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AOC AGON PRO AG276QSG2 vs BenQ MOBIUZ EX321UX: Comparison
AOC AGON PRO AG276QSG2 and BenQ MOBIUZ EX321UX separate most on refresh rate: AOC AGON PRO AG276QSG2 at 360 Hz, BenQ MOBIUZ EX321UX at 144 Hz, 60% in favour of AOC AGON PRO AG276QSG2. Max Refresh Rate splits them by another 60%, again favouring AOC AGON PRO AG276QSG2. They match on 12 other specifications, including panel type, panel technology and aspect ratio.
Specs
| Specification | ![]() | ![]() |
|---|---|---|
| Panel Type | IPS | IPS |
| Brand | AOC | BenQ |
| Model Number | AG276QSG2 | EX321UX |
| Screen Size | 27 in-14% | 31.5 in |
| Resolution | 2560 x 1440 (QHD) | 3840 x 2160 (4K UHD) |
| Panel Technology | IPS | IPS |
| Aspect Ratio | 16:9 | 16:9 |
| Refresh Rate | 360 Hz | 144 Hz-60% |
| Response Time | 1 ms | 1 ms |
| Adaptive Sync | NVIDIA G-Sync with Pulsar | AMD FreeSync Premium Pro |
| HDR Support | Yes | Yes |
| Curved | No | No |
| Panel Coating | Matte anti-glare | Matte anti-glare |
| Native Resolution | 2560x1440 | 3840x2160 |
| Screen Curvature | Flat | Flat |
| Max Refresh Rate | 360 Hz | 144 Hz-60% |
| Response Time GtG | 1 ms | 1 ms |
| HDR Certification | HDR10 signal only | DisplayHDR 1000 |
| SDR Brightness | 450 nits | 700 nits |
| Native Contrast Ratio | 1000:1 | 1000:1 |
| DCI-P3 Coverage | 97.3 % | 99 % |
| Height Adjustment Range | 130 mm | 100 mm |
| VESA Mount Pattern | 100x100 | 100x100 |
| Series | AGON PRO | MOBIUZ |
| Color Gamut | 131.3% sRGB, 97.3% DCI-P3 | 99% DCI-P3, 99% Adobe RGB |
| HDR Formats | HDR10 | HDR10 |
| Ports | DisplayPort 1.4, HDMI 2.1, USB-B upstream, USB-A downstream, headphone out | 3x HDMI 2.1 (1x eARC), DisplayPort 2.1, USB-C (65W PD, DP Alt Mode), 3x USB-A + 1x USB-C downstream |
| Source URL | https://www.aoc.com/us/gaming/monitors/ag276qsg2 | https://www.benq.com/en-us/monitor/gaming/ex321ux/spec.html |
Verdict
AOC AGON PRO AG276QSG2
8.6 / 10 Expert Rating
A premium 1440p esports monitor whose hardware G-Sync Ultimate module and dense Mini-LED backlight justify its price for NVIDIA enthusiasts.
BenQ MOBIUZ EX321UX
8.5 / 10 Expert Rating
A bright, well-rounded 4K Mini-LED gaming monitor whose HDR performance and audio stand out from typical gaming displays.




