iiyama G-Master GB2770QSU 27-inch 165Hz QHD vs Samsung Odyssey G9 49-inch Super Ultrawide (2026)

✍️ By the 247Verdict Editorial Team📅 Updated 05 October 2026

Which is better? We compared both on score, owner ratings, pros and cons.

iiyama G-Master GB2770QSU 27-inch 165Hz QHD

8.9/10 Great

4.5★ (3,600 owners)

27" 1440p 165Hz IPS, 1ms, FreeSync, USB hub, 100W USB-C. Underrated 1440p value monitor.

Full Review

Samsung Odyssey G9 49-inch Super Ultrawide

9.2/10 Excellent

4.5★ (6,800 owners)

49" 5120x1440 240Hz, 1000R curve, QLED, G-Sync, dual-QHD. The super ultrawide.

Full Review

At a Glance

	iiyama G-Master GB2770QSU 27-inch 165Hz QHD	Samsung Odyssey G9 49-inch Super Ultrawide
247Verdict Score	8.9/10	9.2/10
Owner Rating	4.5★ (3,600)	4.5★ (6,800)
Verdict	Great	Excellent
Refresh	165Hz	240Hz
Panel	IPS	QLED

Quick Verdict

Both are strong choices, but the Samsung Odyssey G9 49-inch Super Ultrawide edges ahead with a 9.2/10 vs 8.9/10. 49" 5120x1440 240Hz, 1000R curve, QLED, G-Sync, dual-QHD. The super ultrawide. That said, the iiyama G-Master GB2770QSU 27-inch 165Hz QHD is worth considering if 27" 1440p 165Hz IPS, 1ms, FreeSync, USB hub, 100W USB-C. Underrated 1440p value monitor. Check the current price on Amazon →

Pros & Cons Side by Side

iiyama G-Master GB2770QSU 27-inch 165Hz QHD

100W USB-C charges and connects a laptop with one cable — the highest USB-C wattage in budget gaming monitors
USB hub with 2x USB-A passes through from USB-C connection — desk tidy organisation
1440p 165Hz IPS at under £250 — competitive with LG UltraGear at lower pricing
iiyama's 30-year professional monitor heritage — OEM supplier to major display brands
FreeSync Premium for tear-free AMD GPU gaming

iiyama brand less recognised than LG or Samsung in consumer gaming market
Lower peak brightness than premium alternatives for HDR content
Limited HDR400 tier — not genuine HDR performance

Samsung Odyssey G9 49-inch Super Ultrawide

49-inch 32:9 super ultrawide equals two 27-inch QHD monitors side by side with no bezel gap
1000R aggressive curve wraps the display around your field of view for total immersion
240Hz at 5120x1440 delivers smooth high-refresh gaming across the vast canvas
QLED quantum dot colour with 1000 nits peak brightness for vivid HDR
Replaces a dual-monitor setup for productivity with seamless single-screen workflow

£1,000+ and requires a powerful GPU to drive 5120x1440 at 240Hz
Enormous footprint requires a deep, wide desk
Not all games support 32:9 aspect ratio natively

FAQ

Which is better, iiyama G-Master GB2770QSU 27-inch or Samsung Odyssey G9 49-inch?

Is the iiyama G-Master GB2770QSU 27-inch worth the extra cost?

The Samsung Odyssey G9 49-inch Super Ultrawide matches or exceeds it at a potentially lower price point.

Who is the iiyama G-Master GB2770QSU 27-inch best suited to?

27" 1440p 165Hz IPS, 1ms, FreeSync, USB hub, 100W USB-C. Underrated 1440p value monitor.

Who is the Samsung Odyssey G9 49-inch best suited to?

49" 5120x1440 240Hz, 1000R curve, QLED, G-Sync, dual-QHD. The super ultrawide.

What are the main downsides of each?

iiyama G-Master GB2770QSU 27-inch 165Hz QHD: iiyama brand less recognised than LG or Samsung in consumer gaming market; Lower peak brightness than premium alternatives for HDR content. Samsung Odyssey G9 49-inch Super Ultrawide: £1,000+ and requires a powerful GPU to drive 5120x1440 at 240Hz; Enormous footprint requires a deep, wide desk.

Do owner ratings agree with our verdict?

Largely, yes — iiyama G-Master GB2770QSU 27-inch 165Hz QHD sits at 4.5★ from 3,600 verified Amazon owners, and Samsung Odyssey G9 49-inch Super Ultrawide at 4.5★ from 6,800.

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