iiyama G-MASTER GB2791QSU-B1 27″ 320Hz Monitor

27 inch · 2560 x 1440 · 320 Hz · IPS

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Screen size 27 inch
Resolution 2560 x 1440
Refresh rate 320 Hz
Panel IPS

iiyama G-MASTER GB2791QSU-B1 27″ 320Hz Monitor is a 27-inch monitor with 2560 x 1440 resolution, a 320 Hz refresh rate and IPS panel. The high refresh rate makes fast games look smoother. It came out in 2026.

Released: 2026-01-16

Specifications

Key specs

Screen size: 27 inch
Resolution: 2560 x 1440
Refresh rate: 320 Hz
Panel: IPS
Released: 2026-01-16
Part number: GB2791QSU-B1
EAN / UPC: 4948570126859

Display

Display diagonal: 68.6 cm (27")
Display resolution: 2560 x 1440 pixels
HD type: Wide Quad HD
Native aspect ratio: 16:9
Display technology: LCD
Panel type: IPS
Display brightness (typical): 350 cd/m²
Response time (MPRT): 0.6 ms
Display surface: Matt
Screen shape: Flat
Contrast ratio (typical): 1000:1
Contrast ratio (dynamic): 80000000:1
Maximum refresh rate: 320 Hz
Viewing angle, horizontal: 178°
Viewing angle, vertical: 178°
Display number of colours: 16.7 million colours
Pixel pitch: 0.233 x 0.233 mm
Horizontal scan range: 30 - 550 kHz
Viewable size, horizontal: 59.7 cm
Viewable size, vertical: 33.6 cm
Display diagonal (metric): 68.5 cm
High Dynamic Range (HDR) supported: Yes
High Dynamic Range (HDR) technology: High Dynamic Range 10 (HDR10)
Colour depth: 8 bit

Performance

NVIDIA G-SYNC: Yes
NVIDIA G-SYNC type: G-SYNC Compatible
AMD FreeSync: Yes
AMD FreeSync type: FreeSync Premium
Flicker-free technology: Yes
Low Blue Light technology: Yes

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Multimedia

Number of speakers: 2
RMS rated power: 4 W
Built-in speaker(s): Yes

Design

Market positioning: Gaming
Product colour: Black

Ports & interfaces

Built-in USB hub: Yes
USB hub version: 3.2 Gen 1 (3.1 Gen 1)
Number of downstream ports: 4
USB Type-A downstream ports quantity: 2
USB Type-C downstream ports quantity: 2
HDMI: Yes
HDMI ports quantity: 2
HDMI version: 2.1
DisplayPorts quantity: 1
DisplayPort version: 1.4
Headphone out: Yes
HDCP: Yes

Ergonomics

VESA mounting: Yes
Panel mounting interface: 100 x 100 mm
Cable management: Yes
Cable lock slot: Yes
Cable lock slot type: Kensington
Height adjustment: Yes
Adjustable height (max): 15 cm
Pivot: Yes
Swivelling: Yes
Swivel angle range: -45 - 45°
Tilt adjustment: Yes

Power

Energy efficiency class (SDR): F
Energy efficiency class (HDR): G
Energy consumption (SDR) per 1000 hours: 23.5 kWh
Power consumption (typical): 24 W
Power consumption (standby): 0.5 W
Power consumption (off): 0.3 W
AC input voltage: 100 - 240 V
AC input frequency: 50/60 Hz
Power supply type: Internal
Energy efficiency scale: A to G

Weight & dimensions

Width (with stand): 612 mm
Depth (with stand): 403.5 mm
Height (with stand): 313 mm
Weight (with stand): 5.8 kg
Height (without stand): 313 mm
Weight (without stand): 4 kg

Other features

Packaging content: quick start guide, safety guide
Weight: 5.8 kg
Height: 313 mm
Width: 612 mm
Control panel: power switch, joystick, menu (center), up / signal select, down / shortcut, left / volume -, right / volume +
Compliance certificates: CE, EAC, PSE, REACH, RoHS, TÜV mark, UKCA, VCCI, WEEE

Technical details

Native refresh rate: 60 Hz

Check the manufacturer's page before buying.

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About this product

Control the game with the 320Hz GB2791QSU Gold Phoenix The Gold Phoenix is the ultimate monitor choice allowing you to exceed your gaming potential. Packed with the latest technologies, including FreeSync Premium, the 27 inch Gold Phoenix features a 320Hz refresh rate and a stunning 0.6ms MPRT response time, making sure your equipment will never hold you back. Fast IPS panel technology guarantees superb image quality, and the ability to adjust brightness and the dark shades with the Black Tuner delivers greater viewing performance in shadowed areas. To ensure comfort during marathon gaming sessions, you can easily adjust the screen position to your preferences thanks to the height adjustable stand.

User manual (PDF) · Datasheet (PDF)

GB2791QSU-B1 vs similar monitors

	iiyama G-MASTER GB2791QSU-B1 27″ 320Hz Monitor	TCL 27P2A Pro	Gigabyte G27Q3 27" 2K QHD Gaming Monitor	Gigabyte G27Q26 27” QHD Gaming Monitor
Screen size	27 inch	27 inch	27 inch	27 inch
Resolution	2560 x 1440	2560 x 1440	2560 x 1440	2560 x 1440
Refresh rate	320 Hz	320 Hz	320 Hz	275 Hz
Panel	IPS	IPS	IPS	IPS
Released	2026	2026	2026	2026