The Gigabyte G27U is a 27-inch gaming monitor that combines an incredibly detailed 4K UHD image and a high refresh rate. The Dual Mode function allows you to switch between 4K UHD at 160 Hz and Full HD at as much as 320 Hz, making the monitor suitable for both visually demanding AAA games and fast-paced competitive games.

Advantages

* Dual Mode allows you to choose between 4K UHD at 160 Hz and Full HD at 320 Hz
* 27-inch SuperSpeed IPS panel for fast response and high-quality color display
* 1ms GTG response time for sharp display of fast motion
* G-SYNC Compatible and AMD FreeSync Premium support for smooth gameplay
* VESA DisplayHDR 400 for improved display of bright and dark areas of the image
* 95% DCI-P3 and 122% sRGB color space
* Display 1.07 billion colors
* Tactical Switch 2.0 for quick access to gaming settings
* Aim Stabilizer Sync helps reduce blur in fast-moving action
* Smart OD automatically optimizes overdrive setting
* Flicker-Free and Low Blue Light for more comfortable long-term use
* Full HDMI 2.1 bandwidth up to 48 Gbps
* Ergonomic stand with adjustable height, tilt, swivel and pivot
* VESA 100×100mm wall mount support

Specifications

* Type: gaming monitor
* Brand: Gigabyte
* Model: G27U
* Screen diagonal: 27″
* Panel type: SuperSpeed IPS
* Resolution: 3840×2160 (4K UHD)
* Dual Mode: yes
* Maximum frequency at UHD: 160 Hz
* Maximum frequency at Full HD: 320 Hz
* Response time: 1ms GTG
* Brightness: 350 cd/m²
* Contrast ratio: 1000:1
* Viewing angle: 178° horizontal / 178° vertical
* Color gamut: 95% DCI-P3 / 122% sRGB
* Number of colors: 1.07 billion
* HDR: VESA DisplayHDR 400
* G-SYNC Compatible: yes
* AMD FreeSync Premium: yes
* Flicker-Free: yes
* Low Blue Light: yes
* Screen surface: anti-glare
* HDMI: 2 × HDMI 2.1
* DisplayPort: 1 × DisplayPort 1.4 with DSC
* USB: 1 × USB 2.0 downstream, dedicated to firmware update
* Headphone output: yes
* Built-in speakers: no
* Height adjustment: up to 130 mm
* Tilt: from –5° to +21°
* Rotation: ±15°
* Pivot: 0° to +90° clockwise
* VESA: 100 × 100 mm
* Kensington lock: yes
* Power consumption: 23.08W
* Dimensions with stand: 612 × 515 × 192 mm
* Dimensions without stand: 612 × 371 × 59 mm
* Weight with stand: approx. 6.96 kg
* Weight without stand: approx. 5.35 kg
* Color: black
* Included: power cable, DisplayPort cable, quick start guide and warranty card

The Gigabyte G27U combines high 4K resolution with the speed required by competitive gaming. With the ability to switch to Full HD at 320 Hz, a responsive SS IPS panel, HDMI 2.1, and an adjustable ergonomic stand, it is a great choice for gamers who want a single monitor for image quality and high display speed.

It is important to know

When choosing a monitor with 4K resolution and high refresh rate, it is crucial to consider how the display's features will affect the ergonomics of work and the display of the image in your environment. Also important are the connectivity support on your computer and the question of its actual suitability for multitasking or advanced gaming experience. Before purchasing, we recommend paying special attention to the configuration of your workspace, cables and content sources.

• Proper cable selection and connection settings are essential for utilizing the full capabilities of the monitor (e.g. 4K at higher refresh rates requires a quality cable and a supported connection on the computer).
• Because a 27-inch 4K monitor has a very high pixel density, system scaling can become important for comfortable use, especially when working with text or in applications that are not fully adapted to a 4K environment.
• If you want a dual-monitor setup, it is recommended to use monitors with as similar diagonals and resolutions as possible, as a large difference in sharpness can negatively impact the user experience.
• A high refresh rate brings a better gaming experience and a smoother display during fast window movements or scrolling, but the source device must also be capable of transmitting such a signal.
• The IPS display offers good versatility even for extended text reading, but may have some limitations in contrast compared to OLED or VA panels.

Source of editorial recommendations: ENAA guides and team experience.

In practice

🟢 Multitasking and working with two monitors

The 27” monitor with 4K resolution strongly supports layouts for working with multiple windows, spreadsheets or documents at the same time; the same diagonal and resolution on both screens is recommended for sharpness and easier scaling.

🟢 Gaming with high refresh rates

160 Hz (and FHD up to 320 Hz) allows for a smooth gaming experience and fast responsiveness, but to take advantage of these values, you need a sufficiently powerful computer and a proper connection via the latest generation DisplayPort or HDMI.

🟢 Creative work and occasional graphic design

The 4K resolution and SS IPS panel provide sharp images and good color accuracy; for advanced graphics projects, professional users may want an even higher color gamut or specialized calibration.

🟡 Basic office work and everyday use

The monitor is suitable for everyday use and reading texts, but due to the high resolution at 27", it may be necessary to set larger system scales for readability in certain applications or poorly adapted web interfaces.

🟡 Connecting a laptop via various interfaces

For easy connection to laptops, make sure your laptop has proper support for 4K at higher refresh rates and that the cable is certified for the required bandwidth; otherwise, you may be limited to lower refresh rates or resolutions.

Answers to frequently asked questions

What should I check when connecting a monitor to a computer?

Make sure that your computer and connection (DisplayPort, HDMI) support the appropriate resolution and refresh rate, and choose an appropriate cable that allows the transmission of a 4K signal at the desired frequency.

Is the monitor suitable for working with multiple windows or applications at the same time?

Yes, 4K resolution on 27 inches allows for multiple open windows, but it is recommended to adjust text scaling for comfortable work.

How does this monitor perform when combined with another smaller or less sharp screen?

Combining with monitors of different resolutions or sizes can cause differences in image sharpness and more demanding scaling, which can be annoying during prolonged use.

Is this monitor suitable for working with texts and spreadsheets?

Yes, the SS IPS panel and high resolution offer a sharp and clear image for longer text work, but for an optimal experience, it is important to set the appropriate scaling in the operating system.

Description updated: August 2026

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