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Cooler Master Tempest GZ2711 27" specifications and in-depth review

Cooler Master Tempest GZ2711 27"

Manufacturer: Cooler Master

The Cooler Master Tempest GZ2711 is a 27-inch OLED gaming monitor designed for users who prioritize fast-paced visual performance and rich color output. Built around an OLED panel, it delivers a contrast ratio of 1,500,000:1, which reflects the inherent light-control characteristics of the display technology. The monitor covers 95.3% of the Adobe RGB color space and renders up to 1.07 billion colors at 10-bit depth, making it suitable for both gaming and color-sensitive workflows.

Running at 240Hz with a 0.03ms response time, the GZ2711 supports AMD FreeSync Premium adaptive sync and connects via two HDMI 2.1 ports, two DisplayPort outputs, USB Type-C, and four USB ports. The panel offers 178-degree horizontal and vertical viewing angles, and the stand supports tilt adjustment along with VESA mount compatibility. Additional features include Picture-in-Picture mode, built-in stereo speakers rated at 2x3W, and an operating power consumption of 55.36W.

Pros
  • The OLED panel delivers a contrast ratio of 1,500,000:1, producing deep blacks and vivid image depth across the screen
  • A 240Hz refresh rate combined with a 0.03ms response time makes it well-suited for fast-paced gaming where motion clarity matters
  • Wide 178-degree viewing angles both horizontally and vertically ensure consistent image quality from off-center positions
  • Connectivity is versatile, with two HDMI 2.1 ports, two DisplayPort outputs, USB Type-C, and four USB ports available
  • 95.3% Adobe RGB coverage and 10-bit color depth at 1.07 billion colors support detailed and nuanced color rendering
  • Picture-in-Picture support allows two video sources to be viewed on screen at the same time
Cons
  • Typical brightness of only 150 nits is quite low, which may limit visibility in well-lit environments
  • The panel lacks both anti-glare coating and a defined matte or glossy surface treatment, leaving surface reflectivity characteristics unclear
  • There is no 3.5mm audio jack, which limits direct headset or speaker connectivity
  • The stand does not support swivel or portrait mode, restricting ergonomic and layout flexibility
  • Hardware color calibration is not supported, which may be a limitation for users requiring precise color accuracy
  • Built-in speakers are limited to 2x3W with no support for Dolby Digital, Dolby Digital Plus, or DTS Surround
Who is this for?

This monitor is well-matched for competitive and fast-paced gaming, where its 240Hz refresh rate and 0.03ms response time help reduce motion blur and input lag in demanding scenarios. The AMD FreeSync Premium support adds further value for users with compatible AMD graphics setups. Its broad color coverage — 95.3% Adobe RGB, 10-bit depth, and 1.07 billion colors — also makes it a reasonable fit for color-aware creative work such as photo editing or digital illustration, where tonal accuracy matters. Users who need flexible video input options will also benefit from the dual HDMI 2.1 and dual DisplayPort connectivity, along with USB Type-C for versatile device hookup.

Who is this NOT for?

At a typical brightness of just 150 nits, this monitor is poorly suited for brightly lit rooms or environments with strong ambient light, where screen visibility would be noticeably compromised. The absence of hardware color calibration support makes it less appropriate for professional color-critical workflows that demand verified and repeatable color accuracy. Users who rely on a flexible ergonomic setup will also find limitations here, as the stand offers only tilt adjustment with no swivel, and portrait mode is not supported — restricting adaptability for multi-monitor or vertical-layout configurations.

Display:

Display type OLED/AMOLED
response time 0.03 ms
screen size 27"
resolution 2560 x 1440 px
pixel density 108 ppi
Adaptive synchronization AMD FreeSync Premium
has anti-glare coating ✕
refresh rate 240Hz
maximum horizontal viewing angle 178º
maximum vertical viewing angle 178º
has a matte panel ✕
has a glossy panel ✕
has a touch screen ✕

The Cooler Master Tempest GZ2711 features a 27-inch OLED/AMOLED panel with a 2560x1440 resolution and a pixel density of 108 ppi, offering a sharp and detailed image across the screen. It runs at a 240Hz refresh rate with an exceptionally low response time of 0.03ms, and supports AMD FreeSync Premium for adaptive synchronization. Viewing angles reach 178 degrees both horizontally and vertically, ensuring consistent image quality across wide angles. The panel does not include anti-glare coating, a matte or glossy surface finish designation, or touch screen functionality.

General info:

Type Gaming
supports total tilt ✓
Has a swivel stand ✕
Supports VESA mount ✓
supports portrait mode ✕

The Cooler Master Tempest GZ2711 is classified as a gaming monitor and comes with a stand that supports tilt adjustment, allowing users to angle the screen to a comfortable position. It is also compatible with VESA mounting solutions for those who prefer wall or arm-based setups. The stand does not offer swivel functionality, and the monitor does not support portrait mode orientation.

Colors:

brightness (typical) 150 nits
supports color calibration ✕
display colors 1070 million
bit depth 10-bit
contrast ratio 1500000:1
Adobe RGB coverage 95.3%

The display delivers a contrast ratio of 1,500,000:1 and renders up to 1,070 million colors at a 10-bit depth, producing a wide tonal range across the image. Adobe RGB coverage sits at 95.3%, reflecting a broad color gamut suitable for color-aware work. Typical brightness is rated at 150 nits, and the monitor does not support hardware color calibration.

Connectivity:

HDMI ports 2
supports Thunderbolt ✕
DisplayPort outputs 2
has a socket for a 3.5 mm audio jack ✕
has a DVI connector ✕
USB ports 4
Has USB Type-C ✓
HDMI version HDMI 2.1
supports Ethernet ✕
supports Wi-Fi ✕
has AirPlay ✕
mini DisplayPort outputs 0
has a VGA connector ✕

The Cooler Master Tempest GZ2711 offers a well-rounded wired connectivity setup, featuring two HDMI 2.1 ports and two DisplayPort outputs for video input, along with four USB ports and a USB Type-C connector. It does not include mini DisplayPort, DVI, or VGA outputs. On the audio and networking side, there is no 3.5mm headset jack, no Ethernet port, and no wireless connectivity such as Wi-Fi or AirPlay. Thunderbolt is also not supported.

Power:

operating power consumption 55.36W

The Cooler Master Tempest GZ2711 has an operating power consumption of 55.36W, which represents its typical draw during active use.

Features:

has PiP ✓
has stereo speakers ✓
has built-in smart TV ✕
audio output power 2 x 3W
has a remote control ✕
supports Dolby Digital ✕
supports Dolby Digital Plus ✕
has DTS Surround ✕
has an ambient light sensor ✕
has a front camera ✕

The Cooler Master Tempest GZ2711 includes built-in stereo speakers rated at 2x3W and supports Picture-in-Picture (PiP), allowing multiple sources to be displayed simultaneously. It does not feature a remote control, ambient light sensor, or front camera, and there is no built-in smart TV platform. On the audio side, the monitor does not support Dolby Digital, Dolby Digital Plus, or DTS Surround sound formats.

Final Verdict

The Cooler Master Tempest GZ2711 presents a focused proposition for users who prioritize display speed and color depth in a 27-inch form factor. Its 240Hz OLED panel with a 0.03ms response time positions it firmly within the fast-paced gaming segment, while the 95.3% Adobe RGB coverage and 1.07 billion colors extend its appeal to users with color-sensitive workflows. That said, the 150-nit typical brightness and lack of ergonomic flexibility — notably the absence of swivel and portrait mode support — mean it demands a controlled environment and a fixed desk setup to perform at its best. For users whose priorities align with its strengths, the GZ2711 delivers a technically capable panel backed by versatile connectivity; those with broader environmental or ergonomic demands may find its constraints meaningful enough to factor carefully into their decision.