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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you prioritize HDR gaming and media consumption, the CoolerMaster GP27U offers higher HDR peak brightness, which could enhance your experience with more vivid visuals. However, the Nubia RedMagic GM001J is less expensive and still delivers very strong performance in HDR, making it a more cost-effective choice for equally high-resolution gaming and productivity. For strict budget considerations with excellent productivity and gaming capabilities, the RedMagic GM001J delivers compelling value. If budget is less of a concern and the peak HDR performance is critical for your use, the CoolerMaster GP27U could be the better option. 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 contrast
- Very good response time
Advantages of the Nubia RedMagic GM001J (IPS MiniLED)
- Best in class brightness
Key differences
Casual Gaming
8.0
8.8
3840 x 2160
RESOLUTION
3840 x 2160
160Hz
REFRESH RATE
160Hz
1072:1
NATIVE CONTRAST
1000:1
697 nits
SDR PEAK BRIGHTNESS
1000 nits
1550 nits
HDR PEAK BRIGHTNESS
1300 nits
N/A
DCI-P3 COLOR GAMUT
99.0 %
Matte
COATING
Matte
The Nubia RedMagic GM001J (IPS MiniLED) and CoolerMaster GP27U (IPS MiniLED) are both very good for casual gaming, though the Nubia RedMagic GM001J (IPS MiniLED) is somewhat better.
Media Consumption
8.0
8.9
3840 x 2160
RESOLUTION
3840 x 2160
1072:1
NATIVE CONTRAST
1000:1
697 nits
SDR PEAK BRIGHTNESS
1000 nits
1550 nits
HDR PEAK BRIGHTNESS
1300 nits
Matte
COATING
Matte
The Nubia RedMagic GM001J (IPS MiniLED) and CoolerMaster GP27U (IPS MiniLED) are both very good for media consumption, though the Nubia RedMagic GM001J (IPS MiniLED) is somewhat better.
Cost
$770
$699
$200
$400
$600
$800
$1,000
$1,200
The CoolerMaster GP27U (IPS MiniLED) has a price of $770 and the Nubia RedMagic GM001J (IPS MiniLED) costs $699.
HDR Video Editing and Color Grading
No
Yes
The CoolerMaster GP27U (IPS MiniLED) is not suitable for HDR video editing and color grading while the Nubia RedMagic GM001J (IPS MiniLED) is suitable for HDR video editing and color grading.
Key similarities
Competitive Gaming
5.9
6.0
160Hz
REFRESH RATE
160Hz
6.2 ms
TOTAL RESPONSE TIME
8.0 ms
20 - 160 Hz
VARIABLE REFRESH RATE
48 - 160 Hz
No
STROBING / BFI
No
697 nits
SDR PEAK BRIGHTNESS
1000 nits
Although they have very similar scores, PerfectRec considers Nubia RedMagic GM001J (IPS MiniLED) to be only fair for competitive gaming, while the CoolerMaster GP27U (IPS MiniLED) is poor.
Productivity
9.8
10.0
3840 x 2160
RESOLUTION
3840 x 2160
163 PPI
PIXELS PER INCH
163 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The Nubia RedMagic GM001J (IPS MiniLED) and CoolerMaster GP27U (IPS MiniLED) are both best in class for productivity.
HDR Gaming and Media Consumption
Yes
Yes
Both the CoolerMaster GP27U (IPS MiniLED) and Nubia RedMagic GM001J (IPS MiniLED) are suitable for HDR gaming and media consumption.
Digital Photo Editing
No
No
Both the CoolerMaster GP27U (IPS MiniLED) and Nubia RedMagic GM001J (IPS MiniLED) are not suitable for digital photo editing.
Print Photo Editing
Yes
Yes
Both the CoolerMaster GP27U (IPS MiniLED) and Nubia RedMagic GM001J (IPS MiniLED) are suitable for print photo editing.
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We’re constantly working to improve.
How the CoolerMaster GP27U (IPS MiniLED) and the Nubia RedMagic GM001J (IPS MiniLED) compare to other monitors
Spec Comparison
 |  | |
| CoolerMaster GP27U (IPS MiniLED) | Nubia RedMagic GM001J (IPS MiniLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$770 | $699 | ||
Screen Size | |||
Screen Size | 27" | 27" | |
Resolution | |||
Resolution | 3840 x 2160 | 3840 x 2160 | |
Screen Type | |||
Screen Type | MiniLED | MiniLED | |
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 | 1000 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 1550 nits | 1300 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | Yes | |
sRGB Color Gamut | |||
sRGB Color Gamut | 95.1 % | 99 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 6.2 ms | 8 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 160 Hz | 48 - 160 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 7/10 | 7/10 | |
Ghosting Score | |||
Ghosting Score | 8/10 | 7.6/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 163 PPI | 163 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 8/10 | 8/10 | |
Image Clarity Score | |||
Image Clarity Score | 8/10 | 8/10 | |
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 | 1 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 0 | 0 | |
Shopping
CoolerMaster GP27U (IPS MiniLED)
See more
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."
Nubia RedMagic GM001J (IPS MiniLED)
See more
Dig into reviews and images
Display Ninja
Rob Shafer | June 2023
"The Redmagic GM001J is one of the best mini LED gaming monitors currently available thanks to its exceptional color gamut, fast response time and 1152-zone FALD."
Give feedback
We're constantly perfecting our model
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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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