casual gaming and run-of-the-mill productivity tasks, the LG 34GN850B would serve you well, plus its ultrawide screen adds immersion in games and allows for a broader workspace. However, if you're willing to invest in top-tier image quality and color accuracy for HDR gaming, media consumption, and creative work such as digital photo editing, the MSI MAG 321UPX's superior contrast, brightness, and color performance make it a standout choice despite its higher price point. Keep in mind, though, the MSI monitor's higher resolution and better performance could also require more from your PC in gaming scenarios. 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 LG 34GN850B (IPS)
- The LG 34GN850B (IPS) has no clear advantages over the MSI MAG 321UPX (QD-OLED).
Advantages of the MSI MAG 321UPX (QD-OLED)
- Best in class for casual gaming
- Good for productivity
- Best in class for media consumption
- Very good refresh rate
- Good image clarity
- Best in class contrast
- Best in class brightness
- Best in class color volume
- Best in class response time
Key differences
Casual Gaming
5.9
9.9
3440 x 1440
RESOLUTION
3840 x 2160
144Hz
REFRESH RATE
240Hz
950:1
NATIVE CONTRAST
Inf:1
359 nits
SDR PEAK BRIGHTNESS
1000 nits
436 nits
HDR PEAK BRIGHTNESS
Unknown
94.5 %
DCI-P3 COLOR GAMUT
99.0 %
Matte
COATING
Matte
The MSI MAG 321UPX (QD-OLED) is best in class for casual gaming, while the LG 34GN850B (IPS) is poor.
Competitive Gaming
4.5
6.8
144Hz
REFRESH RATE
240Hz
6.2 ms
TOTAL RESPONSE TIME
0.0 ms
20 - 160 Hz
VARIABLE REFRESH RATE
48 - 240 Hz
No
STROBING / BFI
No
359 nits
SDR PEAK BRIGHTNESS
1000 nits
The MSI MAG 321UPX (QD-OLED) is only fair for competitive gaming, while the LG 34GN850B (IPS) is poor.
Productivity
5.9
7.6
3440 x 1440
RESOLUTION
3840 x 2160
108 PPI
PIXELS PER INCH
139 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The MSI MAG 321UPX (QD-OLED) is good for productivity, while the LG 34GN850B (IPS) is poor.
Media Consumption
5.9
10.0
3440 x 1440
RESOLUTION
3840 x 2160
950:1
NATIVE CONTRAST
Inf:1
359 nits
SDR PEAK BRIGHTNESS
1000 nits
436 nits
HDR PEAK BRIGHTNESS
Unknown
Matte
COATING
Matte
The MSI MAG 321UPX (QD-OLED) is best in class for media consumption, while the LG 34GN850B (IPS) is poor.
Cost
$750
$900
$200
$400
$600
$800
$1,000
$1,200
$1,400
The LG 34GN850B (IPS) has a price of $750 and the MSI MAG 321UPX (QD-OLED) costs $900.
HDR Gaming and Media Consumption
No
Yes
The LG 34GN850B (IPS) is not suitable for HDR gaming and media consumption while the MSI MAG 321UPX (QD-OLED) is suitable for HDR gaming and media consumption.
Digital Photo Editing
No
Yes
The LG 34GN850B (IPS) is not suitable for digital photo editing while the MSI MAG 321UPX (QD-OLED) is suitable for digital photo editing.
HDR Video Editing and Color Grading
No
Yes
The LG 34GN850B (IPS) is not suitable for HDR video editing and color grading while the MSI MAG 321UPX (QD-OLED) is suitable for HDR video editing and color grading.
Print Photo Editing
No
Yes
The LG 34GN850B (IPS) is not suitable for print photo editing while the MSI MAG 321UPX (QD-OLED) is suitable for print photo editing.
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How the LG 34GN850B (IPS) and the MSI MAG 321UPX (QD-OLED) compare to other monitors
Spec Comparison
 |  | |
| LG 34GN850B (IPS) | MSI MAG 321UPX (QD-OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$750 | $900 | ||
Screen Size | |||
Screen Size | 34" | 32" | |
Resolution | |||
Resolution | 3440 x 1440 | 3840 x 2160 | |
Screen Type | |||
Screen Type | LED | OLED | |
Screen Sub-type | |||
Screen Sub-type | IPS | QD-OLED | |
Refresh Rate | |||
Refresh Rate | 144Hz | 240Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | 950:1 | Inf:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 359 nits | 1000 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 436 nits | Unknown | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | No | Yes | |
sRGB Color Gamut | |||
sRGB Color Gamut | 99 % | 138.2 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 6.2 ms | 0.03 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 160 Hz | 48 - 240 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 6.6/10 | 8/10 | |
Ghosting Score | |||
Ghosting Score | 8/10 | 10/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 108 PPI | 139 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 7/10 | 6.9/10 | |
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 | 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 | |
Shopping
LG 34GN850B (IPS)
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Dig into reviews and images
TechSpot
Tim Schiesser | August 2020
"Mid-range 3440 x 1440 144Hz VA monitors are ~$500 to $600 these days. You are getting a much better product for the higher price of the LG, with faster response times and better colors (outside of the contrast ratio), but this is definitely a monitor that is reserved for those that want the best of the best and are willing to pay for it."
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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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