iiyama G-Master GB2770QSU 27-inch 165Hz QHD vs ViewSonic XG2431 24-inch 240Hz Esports Monitor (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

ViewSonic XG2431 24-inch 240Hz Esports Monitor

8.9/10 Great

4.5★ (3,400 owners)

24" 1080p 240Hz IPS, 0.5ms MPRT, G-Sync Compatible, BackLightBoost. Budget 240Hz esports.

Full Review

At a Glance

	iiyama G-Master GB2770QSU 27-inch 165Hz QHD	ViewSonic XG2431 24-inch 240Hz Esports Monitor
247Verdict Score	8.9/10	8.9/10
Owner Rating	4.5★ (3,600)	4.5★ (3,400)
Verdict	Great	Great
Refresh	165Hz	240Hz
Price	Under £250	Under £200

Quick Verdict

This is a genuine draw — both score within 0.15 points of each other. iiyama G-Master GB2770QSU 27-inch 165Hz QHD: 27" 1440p 165Hz IPS, 1ms, FreeSync, USB hub, 100W USB-C. Underrated 1440p value monitor. ViewSonic XG2431 24-inch 240Hz Esports Monitor: 24" 1080p 240Hz IPS, 0.5ms MPRT, G-Sync Compatible, BackLightBoost. Budget 240Hz esports. Choose based on your specific needs. 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

ViewSonic XG2431 24-inch 240Hz Esports Monitor

240Hz at 1080p 24-inch — the esports sweet spot at under £200
BackLightBoost reduces motion blur at high framerates for sharper fast-moving targets
G-Sync Compatible with FreeSync Premium for tear-free gaming on both GPU brands
IPS panel maintains colour accuracy alongside competitive speed
Under £200 for 240Hz — most accessible 240Hz gaming monitor reviewed

1080p in 2026 — 1440p at this refresh rate is more future-proof
24-inch 1080p shows pixels at closer viewing distances vs 1440p alternatives
HDR400 is the minimum tier — not genuine HDR performance

FAQ

Which is better, iiyama G-Master GB2770QSU 27-inch or ViewSonic XG2431 24-inch 240Hz?

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

The ViewSonic XG2431 24-inch 240Hz Esports Monitor 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 ViewSonic XG2431 24-inch 240Hz best suited to?

24" 1080p 240Hz IPS, 0.5ms MPRT, G-Sync Compatible, BackLightBoost. Budget 240Hz esports.

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. ViewSonic XG2431 24-inch 240Hz Esports Monitor: 1080p in 2026 — 1440p at this refresh rate is more future-proof; 24-inch 1080p shows pixels at closer viewing distances vs 1440p alternatives.

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 ViewSonic XG2431 24-inch 240Hz Esports Monitor at 4.5★ from 3,400.

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