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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you prioritize an immersive gaming experience and enjoy playing games with a wide, cinematic aspect ratio, the Acer X34V (QD-OLED) with its ultrawide screen and superior contrast is a solid choice; it's also more suitable for those on a somewhat tighter budget. However, if you're involved in digital photo editing, especially for print, or seek higher pixel density for sharper images and text, the CoolerMaster GP27U (IPS MiniLED) with its 4K resolution might be more appealing, despite costing more. The Acer lacks in productivity and standard media consumption due to its lower brightness and resolution, whereas the CoolerMaster excels in those areas but may not provide as enveloping a gaming experience. 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 Acer X34V (QD-OLED)
- Best in class for casual gaming
- Best in class for media consumption
- Best in class contrast
- Best in class color volume
- Best in class response time
Advantages of the CoolerMaster GP27U (IPS MiniLED)
- Best in class for productivity
- Very good text clarity
- Very good image clarity
- Very good brightness
Key differences
Casual Gaming
9.6
8.0
3440 x 1440
RESOLUTION
3840 x 2160
175Hz
REFRESH RATE
160Hz
Inf:1
NATIVE CONTRAST
1072:1
250 nits
SDR PEAK BRIGHTNESS
697 nits
1000 nits
HDR PEAK BRIGHTNESS
1550 nits
99.0 %
DCI-P3 COLOR GAMUT
N/A
Matte
COATING
Matte
The Acer X34V (QD-OLED) is best in class for casual gaming, while the CoolerMaster GP27U (IPS MiniLED) is very good.
Competitive Gaming
5.2
5.9
175Hz
REFRESH RATE
160Hz
1.0 ms
TOTAL RESPONSE TIME
6.2 ms
48 - 175 Hz
VARIABLE REFRESH RATE
20 - 160 Hz
No
STROBING / BFI
No
250 nits
SDR PEAK BRIGHTNESS
697 nits
The CoolerMaster GP27U (IPS MiniLED) and Acer X34V (QD-OLED) are both poor for competitive gaming, though the CoolerMaster GP27U (IPS MiniLED) is somewhat better.
Productivity
5.7
9.8
3440 x 1440
RESOLUTION
3840 x 2160
109 PPI
PIXELS PER INCH
163 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The CoolerMaster GP27U (IPS MiniLED) is best in class for productivity, while the Acer X34V (QD-OLED) is poor.
Media Consumption
9.5
8.0
3440 x 1440
RESOLUTION
3840 x 2160
Inf:1
NATIVE CONTRAST
1072:1
250 nits
SDR PEAK BRIGHTNESS
697 nits
1000 nits
HDR PEAK BRIGHTNESS
1550 nits
Matte
COATING
Matte
The Acer X34V (QD-OLED) is best in class for media consumption, while the CoolerMaster GP27U (IPS MiniLED) is very good.
Cost
$700
$770
$200
$400
$600
$800
$1,000
$1,200
The Acer X34V (QD-OLED) has a price of $700 and the CoolerMaster GP27U (IPS MiniLED) costs $770.
Digital Photo Editing
Yes
No
The Acer X34V (QD-OLED) is suitable for digital photo editing while the CoolerMaster GP27U (IPS MiniLED) is not suitable for digital photo editing.
Print Photo Editing
No
Yes
The Acer X34V (QD-OLED) is not suitable for print photo editing while the CoolerMaster GP27U (IPS MiniLED) is suitable for print photo editing.
Key similarities
HDR Gaming and Media Consumption
Yes
Yes
Both the Acer X34V (QD-OLED) and CoolerMaster GP27U (IPS MiniLED) are suitable for HDR gaming and media consumption.
HDR Video Editing and Color Grading
No
No
Both the Acer X34V (QD-OLED) and CoolerMaster GP27U (IPS MiniLED) are not suitable for HDR video editing and color grading.
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We’re constantly working to improve.
How the Acer X34V (QD-OLED) and the CoolerMaster GP27U (IPS MiniLED) compare to other monitors
Spec Comparison
 |  | |
| Acer X34V (QD-OLED) | CoolerMaster GP27U (IPS MiniLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$700 | $770 | ||
Screen Size | |||
Screen Size | 34" | 27" | |
Resolution | |||
Resolution | 3440 x 1440 | 3840 x 2160 | |
Screen Type | |||
Screen Type | OLED | MiniLED | |
Screen Sub-type | |||
Screen Sub-type | QD-OLED | IPS | |
Local Dimming Zones | |||
Local Dimming Zones | N/A | 576 | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 1072:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 250 nits | 697 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 1000 nits | 1550 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | Yes | |
sRGB Color Gamut | |||
sRGB Color Gamut | 104 % | 95.1 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1 ms | 6.2 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 175 Hz | 20 - 160 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 7.2/10 | 7/10 | |
Ghosting Score | |||
Ghosting Score | 9.6/10 | 8/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 109 PPI | 163 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.6/10 | 8/10 | |
Image Clarity Score | |||
Image Clarity Score | 7/10 | 8/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 1 | 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
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."
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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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