Iiyama G-Master GB2591HSU-B1 24.5 " black

Name: Iiyama G-Master GB2591HSU-B1 24.5 " black
Brand: Iiyama

Prices ₁₀ Description Specifications User reviews Ask Question Accessories

Photos - Monitor Iiyama G-Master GB2591HSU-B1 24.5 " black

Photos ₂₀

How to buy

from £139.99 up to £170.99

Compare prices ₁₀ →

When you make a purchase through links on our site, we may receive a affiliate commission.

Box.co.uk →	£140.00	Scan.co.uk →	£139.99
Senetic.co.uk →	£149.08	Pcnova.co.uk →	£148.93
Gamingkit.co.uk →	£148.93	Backtotheoffice.co.uk →	£149.99
Business.Currys.co.uk →	£152.30	AVpartsmaster.co.uk →	£155.54
Quzo.co.uk →	£156.88	Tradeinn.com →	£170.99

add to listmy lists

add to comparison

Iiyama G-Master GB2591HSU-B1 24.5 " black

from £139.99 up to £170.99

Head

Iiyama G-Master GB2591HSU-B1 24.5 " black

2026 G-Master gaming HDMI 2.1 USB-C HDR Adaptive-Sync speakers

Screen size:24.5 "

Resolution:1920x1080 (16:9)

Panel:IPS, MPRT 0.5 ms

Frequency:320 Hz

Contrast:1 000:1

Brightness:350 cd/m²

Functions:HDR, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, Flicker-Free

Connectors:DisplayPort v1.4 • 2xHDMI v2.1

All specifications

Specifications G-Master GB2591HSU-B1

Main
Product type	gaming
Size	24.5 "


Screen
Panel type	IPS
Resolution	1920x1080 (16:9)
FPS	320 Hz
Pixel size	0.28 mm
Response time (MPRT)	0.5 ms
Vertical viewing angle	178 °
Horizontal viewing angle	178 °
Brightness	350 cd/m²
Static contrast	1 000:1
Dynamic Contrast	100 000 000:1
Colour depth	8-bit (16.7M Colors)
HDR	+


Connection
Video transmission	DisplayPort v1.4 2xHDMI v2.1
USB-A hub	2x5Gbps
USB-C hub	2x5Gbps
Connectors (optional)	mini-Jack output (3.5 mm)

Features
Features	Flicker-Free NVIDIA G-Sync Compatible Adaptive-Sync
Portrait pivot
Screen swivel	/ +- 45° /
Height adjustment	/ 150 mm /
Speakers
Sound power	2x4 W
Game Features	brighten darker areas / Black Tuner /


General
Wall mount	VESA 100x100mm
Power consumption	30 W
Energy class (new)	E
Dimensions (WxHxD)	557x532x213 mm
Dimensions without stand (WxHxD)	557x324x56 mm
Weight	5.3 kg
Official Website	iiyama.com
Added to E-Catalog	February 2026

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.

How to Choose a Gaming MonitorWe understand matrix types, suitable resolution, FreeSync and other important aspects when choosing a gaming monitor

Buy Iiyama G-Master GB2591HSU-B1 24.5 " black

All prices 10 →

When you make a purchase through links on our site, we may receive a affiliate commission.


	iiyama G-Master GB2591HSU 25" Fast IPS Full HD 320Hz 0.4ms G-Sync Height Adjustable Gaming Monitor GB2591HSU-B1 Unleash your gaming potential with the iiyama G-Master GB2591HSU 25" Fast IPS Full HD 320Hz 0.4ms Gaming Monitor, GB2591HSU-B... more1. Fast UK delivery at Box. Box.co.uk Delivery: to United Kingdom Report	£140.00 Buy in shop

	iiyama G-Master GOLD PHOENIX GB2591HSU-B1 25” FHD 320Hz G-Sync Compati Scan.co.uk Delivery: to United Kingdom Report	£139.99 Buy in shop

	iiyama GB2591HSU-B1 G-Master Gaming Monitor 25" Fast IPS GB2591HSU-B1 iiyama G-MASTER GB2591HSU-B1. Display diagonal: 62.2 cm (24.5"), Display resolution: 1920 x 1080 pixels, HD type: Full HD, Di... moresplay technology: LED, Display surface: Matt, Response time: 0.4 ms, Native aspect ratio: 16:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. Built-in speaker(s). Built-in USB hub, USB hub version: 3.2 Gen 1 (3.1 Gen 1). VESA mounting, Height adjustment. Product colour: Black... Senetic.co.uk Delivery: to United Kingdom Report	£149.08 Buy in shop

	iiyama G-MASTER GB2591HSU-B1 computer monitor 62.2 cm (24.5") 192 iiyama G-MASTER GB2591HSU-B1 computer monitor 62.2 cm (24.5") 1920 x 1080 pixels Full HD LED Black The G-Master GB2591HSU-B1... moreis crafted to help you unleash your full gaming potential. With G-Sync Compatibility for smooth. tear-free gameplay and a 320Hz refresh rate. every movement feels fast and fluid. The 24.5” Fast IPS panel delivers clear. sharp visuals. while the 0.4ms response ensures you stay ahead in every game. without ever being held back by your gear. For added ergonomic comfort. the monitor includes a 150mm height-adjustable stand to fit your setup perfectly. Pcnova.co.uk Delivery: in United Kingdom Report	£148.93 Buy in shop

	iiyama G-MASTER GB2591HSU-B1 computer monitor 62.2 cm (24.5") 192 The G-Master GB2591HSU-B1 is crafted to help you unleash your full gaming potential. With G-Sync Compatibility for smooth. te... morear-free gameplay and a 320Hz refresh rate. every movement feels fast and fluid. The 24.5” Fast IPS panel delivers clear. sharp visuals. while the 0.4ms response ensures you stay ahead in every game. without ever being held back by your gear. For added ergonomic comfort. the monitor includes a 150mm height-adjustable stand to fit your setup perfectly. iiyama G-MASTER GB2591HSU-B1 computer monitor 62.2 cm (24.5") 1920 x 1080 pixels Full HD LED Black Gamingkit.co.uk Delivery: in United Kingdom Report	£148.93 Buy in shop

5 more offer(s)

Series Iiyama G-Master (gaming)Compare using chart →

Iiyama G-Master G4380UHSU-B2

from £446.39

gaming, 42.5 ", 4K, 3840x2160 (16:9), *VA, MPRT 0.3 ms, 144 Hz, 8-bit + FRC (1.07B Colors), HDMI, v 2.1, DisplayPort, HUB: USB-A 4x5Gbps, speakers, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master GB3261UHSCP-B1

from £239.99

gaming, 31.5 ", 4K, 3840x2160 (16:9), *VA, MPRT 0.6 ms, 144 Hz, 8-bit + FRC (1.07B Colors), HDMI, v 2.1, DisplayPort, USB-C (DP Alt Mode), Power Delivery, HUB: USB-A 2x5Gbps, USB-C 2x5Gbps, KVM switch, speakers, AMD FreeSync Premium, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master GB2771UHSU-B1

from £172.99

gaming, 27 ", 4K, 3840x2160 (16:9), IPS, MPRT 0.8 ms, 144 Hz, 288 Hz (Full HD), 8-bit + FRC (1.07B Colors), HDMI, v 2.1, DisplayPort, HUB: USB-A 2x5Gbps, USB-C 2x5Gbps, speakers, AMD FreeSync Premium, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master GOB2701QSC-B1

from £417.99

gaming, 27 ", 2560x1440 (16:9), WOLED, response 0.03 ms, 280 Hz, 10-bit (1.07B Colors), sRGB 150 %, HDMI, v 2.1, DisplayPort, HUB: USB-A 2x5Gbps, USB-C 1x5Gbps, KVM switch, speakers, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master G2771QS-B1

from £131.99

gaming, 27 ", 2560x1440 (16:9), IPS, MPRT 0.5 ms, 200 Hz, 8-bit + FRC (1.07B Colors), HDMI, DisplayPort, speakers, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master GB2771QSU-B1

from £139.99

gaming, 27 ", 2560x1440 (16:9), IPS, MPRT 0.5 ms, 200 Hz, 8-bit + FRC (1.07B Colors), HDMI, DisplayPort, HUB: USB-A 2x5Gbps, USB-C 2x5Gbps, speakers, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master GB3272QSU-B1

from £147.99

gaming, 31.5 ", 2560x1440 (16:9), IPS, MPRT 0.5 ms, 180 Hz, HDMI, DisplayPort, HUB: USB-A 2x5Gbps, USB-C 2x5Gbps, speakers, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master G2741QSU-B1

from £139.10

gaming, 27 ", 2560x1440 (16:9), IPS, MPRT 1 ms, 144 Hz, 16.7M Colors, sRGB 100 %, HDMI, DisplayPort, HUB: USB-A 2x2.0, speakers, NVIDIA G-Sync Compatible

compare

Iiyama G-Master GB2471HS-B1

from £110.00

gaming, 23.8 ", 1920x1080 (16:9), IPS, MPRT 0.3 ms, 240 Hz, 8-bit (16.7M Colors), HDMI, DisplayPort, speakers, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master GB3290QSU-B1

from £148.99

gaming, 31.5 ", 2560x1440 (16:9), IPS, MPRT 1 ms, 240 Hz, 16.7M Colors, sRGB 96 %, HDMI, v 2.1, DisplayPort, HUB: USB-A 2x5Gbps, USB-C 2x5Gbps, speakers, AMD FreeSync Premium, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master GB2591HSU-B1

from £139.99

gaming, 24.5 ", 1920x1080 (16:9), IPS, MPRT 0.5 ms, 320 Hz, 8-bit (16.7M Colors), HDMI, v 2.1, DisplayPort, HUB: USB-A 2x5Gbps, USB-C 2x5Gbps, speakers, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master G2771HSU-B1

from £109.99

gaming, 27 ", 1920x1080 (16:9), IPS, MPRT 0.4 ms, 240 Hz, 8-bit (16.7M Colors), HDMI, DisplayPort, HUB: USB-A 1x5Gbps, USB-C 1x5Gbps, speakers, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master G2471HS-B1

from £98.99

gaming, 23.8 ", 1920x1080 (16:9), IPS, MPRT 0.3 ms, 240 Hz, 8-bit (16.7M Colors), HDMI, DisplayPort, speakers, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master GB2770QSU-B6

from £178.99

gaming, 27 ", 2560x1440 (16:9), IPS, MPRT 0.2 ms, 180 Hz, 8-bit (16.7M Colors), HDMI, DisplayPort, HUB: USB-A 4x5Gbps, speakers, VESA Adaptive-Sync

compare

Iiyama G-Master GB3295QSU-B1

from £199.99

gaming, 31.5 ", 2560x1440 (16:9), *VA, MPRT 0.4 ms, 240 Hz, 8-bit + FRC (1.07B Colors), HDMI, v 2.1, DisplayPort, HUB: USB-A 2x5Gbps, USB-C 2x5Gbps, speakers, AMD FreeSync Premium, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master GC2781HSU-B1

from £98.99

gaming, 27 ", 1920x1080 (16:9), curved 1500R, *VA, MPRT 1 ms, 144 Hz, 8-bit (16.7M Colors), sRGB 99 %, HDMI, DisplayPort, HUB: USB-A 2x2.0, speakers, AMD FreeSync, VESA Adaptive-Sync

compare

Iiyama G-Master GB2441HSU-B1

from £89.99

gaming, 23.8 ", 1920x1080 (16:9), IPS, MPRT 1 ms, 144 Hz, 16.7M Colors, sRGB 100 %, HDMI, DisplayPort, HUB: USB-A 2x2.0, speakers, AMD FreeSync, VESA Adaptive-Sync

compare

Iiyama G-Master GB2791QSU-B1

from £207.49

gaming, 27 ", 2560x1440 (16:9), IPS, MPRT 0.6 ms, 320 Hz, 8-bit (16.7M Colors), HDMI, v 2.1, DisplayPort, HUB: USB-A 2x5Gbps, USB-C 2x5Gbps, speakers, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master GB2771HSU-B1

from £128.99

gaming, 27 ", 1920x1080 (16:9), IPS, MPRT 0.4 ms, 240 Hz, 8-bit (16.7M Colors), HDMI, DisplayPort, HUB: USB-A 1x5Gbps, USB-C 1x5Gbps, speakers, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

Iiyama G-Master G2741HSU-B1

from £99.98

gaming, 27 ", 1920x1080 (16:9), IPS, MPRT 1 ms, 144 Hz, 16.7M Colors, sRGB 100 %, HDMI, DisplayPort, HUB: USB-A 2x2.0, speakers, AMD FreeSync

compare

AccessoriesAll accessories for Iiyama G-Master GB2591HSU-B1 →

SimilarCompare using chart →

Lenovo Legion 25-10

from £123.99

gaming, 24.5 ", 1920x1080 (16:9), IPS, response 1 ms, MPRT 0.5 ms, 320 Hz, 8-bit (16.7M Colors), sRGB 99 %, HDMI, v 2.1, DisplayPort, AMD FreeSync Premium, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR, TÜV Rheinland

compare

Samsung Odyssey OLED G80SD 32

from £679.00

gaming, smart, 32 ", 4K, 3840x2160 (16:9), QD-OLED, response 0.03 ms, 240 Hz, 10-bit (1.07B Colors), DCI-P3 99 %, HDMI, v 2.1, DisplayPort, Bluetooth, Wi-Fi, HUB: USB-A 2x5Gbps, speakers, AMD FreeSync Premium Pro, VESA Adaptive-Sync, HDR

compare

Asus ROG Strix OLED XG32UCWG

from £670.56

gaming, 31.5 ", 4K, 3840x2160 (16:9), WOLED, response 0.03 ms, 165 Hz, 330 Hz (Full HD), 10-bit (1.07B Colors), DCI-P3 99 %, HDMI, v 2.1, DisplayPort, USB-C (DP Alt Mode), Power Delivery, HUB: USB-A 3x5Gbps, KVM switch, AMD FreeSync Premium Pro, NVIDIA G-Sync Compatible, HDR, TÜV Rheinland

compare

Dell Alienware AW2525HM

from £185.99

gaming, 24.5 ", 1920x1080 (16:9), IPS, response 0.5 ms, 320 Hz, 16.7M Colors, sRGB 99 %, HDMI, v 2.1, DisplayPort, HUB: USB-A 2x5Gbps, AMD FreeSync Premium, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR

compare

MSI MAG 322URDF E16

from £329.00

gaming, 31.5 ", 4K, 3840x2160 (16:9), IPS, response 0.5 ms, 160 Hz, 320 Hz (Full HD), 8-bit + FRC (1.07B Colors), sRGB 131 %, DCI-P3 99 %, HDMI, v 2.1, DisplayPort, HUB: USB-A 2x2.0, VESA Adaptive-Sync, HDR, TÜV Rheinland

compare

Gigabyte MO32U2

from £599.99

gaming, 31.5 ", 4K, 3840x2160 (16:9), QD-OLED, response 0.03 ms, 240 Hz, 10-bit (1.07B Colors), DCI-P3 99 %, HDMI, v 2.1, DisplayPort, USB-C (DP Alt Mode), Power Delivery, HUB: USB-A 2x5Gbps, KVM switch, speakers, AMD FreeSync Premium Pro, NVIDIA G-Sync Compatible, HDR

compare

AOC Q27G41ZDF

from £339.95

gaming, 26.5 ", 2560x1440 (16:9), QD-OLED, response 0.03 ms, 240 Hz, sRGB 147.6 %, DCI-P3 99.1 %, HDMI, DisplayPort, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR, TÜV Rheinland

compare

Asus ROG Strix XG27ACSR

from £218.99

gaming, 27 ", 2560x1440 (16:9), IPS, response 1 ms, 220 Hz, 10-bit (1.07B Colors), sRGB 133 %, DCI-P3 97 %, HDMI, v 2.1, DisplayPort, USB-C (DP Alt Mode), Power Delivery, AMD FreeSync Premium, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR, TÜV Rheinland

compare

Gigabyte M27Q2 QD

from £179.99

gaming, 27 ", 2560x1440 (16:9), QD-IPS, response 1 ms, 200 Hz, 1.07B Colors, sRGB 150 %, DCI-P3 99 %, HDMI, DisplayPort, USB-C (DP Alt Mode), Power Delivery, HUB: USB-A 2x5Gbps, KVM switch, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR, TÜV Rheinland

compare

Dell UltraSharp U2725QE

from £384.00

for graphics, 27 ", 4K, 3840x2160 (16:9), IPS, response 5 ms, 120 Hz, 1.07B Colors, sRGB 100 %, DCI-P3 99 %, HDMI, v 2.1, DisplayPort, USB-C (Thunderbolt v4), Power Delivery, LAN, HUB: USB-A 5x10Gbps, USB-C 2x10Gbps, KVM switch, VESA Adaptive-Sync, HDR, CalMAN Verified, TÜV Rheinland

compare

Gigabyte M27UP

from £227.99

gaming, 27 ", 4K, 3840x2160 (16:9), IPS, response 1 ms, 160 Hz, 320 Hz (Full HD), 1.07B Colors, sRGB 125 %, DCI-P3 95 %, HDMI, v 2.1, DisplayPort, USB-C (DP Alt Mode), Power Delivery, HUB: USB-A 3x5Gbps, KVM switch, speakers, AMD FreeSync Premium, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, HDR, TÜV Rheinland

compare

Gigabyte GO27Q24G

from £299.00

gaming, 27 ", 2560x1440 (16:9), WOLED, response 0.03 ms, 240 Hz, 10-bit (1.07B Colors), DCI-P3 99 %, HDMI, v 2.1, DisplayPort, USB-C (DP Alt Mode), AMD FreeSync Premium, NVIDIA G-Sync Compatible, HDR, TÜV Rheinland

compare

Iiyama G-Master GB2591HSU-B1 24.5 " black

Buy Iiyama G-Master GB2591HSU-B1 24.5 " black

iiyama G-Master GB2591HSU 25" Fast IPS Full HD 320Hz 0.4ms G-Sync Height Adjustable Gaming Monitor GB2591HSU-B1

iiyama G-Master GOLD PHOENIX GB2591HSU-B1 25” FHD 320Hz G-Sync Compati

iiyama GB2591HSU-B1 G-Master Gaming Monitor 25" Fast IPS GB2591HSU-B1

iiyama G-MASTER GB2591HSU-B1 computer monitor 62.2 cm (24.5") 192

iiyama G-MASTER GB2591HSU-B1 computer monitor 62.2 cm (24.5") 192