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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you're primarily a competitive gamer looking for smooth gameplay with high refresh rates, the Cooler Master GZ2711 is a solid pick, especially since it's more affordable. However, if you prioritize ultra-high-definition for tasks like photo editing, the LG 27EP950 offers better resolution. While the Cooler Master excels in gaming, the LG might be preferable for productivity and media that benefit from crisper images and higher pixel density. Keep in mind that neither of these monitors are ideal for casual gaming or media consumption due to limited brightness and color volume. 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 competitive gaming
- Very good refresh rate
- Good brightness
Advantages of the LG 27EP950 (W-OLED)
- Very good image clarity
Key differences
Competitive Gaming
9.6
5.4
240Hz
REFRESH RATE
60Hz
0.3 ms
TOTAL RESPONSE TIME
1.0 ms
48 - 240 Hz
VARIABLE REFRESH RATE
N/A
No
STROBING / BFI
No
450 nits
SDR PEAK BRIGHTNESS
250 nits
The Cooler Master GZ2711 (W-OLED) is best in class for competitive gaming, while the LG 27EP950 (W-OLED) is poor.
Productivity
5.8
6.6
2560 x 1440
RESOLUTION
3840 x 2160
109 PPI
PIXELS PER INCH
163 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The LG 27EP950 (W-OLED) is only fair for productivity, while the Cooler Master GZ2711 (W-OLED) is poor.
Cost
$900
$3,000
$0
$1,000
$2,000
$3,000
$4,000
The Cooler Master GZ2711 (W-OLED) has a price of $900 and the LG 27EP950 (W-OLED) costs $3,000.
Digital Photo Editing
Yes
No
The Cooler Master GZ2711 (W-OLED) is suitable for digital photo editing while the LG 27EP950 (W-OLED) is not suitable for digital photo editing.
Print Photo Editing
Yes
No
The Cooler Master GZ2711 (W-OLED) is suitable for print photo editing while the LG 27EP950 (W-OLED) is not suitable for print photo editing.
Key similarities
Casual Gaming
9.7
9.5
2560 x 1440
RESOLUTION
3840 x 2160
240Hz
REFRESH RATE
60Hz
Inf:1
NATIVE CONTRAST
Inf:1
450 nits
SDR PEAK BRIGHTNESS
250 nits
Unknown
HDR PEAK BRIGHTNESS
N/A
98.5 %
DCI-P3 COLOR GAMUT
99.0 %
Matte
COATING
Matte
The Cooler Master GZ2711 (W-OLED) and LG 27EP950 (W-OLED) are both best in class for casual gaming.
Media Consumption
7.9
7.9
2560 x 1440
RESOLUTION
3840 x 2160
Inf:1
NATIVE CONTRAST
Inf:1
450 nits
SDR PEAK BRIGHTNESS
250 nits
Unknown
HDR PEAK BRIGHTNESS
N/A
Matte
COATING
Matte
The Cooler Master GZ2711 (W-OLED) and LG 27EP950 (W-OLED) are both good for media consumption.
HDR Gaming and Media Consumption
Yes
Yes
Both the Cooler Master GZ2711 (W-OLED) and LG 27EP950 (W-OLED) are suitable for HDR gaming and media consumption.
HDR Video Editing and Color Grading
No
No
Both the Cooler Master GZ2711 (W-OLED) and LG 27EP950 (W-OLED) are not suitable for HDR video editing and color grading.
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We’re constantly working to improve.
How the Cooler Master GZ2711 (W-OLED) and the LG 27EP950 (W-OLED) compare to other monitors
Spec Comparison
 |  | |
| Cooler Master GZ2711 (W-OLED) | LG 27EP950 (W-OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$900 | $3,000 | ||
Screen Size | |||
Screen Size | 27" | 27" | |
Resolution | |||
Resolution | 2560 x 1440 | 3840 x 2160 | |
Screen Type | |||
Screen Type | OLED | OLED | |
Screen Sub-type | |||
Screen Sub-type | W-OLED | W-OLED | |
Refresh Rate | |||
Refresh Rate | 240Hz | 60Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | Inf:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 450 nits | 250 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | Unknown | N/A | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | Yes | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | 99 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 0.3 ms | 1 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 | 9.6/10 | |
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 | 6.9/10 | |
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 | 0 | 1 | |
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
We're constantly perfecting our model
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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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