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AOC 27G4X vs Dell S2721DGF: Comparison
AOC 27G4X vs Dell S2721DGF: the refresh rate difference
Start with refresh rate, because it is the widest measured gap between them: AOC 27G4X 180 Hz against Dell S2721DGF 165 Hz, 8% in favour of AOC 27G4X. They differ on adaptive sync too, Adaptive-Sync, NVIDIA G-Sync Compatible on the AOC 27G4X versus AMD FreeSync Premium Pro, G-Sync Compatible on the Dell S2721DGF. Dci-p3 coverage is not the same on both, 95.5 % on the AOC 27G4X versus 98 % on the Dell S2721DGF. Color gamut is not the same on both, 128.3% sRGB, 95.5% DCI-P3 on the AOC 27G4X versus 98% DCI-P3 on the Dell S2721DGF.
Which should you buy, AOC 27G4X or Dell S2721DGF?
Buy the AOC 27G4X for extreme budget-conscious gamers and first-time QHD high-refresh upgraders, though it is not the pick for buyers wanting real HDR contrast and anyone wanting a fully adjustable stand. The Dell S2721DGF suits buyers who want accurate colors without extra calibration and gamers who value warranty support, though it is not built for buyers wanting aggressive gaming aesthetics and anyone chasing real HDR contrast. Our rating of the AOC 27G4X (7.6/10): an aggressively priced high-refresh QHD monitor that delivers solid core gaming performance without extra frills. Our rating of the Dell S2721DGF (8.5/10): A quietly excellent all-rounder gaming monitor backed by an industry-leading warranty.
What AOC 27G4X and Dell S2721DGF have in common
Where they agree, they agree completely, panel type, screen size, hdr support, panel technology and aspect ratio included, so the decision does not turn on any of those. They match on 4 further specifications as well.
Frequently asked questions
Do the AOC 27G4X and Dell S2721DGF differ on resolution?
Yes. Resolution reads 1920 x 1080 on the AOC 27G4X versus 2560 x 1440 on the Dell S2721DGF.
Is the Screen Curvature the same on the AOC 27G4X and Dell S2721DGF?
It is. Both are listed at Flat, so it is not a reason to pick one over the other.
Specs and benchmarks
Panel Type
- AOC 27G4X
- IPS
- Dell S2721DGF
- IPS
Brand
- AOC 27G4X
- AOC
- Dell S2721DGF
- Dell
Model Number
- AOC 27G4X
- 27G4X
- Dell S2721DGF
- S2721DGF
Screen Size
- AOC 27G4X
- 27 in
- Dell S2721DGF
- 27 in
Resolution
- AOC 27G4X
- 1920 x 1080 (Full HD)
- Dell S2721DGF
- 2560 x 1440 (QHD)
Panel Technology
- AOC 27G4X
- IPS
- Dell S2721DGF
- IPS
Aspect Ratio
- AOC 27G4X
- 16:9
- Dell S2721DGF
- 16:9
Refresh Rate
- AOC 27G4X
- 180 HzBest
- Dell S2721DGF
- 165 Hz-8%
Response Time
- AOC 27G4X
- 1 ms
- Dell S2721DGF
- 1ms (GTG)
Adaptive Sync
- AOC 27G4X
- Adaptive-Sync, NVIDIA G-Sync Compatible
- Dell S2721DGF
- AMD FreeSync Premium Pro, G-Sync Compatible
HDR Support
- AOC 27G4X
- Yes
- Dell S2721DGF
- Yes
Native Resolution
- AOC 27G4X
- 1920x1080
- Dell S2721DGF
- 2560x1440
Screen Curvature
- AOC 27G4X
- Flat
- Dell S2721DGF
- Flat
HDR Certification
- AOC 27G4X
- HDR10 signal only
- Dell S2721DGF
- DisplayHDR 400
DCI-P3 Coverage
- AOC 27G4X
- 95.5 %
- Dell S2721DGF
- 98 %
DisplayPort Version
- AOC 27G4X
- 1.4
- Dell S2721DGF
- 1.4
HDMI Version
- AOC 27G4X
- 2.0
- Dell S2721DGF
- 2.0
VESA Mount Pattern
- AOC 27G4X
- 100x100
- Dell S2721DGF
- 100x100
Series
- AOC 27G4X
- AOC Gaming 27G4X
- Dell S2721DGF
- Dell Gaming S2721DGF
Color Gamut
- AOC 27G4X
- 128.3% sRGB, 95.5% DCI-P3
- Dell S2721DGF
- 98% DCI-P3
HDR Formats
- AOC 27G4X
- HDR10
- Dell S2721DGF
- VESA DisplayHDR 400
Which one should you pick?
Choose AOC 27G4X if you want the higher screen size (27 in vs 27 in) and the higher refresh rate (180 Hz vs 165 Hz).
Choose Dell S2721DGF if you already have it on hand or find it at a lower price.
Verdict
AOC 27G4X
7.6 / 10 Expert Rating
An aggressively priced high-refresh QHD monitor that delivers solid core gaming performance without extra frills.
Dell S2721DGF
8.5 / 10 Expert Rating
A quietly excellent all-rounder gaming monitor backed by an industry-leading warranty.




