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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If competitive gaming with high refresh rates is a priority, the Cooler Master GZ2711 would serve you well due to its very good refresh rate and response time, but its text clarity and productivity performance are not as strong. Conversely, the LG UltraFine 5K provides exceptional image clarity and text quality, making it a superior choice for professional work in photo editing or for tasks requiring high screen resolution, though it falls short in gaming capabilities due to a lower refresh rate. You'll compromise on gaming performance but gain in sharpness and detail for work-related tasks with the LG. Consider your primary use; gamers tend to prefer refresh rate, whereas professionals may prioritize resolution and color accuracy. 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 Cooler Master GZ2711 (W-OLED)
- Best in class for casual gaming
- Best in class for competitive gaming
- Very good refresh rate
- Best in class contrast
- Best in class response time
Advantages of the LG UltraFine 5K 27MD5KL (IPS)
- Very good for productivity
- Best in class text clarity
- Best in class image clarity
Key differences
Casual Gaming
9.7
6.0
2560 x 1440
RESOLUTION
5120 x 2880
240Hz
REFRESH RATE
60Hz
Inf:1
NATIVE CONTRAST
1200:1
450 nits
SDR PEAK BRIGHTNESS
500 nits
Unknown
HDR PEAK BRIGHTNESS
Unknown
98.5 %
DCI-P3 COLOR GAMUT
99.0 %
Matte
COATING
Glossy
The Cooler Master GZ2711 (W-OLED) is best in class for casual gaming, while the LG UltraFine 5K 27MD5KL (IPS) is only fair.
Competitive Gaming
9.6
5.0
240Hz
REFRESH RATE
60Hz
0.3 ms
TOTAL RESPONSE TIME
14.0 ms
48 - 240 Hz
VARIABLE REFRESH RATE
N/A
No
STROBING / BFI
No
450 nits
SDR PEAK BRIGHTNESS
500 nits
The Cooler Master GZ2711 (W-OLED) is best in class for competitive gaming, while the LG UltraFine 5K 27MD5KL (IPS) is poor.
Productivity
5.8
8.7
2560 x 1440
RESOLUTION
5120 x 2880
109 PPI
PIXELS PER INCH
218 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Glossy
The LG UltraFine 5K 27MD5KL (IPS) is very good for productivity, while the Cooler Master GZ2711 (W-OLED) is poor.
Media Consumption
7.9
7.0
2560 x 1440
RESOLUTION
5120 x 2880
Inf:1
NATIVE CONTRAST
1200:1
450 nits
SDR PEAK BRIGHTNESS
500 nits
Unknown
HDR PEAK BRIGHTNESS
Unknown
Matte
COATING
Glossy
The Cooler Master GZ2711 (W-OLED) and LG UltraFine 5K 27MD5KL (IPS) are both good for media consumption, though the Cooler Master GZ2711 (W-OLED) is somewhat better.
Cost
$900
$1,179
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
The Cooler Master GZ2711 (W-OLED) has a price of $900 and the LG UltraFine 5K 27MD5KL (IPS) costs $1,179.
HDR Gaming and Media Consumption
Yes
No
The Cooler Master GZ2711 (W-OLED) is suitable for HDR gaming and media consumption while the LG UltraFine 5K 27MD5KL (IPS) is not suitable for HDR gaming and media consumption.
Print Photo Editing
Yes
No
The Cooler Master GZ2711 (W-OLED) is suitable for print photo editing while the LG UltraFine 5K 27MD5KL (IPS) is not suitable for print photo editing.
Key similarities
Digital Photo Editing
Yes
Yes
Both the Cooler Master GZ2711 (W-OLED) and LG UltraFine 5K 27MD5KL (IPS) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Cooler Master GZ2711 (W-OLED) and LG UltraFine 5K 27MD5KL (IPS) are not suitable for HDR video editing and color grading.
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How the Cooler Master GZ2711 (W-OLED) and the LG UltraFine 5K 27MD5KL (IPS) compare to other monitors
Spec Comparison
 |  | |
| Cooler Master GZ2711 (W-OLED) | LG UltraFine 5K 27MD5KL (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$900 | $1,179 | ||
Screen Size | |||
Screen Size | 27" | 27" | |
Resolution | |||
Resolution | 2560 x 1440 | 5120 x 2880 | |
Screen Type | |||
Screen Type | OLED | LED | |
Screen Sub-type | |||
Screen Sub-type | W-OLED | IPS | |
Refresh Rate | |||
Refresh Rate | 240Hz | 60Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 1200:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 450 nits | 500 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | Unknown | Unknown | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | 100 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 0.3 ms | 14 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 240 Hz | N/A | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 5/10 | |
Ghosting Score | |||
Ghosting Score | 9.9/10 | 6/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 109 PPI | 218 PPI | |
Coating | |||
Coating | Matte | Glossy | |
Text Clarity Score | |||
Text Clarity Score | 6.6/10 | 10/10 | |
Image Clarity Score | |||
Image Clarity Score | 7/10 | 10/10 | |
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 | 0 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 0 | 0 | |
Give feedback
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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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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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