iiyama G-Master GB2770QSU 27-inch 165Hz QHD vs LG UltraGear 27GP850-B 27-inch 1440p 180Hz (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

LG UltraGear 27GP850-B 27-inch 1440p 180Hz

9.2/10 Excellent

4.7★ (8,400 owners)

27" 1440p Nano IPS 180Hz, 1ms, G-Sync + FreeSync, 98% DCI-P3, HDR. The 1440p sweet spot.

Full Review

At a Glance

	iiyama G-Master GB2770QSU 27-inch 165Hz QHD	LG UltraGear 27GP850-B 27-inch 1440p 180Hz
247Verdict Score	8.9/10	9.2/10
Owner Rating	4.5★ (3,600)	4.7★ (8,400)
Verdict	Great	Excellent
Refresh	165Hz	180Hz
Panel	IPS	Nano IPS

Quick Verdict

Both are strong choices, but the LG UltraGear 27GP850-B 27-inch 1440p 180Hz edges ahead with a 9.2/10 vs 8.9/10. 27" 1440p Nano IPS 180Hz, 1ms, G-Sync + FreeSync, 98% DCI-P3, HDR. The 1440p sweet spot. 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

LG UltraGear 27GP850-B 27-inch 1440p 180Hz

Nano IPS achieves 98% DCI-P3 colour alongside 180Hz speed — colour and performance together
180Hz overclock provides extra smoothness over standard 165Hz panels
Both G-Sync Compatible and FreeSync Premium for any GPU brand
1ms GtG response with no significant ghosting
8,400 reviews at 4.7★ — the community's favourite 1440p gaming monitor

IPS contrast lower than VA or OLED for dark-scene atmosphere
HDR is HDR400 tier — not genuine HDR brightness
27-inch 1440p is the sweet spot but not the largest or sharpest option

FAQ

Which is better, iiyama G-Master GB2770QSU 27-inch or LG UltraGear 27GP850-B 27-inch?

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

The LG UltraGear 27GP850-B 27-inch 1440p 180Hz 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 LG UltraGear 27GP850-B 27-inch best suited to?

27" 1440p Nano IPS 180Hz, 1ms, G-Sync + FreeSync, 98% DCI-P3, HDR. The 1440p sweet spot.

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. LG UltraGear 27GP850-B 27-inch 1440p 180Hz: IPS contrast lower than VA or OLED for dark-scene atmosphere; HDR is HDR400 tier — not genuine HDR brightness.

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 LG UltraGear 27GP850-B 27-inch 1440p 180Hz at 4.7★ from 8,400.

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