AOC AGON AG275QXN 27-inch 1440p 165Hz VA vs Dell Alienware AW3423DWF 34-inch QD-OLED (2026)

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

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

AOC AGON AG275QXN 27-inch 1440p 165Hz VA

9.0/10 Excellent

4.5★ (3,600 owners)

27" 1440p 165Hz VA, 1ms MPRT, Shadow Control, G-Sync Compatible. Best VA contrast at 1440p.

Full Review

Dell Alienware AW3423DWF 34-inch QD-OLED

9.4/10 Excellent

4.6★ (4,200 owners)

34" 21:9 QD-OLED 165Hz, 0.1ms, 99.3% DCI-P3, 1800R. Ultrawide QD-OLED gaming.

Full Review

At a Glance

	AOC AGON AG275QXN 27-inch 1440p 165Hz VA	Dell Alienware AW3423DWF 34-inch QD-OLED
247Verdict Score	9.0/10	9.4/10
Owner Rating	4.5★ (3,600)	4.6★ (4,200)
Verdict	Excellent	Excellent
Panel	VA 3000:1 contrast	QD-OLED
Refresh	165Hz	165Hz

Quick Verdict

Both are strong choices, but the Dell Alienware AW3423DWF 34-inch QD-OLED edges ahead with a 9.4/10 vs 9.0/10. 34" 21:9 QD-OLED 165Hz, 0.1ms, 99.3% DCI-P3, 1800R. Ultrawide QD-OLED gaming. That said, the AOC AGON AG275QXN 27-inch 1440p 165Hz VA is worth considering if 27" 1440p 165Hz VA, 1ms MPRT, Shadow Control, G-Sync Compatible. Best VA contrast at 1440p. Check the current price on Amazon →

Pros & Cons Side by Side

AOC AGON AG275QXN 27-inch 1440p 165Hz VA

VA panel 3000:1 contrast delivers deeper blacks than any IPS at this price — atmospheric games shine
165Hz at 1440p balances visual quality and performance for mid-range GPUs
Shadow Control brightens dark corners without blowing out highlights — useful in FPS games
G-Sync Compatible and FreeSync Premium Pro for both GPU brands
Under £250 — best-value 1440p 165Hz VA monitor available

VA response time smearing visible in very fast motion at sub-60fps
Less colour accuracy than IPS at 85% DCI-P3 vs IPS 95-99%
Backlight bleed from VA construction visible on full black screens

Dell Alienware AW3423DWF 34-inch QD-OLED

QD-OLED panel delivers OLED blacks and Quantum Dot colour accuracy in ultrawide format
34-inch 21:9 ultrawide at QD-OLED quality — the best ultrawide gaming display available
0.1ms response time combines ultrawide immersion with OLED responsiveness
1800R curvature wraps the ultrawide display naturally around field of view
99.3% DCI-P3 serves professional creative work alongside gaming immersion

£750+ — QD-OLED ultrawide premium pricing
21:9 aspect ratio has game compatibility limitations for older titles
QD-OLED burn-in risk with static HUD elements over extended gaming periods

FAQ

Which is better, AOC AGON AG275QXN 27-inch 1440p or Dell Alienware AW3423DWF 34-inch?

Is the AOC AGON AG275QXN 27-inch 1440p worth the extra cost?

The Dell Alienware AW3423DWF 34-inch QD-OLED matches or exceeds it at a potentially lower price point.

Who is the AOC AGON AG275QXN 27-inch 1440p best suited to?

27" 1440p 165Hz VA, 1ms MPRT, Shadow Control, G-Sync Compatible. Best VA contrast at 1440p.

Who is the Dell Alienware AW3423DWF 34-inch best suited to?

34" 21:9 QD-OLED 165Hz, 0.1ms, 99.3% DCI-P3, 1800R. Ultrawide QD-OLED gaming.

What are the main downsides of each?

AOC AGON AG275QXN 27-inch 1440p 165Hz VA: VA response time smearing visible in very fast motion at sub-60fps; Less colour accuracy than IPS at 85% DCI-P3 vs IPS 95-99%. Dell Alienware AW3423DWF 34-inch QD-OLED: £750+ — QD-OLED ultrawide premium pricing; 21:9 aspect ratio has game compatibility limitations for older titles.

Do owner ratings agree with our verdict?

Largely, yes — AOC AGON AG275QXN 27-inch 1440p 165Hz VA sits at 4.5★ from 3,600 verified Amazon owners, and Dell Alienware AW3423DWF 34-inch QD-OLED at 4.6★ from 4,200.

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