TurboVS
iiyama G-Master GCB4580DQSN-B1 Red Eagle 45" specifications and in-depth review

iiyama G-Master GCB4580DQSN-B1 Red Eagle 45"

Manufacturer: iiyama

The iiyama G-Master GCB4580DQSN-B1 Red Eagle 45″ is a curved ultrawide gaming monitor built around a 44.5-inch VA panel running at a 5120x1440 resolution. It delivers a 165Hz refresh rate and a 0.8ms response time, with a matte panel finish and 178-degree horizontal and vertical viewing angles. The display covers 100% of the sRGB color space across 16.7 million colors at 8-bit depth, and reaches a typical brightness of 450 nits with a 3000:1 contrast ratio.

Connectivity is handled through two HDMI 2.1 ports, one DisplayPort 1.4 output, a USB Type-C port, four USB ports, a 3.5mm audio jack, and a built-in Ethernet port. Wi-Fi and Thunderbolt are not supported. The monitor includes stereo speakers rated at 2x3W and supports VESA mounting and tilt adjustment, though swivel and portrait mode are not available. Operating power consumption is rated at 37W, with a standby draw of 0.5W, and the unit carries an EU energy label of F.

Pros
  • 5120x1440 resolution across a 44.5-inch curved ultrawide panel provides a wide field of view for gaming and multitasking
  • 165Hz refresh rate and 0.8ms response time suit fast-paced gaming scenarios
  • 100% sRGB coverage and a 3000:1 contrast ratio deliver strong color accuracy and depth for a VA panel
  • Two HDMI 2.1 ports alongside DisplayPort 1.4 and USB Type-C offer flexible input options for multiple devices
  • Built-in Ethernet port adds wired network connectivity directly through the monitor
  • VESA mount support gives users the option to use a third-party arm or wall mount
Cons
  • EU energy label of F indicates relatively low energy efficiency for a monitor
  • No swivel stand and no portrait mode limit ergonomic flexibility
  • Color calibration is not supported, which may be a drawback for color-sensitive workflows
  • No anti-glare coating despite the matte panel finish
  • No PiP support restricts simultaneous use of multiple input sources on screen
  • Stereo speakers are rated at only 2x3W with no support for Dolby Digital, Dolby Digital Plus, or DTS Surround
Who is this for?

This monitor suits gamers and productivity users who want a curved ultrawide setup with a wide horizontal field of view across a 44.5-inch VA panel. The 165Hz refresh rate and 0.8ms response time make it a practical choice for fast-paced gaming, while the 5120x1440 resolution provides enough screen real estate for running multiple applications side by side. Users who connect several devices will benefit from the dual HDMI 2.1 inputs, DisplayPort 1.4, USB Type-C, and the built-in Ethernet port, which together support a well-equipped desktop workstation.

Who is this NOT for?

Users who need precise color work will find this monitor limiting, as it does not support color calibration despite its 100% sRGB coverage. Those who require flexible ergonomic positioning will be constrained by the absence of a swivel stand and no portrait mode capability. The monitor is also not well suited to users who rely on audio format decoding, as Dolby Digital, Dolby Digital Plus, and DTS Surround are all unsupported, and the onboard speakers are rated at just 2x3W — making it a poor fit for anyone expecting meaningful audio output from the display itself.

Display:

Display type LED-backlit, LCD, VA
response time 0.8 ms
screen size 44.5"
resolution 5120 x 1440 px
pixel density 119 ppi
has anti-glare coating ✕
refresh rate 165Hz
maximum horizontal viewing angle 178º
maximum vertical viewing angle 178º
has a matte panel ✓
has a glossy panel ✕
has a touch screen ✕

The monitor uses a 44.5-inch LED-backlit LCD VA panel with a resolution of 5120x1440 pixels at 119 ppi, a 165Hz refresh rate, and a 0.8ms response time. Viewing angles reach 178 degrees both horizontally and vertically, and the panel has a matte finish without an anti-glare coating. It is not a glossy or touch-enabled display.

General info:

Type Gaming, Curved, Ultrawide
EU energy label F
supports total tilt ✓
Has a swivel stand ✕
Supports VESA mount ✓
height 409 mm
width 1090 mm
thickness 275 mm
weight 11200 g
supports portrait mode ✕
volume 122597.75 cm³

This is a curved ultrawide gaming monitor that supports tilt adjustment and VESA mounting, though it does not offer a swivel stand or portrait mode capability. It measures 1090mm wide, 409mm tall, and 275mm deep, weighing 11,200g, and carries an EU energy label of F.

Colors:

brightness (typical) 450 nits
supports color calibration ✕
display colors 16.7 million
bit depth 8-bit
contrast ratio 3000:1
sRGB coverage 100%

The display offers a typical brightness of 450 nits, a 3000:1 contrast ratio, and covers 100% of the sRGB color space across 16.7 million colors at 8-bit depth. Color calibration is not supported on this model.

Connectivity:

HDMI ports 2
supports Thunderbolt ✕
DisplayPort outputs 1
DisplayPort version DisplayPort 1.4
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 monitor provides two HDMI 2.1 ports, one DisplayPort 1.4 output, a USB Type-C port, four USB ports, a 3.5mm audio jack, and a built-in Ethernet port for wired network connectivity. There is no DVI connector, VGA connector, mini DisplayPort output, Thunderbolt support, Wi-Fi, or AirPlay.

Power:

operating power consumption 37W
standby power consumption 0.5W

The monitor draws 37W during normal operation and drops to 0.5W in standby mode.

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 monitor includes stereo speakers rated at 2x3W but does not support Dolby Digital, Dolby Digital Plus, or DTS Surround. There is no PiP functionality, no remote control, no ambient light sensor, no front camera, and no built-in smart TV capability.

Final Verdict

The iiyama G-Master GCB4580DQSN-B1 Red Eagle 45″ is a curved ultrawide gaming monitor that makes a strong case for users who want a large, fast display with a well-rounded connectivity suite. Its 5120x1440 resolution paired with a 165Hz refresh rate and 0.8ms response time positions it squarely within the gaming segment, while dual HDMI 2.1 ports, DisplayPort 1.4, USB Type-C, and a built-in Ethernet port give it genuine versatility as a desktop hub. The absence of color calibration, limited ergonomic adjustability, and a low EU energy rating are worth noting, but these are trade-offs that sit outside its primary use case. For users building a gaming-focused ultrawide workstation who value screen size and input flexibility over color-critical precision, the Red Eagle 45″ covers the essentials with few meaningful gaps.

Popular Comparisons

iiyama G-Master GCB4580DQSN-B1 Red Eagle 45"
iiyama G-Master GCB4580DQSN-B1 Red Eagle 45"
VS
iiyama Prolite XCB4594DQSN-B1 45"
iiyama Prolite XCB4594DQSN-B1 45"