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What we think
The PerfectRec monitor team Learn more
Updated April 23, 2024·
For top-of-the-line productivity and media consumption, the CoolerMaster GP27U shines with its excellent image clarity and color accuracy, making it ideal if you work with digital content or enjoy vibrant movies and games; it also provides a relatively good casual gaming experience but is less suited for competitive gaming due to its response time. In contrast, the ViewSonic XG321UG, while more costly, offers a larger screen and slightly better gaming capabilities with lower response times, yet falls short in color volume and clarity, which could affect your experience during content creation and media enjoyment. If budget is a concern and high-quality visuals for work and entertainment are your priority, the CoolerMaster would be a wise pick, whereas for a blend of gaming and general use, despite its higher price, the ViewSonic might be preferred. 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 CoolerMaster GP27U (IPS MiniLED)
- Very good for casual gaming
- Best in class for productivity
- Very good for media consumption
- Good refresh rate
- Very good text clarity
- Very good image clarity
- Very good contrast
- Very good brightness
- Very good color volume
Advantages of the ViewSonic XG321UG (IPS Mini LED)
- The ViewSonic XG321UG (IPS Mini LED) has no clear advantages over the CoolerMaster GP27U (IPS MiniLED).
Key differences
Casual Gaming
8.0
6.4
3840 x 2160
RESOLUTION
3440 x 2160
160Hz
REFRESH RATE
144Hz
1072:1
NATIVE CONTRAST
1000:1
697 nits
SDR PEAK BRIGHTNESS
400 nits
1550 nits
HDR PEAK BRIGHTNESS
1400 nits
N/A
DCI-P3 COLOR GAMUT
Matte
COATING
Matte
The CoolerMaster GP27U (IPS MiniLED) is very good for casual gaming, while the ViewSonic XG321UG (IPS Mini LED) is only fair.
Competitive Gaming
5.9
4.6
160Hz
REFRESH RATE
144Hz
6.2 ms
TOTAL RESPONSE TIME
3.6 ms
20 - 160 Hz
VARIABLE REFRESH RATE
48,144 Hz
No
STROBING / BFI
No
697 nits
SDR PEAK BRIGHTNESS
400 nits
The CoolerMaster GP27U (IPS MiniLED) and ViewSonic XG321UG (IPS Mini LED) are both poor for competitive gaming, though the CoolerMaster GP27U (IPS MiniLED) is somewhat better.
Productivity
9.8
7.9
3840 x 2160
RESOLUTION
3440 x 2160
163 PPI
PIXELS PER INCH
137 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The CoolerMaster GP27U (IPS MiniLED) is best in class for productivity, while the ViewSonic XG321UG (IPS Mini LED) is good.
Media Consumption
8.0
6.7
3840 x 2160
RESOLUTION
3440 x 2160
1072:1
NATIVE CONTRAST
1000:1
697 nits
SDR PEAK BRIGHTNESS
400 nits
1550 nits
HDR PEAK BRIGHTNESS
1400 nits
Matte
COATING
Matte
The CoolerMaster GP27U (IPS MiniLED) is very good for media consumption, while the ViewSonic XG321UG (IPS Mini LED) is only fair.
Cost
$770
$2,300
$0
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
The CoolerMaster GP27U (IPS MiniLED) has a price of $770 and the ViewSonic XG321UG (IPS Mini LED) costs $2,300.
HDR Gaming and Media Consumption
Yes
No
The CoolerMaster GP27U (IPS MiniLED) is suitable for HDR gaming and media consumption while the ViewSonic XG321UG (IPS Mini LED) is not suitable for HDR gaming and media consumption.
Key similarities
Digital Photo Editing
No
No
Both the CoolerMaster GP27U (IPS MiniLED) and ViewSonic XG321UG (IPS Mini LED) are not suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the CoolerMaster GP27U (IPS MiniLED) and ViewSonic XG321UG (IPS Mini LED) are not suitable for HDR video editing and color grading.
Print Photo Editing
Yes
Yes
Both the CoolerMaster GP27U (IPS MiniLED) and ViewSonic XG321UG (IPS Mini LED) are suitable for print photo editing.
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How the CoolerMaster GP27U (IPS MiniLED) and the ViewSonic XG321UG (IPS Mini LED) compare to other monitors
Spec Comparison
 |  | |
| CoolerMaster GP27U (IPS MiniLED) | ViewSonic XG321UG (IPS Mini LED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$770 | $2,300 | ||
Screen Size | |||
Screen Size | 27" | 32" | |
Resolution | |||
Resolution | 3840 x 2160 | 3440 x 2160 | |
Screen Type | |||
Screen Type | MiniLED | Mini LED | |
Screen Sub-type | |||
Screen Sub-type | IPS | IPS | |
Local Dimming Zones | |||
Local Dimming Zones | 576 | 1152 | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | 1072:1 | 1000:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 697 nits | 400 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 1550 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 | 95.1 % | ||
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 6.2 ms | 3.6 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 160 Hz | 48,144 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 7/10 | 6.6/10 | |
Ghosting Score | |||
Ghosting Score | 8/10 | 8.4/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 163 PPI | 137 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 8/10 | 7.9/10 | |
Image Clarity Score | |||
Image Clarity Score | 8/10 | 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 | |
Shopping
CoolerMaster GP27U (IPS MiniLED)
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Dig into reviews and images
Tom's Hardware
Christian Eberle | February 2023
"The Cooler Master Tempest GP27U leaves little to complain about. It delivers a stunning picture with high contrast, brightness, and vivid color. Professional-grade video processing means a superlative gaming experience. And it’s a little less expensive than the competition."
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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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