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iiyama · IPS · 31.5"

G-Master GB3290QSU-B1

2560×1440 · 240 Hz · Curved

Overall
67
Work
66
Play
76
Amazon
$580
$580
Available on Amazon Updated Sep 4, 2026
Overall67.3
Work66.1
Play75.8
Refresh100.0
Response50.0
Color72.0
Quality / price23.2

Written analysis

G-Master GB3290QSU-B1 at a glance

The G-Master GB3290QSU-B1 is a 31.5" IPS monitor at 2560×1440 and 240 Hz. The panel is curved at 1500R. The backlight is listed as W-LED.

Best fit: everyday work and play where a balanced panel is more important than flagship extras.

Panel and image

Overall quality is 67.3, with 66.1 work and 75.8 play. Pixel density is listed at 93 PPI. Typical brightness is 400 nits. Contrast is listed as 1000:1. The coating is Anti-glare/Matte. The listed pixel count is treated as a QHD-class work multiplier.

Color and HDR

Recorded gamut coverage is 96% sRGB. Color depth is listed as 8-bit.

Motion and sync

Refresh is listed at 240 Hz. The play score covers mainstream gaming and media; competitive high-refresh use still depends on the GPU keeping up. Pair this resolution with the GPU table before assuming native high settings.

Ergonomics and connectivity

Stand and mount options are listed as Height · Swivel · Tilt · VESA (100x100mm). Recorded inputs include 2 x USB 3.2 (Type-C; Gen 1; 5 Gbps; 7.5W), 1 x USB 3.2 (Type-B; Gen 1; 5 Gbps; upstream), 2 x USB 3.2 (Type-A; Gen 1; 5 Gbps; downstream), 2 x HDMI 2.1, 2 x DisplayPort 1.2, 1 x 3.5 mm Audio Out. Speakers are listed as 2 x 2 W (watts).

Buying verdict

Overall quality is 67.3, a strong mainstream result for a primary desktop display.

At the recorded Amazon price, quality / price is 23.2. The nearby comparison below may reveal a better-equipped option at a similar price.

Work / price is 22.8 and play / price is 18.3.

Display data

Full specifications

Panel, color, motion, connectivity, ergonomics, power, and value in one sheet.

General

Manufacturer
iiyama
Monitor
G-Master GB3290QSU-B1
Launch price
Amazon price
$580
Amazon availability
Available
Price updated
Sep 4, 2026
Launch date
Jan 1, 2025

Panel

Size
31.5"
Panel type
IPS
Resolution
2560×1440
Aspect ratio
Pixel density
93 PPI
Brightness
400 nits
Contrast
1000:1
Display area
90.55 in²
Viewing angles
178 ° (degrees) / 178 ° (degrees)
Backlight
W-LED
Coating
Anti-glare/Matte
Curvature
1500R

Color & HDR

Color depth
8-bit
Colors
16777216
DCI-P3
sRGB
96.00%
Adobe RGB
NTSC
72.00%
HDR
Local dimming
No

Motion

Refresh rate
240 Hz
Response time
Input lag
Adaptive sync

Connectivity

Inputs
2 x USB 3.2 (Type-C; Gen 1; 5 Gbps; 7.5W), 1 x USB 3.2 (Type-B; Gen 1; 5 Gbps; upstream), 2 x USB 3.2 (Type-A; Gen 1; 5 Gbps; downstream), 2 x HDMI 2.1, 2 x DisplayPort 1.2, 1 x 3.5 mm Audio Out
Speakers
2 x 2 W (watts)

Ergonomics

Height adjustment
Yes
Pivot
No
Swivel
Yes
Tilt
Yes
VESA mount
Yes · 100x100mm

Power & value

Typical power
40.00 W
Max power
Overall
67.3
Work
66.1
Play
75.8
Quality / price
23.2
Work / price
22.8
Play / price
18.3

Additional information

Features
AMD FreeSync Premium, Black Tuner, Flicker-free technology, HDR Ready, i-Style Color, Low Blue Light, Motion Blur Reduction (MBR), X-Res technology
Display extras
Response time - 1 ms (MPRT - Motion Picture Response Time)
Accessories
DisplayPort cable, HDMI cable, USB cable, Remote control
Amazon dimensions
{'width': 28.1102361918, 'height': 23.9370078496, 'length': 11.417322823, 'weight': None}

Extracted notes sit here. Amazon listing copy, when present, is at the bottom of the page.

Amazon

Price history

Nearby quality

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Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

Desktop Monitor

31.5 inch

QHD LED

IPS technology

240 Hz