Iiyama G-Master GCB4580DQSN-B1 review: an enormous ultrawide monitor with appealing features

Good speed and resolution help offset the problem of finding somewhere to put it.

Iiyama G-Master GCB4580DQSN-B1
(Image: © Future/Ian Evenden)

Our Verdict

As ultrawide monitors go, the Iiyama G-Master GCB4580DQSN-B1 isn't the biggest, but it's up there with the best. You get a good range of inputs, a KVM switch, 165Hz refresh rate and as many pixels as two screens side-by-side. The only problem is where to put it.

For

  • Big. Like, really big
  • Lots of inputs
  • KVM

Against

  • Too big?
  • Back hard to access
  • No picture-in-picture

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Is there such a thing as too big when it comes to monitors? The days of using Quark Xpress on 17-inch CRTs may be behind us, but surely there's no need for anything bigger than those 20in Sony Trinitrons that were popular around the turn of the millennium. Iiyama begs to differ, with a 45-inch ultrawide screen that’s going to make you wonder if you need a bigger desk, perhaps even a bigger building, to house it.

Iiyama G-Master GCB4580DQSN-B1

(Image credit: Future/Ian Evenden)
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Screen size:45in
Panel:VA
Resolution:5120x1440
Brightness:450 nits (stated)
Refresh rate:165Hz
Audio:2x 3W speakers
Connectivity:2x HDMI 2.1, 1x DisplayPort 1.4, USB-C (90W PD), 3x USB 3.2 Gen 1 Type A, 1x USB 3.2 Gen 1 Type-B, 3.5mm headphones, Ethernet
Dimensions:1090 x 539 x 275mm
Weight:11.2kg
HP Z34c G3

HP Z34c G3
This 34in ultrawide has good colour accuracy, but only a 60Hz maximum refresh rate.

Iiyama G-MASTER GCB3480WQSU-B1

Iiyama G-MASTER GCB3480WQSU-B1
Essentially a smaller version of the 45-incher here, it’s cheaper but has less resolution.

Dell UltraSharp U4924DW

Dell UltraSharp U4924DW
A ludicrous 49 inches across the diagonal, the Dell is bigger but slightly less bright.

The Verdict
8

out of 10

Iiyama G-Master GCB4580DQSN-B1

As ultrawide monitors go, the Iiyama G-Master GCB4580DQSN-B1 isn't the biggest, but it's up there with the best. You get a good range of inputs, a KVM switch, 165Hz refresh rate and as many pixels as two screens side-by-side. The only problem is where to put it.

Ian Evenden

Ian Evenden has been a journalist for over 20 years, starting in the days of QuarkXpress 4 and Photoshop 5. He now mainly works in Creative Cloud and Google Docs, but can always find a use for a powerful laptop or two. When not sweating over page layout or photo editing, you can find him peering at the stars or growing vegetables.

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