AOC

AOC AGON PRO AG276QSG2

Expert rating8.6 / 10

Panel:: 27" Mini-LED IPS
Resolution:: 2560x1440
Refresh Rate:: 300Hz

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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

Manufacturer: AOC Last updated: 2026-10-10

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AOC AGON PRO AG276QSG2 Review

AOC AGON PRO AG276QSG2 27-inch QHD Mini-LED IPS gaming monitor with 300Hz refresh, a hardware NVIDIA G-Sync Ultimate module and a 1152-zone backlight.

AOC pairs an unusually dense 1152-zone Mini-LED backlight with a genuine hardware NVIDIA G-Sync Ultimate module here, rather than the more common software-based G-Sync Compatible certification most competitors rely on, a distinction that matters to enthusiasts who want NVIDIA's full variable overdrive and certified HDR pipeline rather than an approximation of it. Combined with 300Hz refresh, it's built for buyers who specifically want NVIDIA's top-tier gaming display certification without moving to OLED.

A True Hardware G-Sync Module Is Increasingly Rare

Most modern 'G-Sync' monitors use NVIDIA's cheaper compatibility certification; a genuine hardware G-Sync Ultimate module with this many local dimming zones is now a genuinely uncommon, premium feature.

Comparison to Alternatives

Compared to the BenQ MOBIUZ EX321UX, the AOC targets QHD and 300Hz esports speed with a hardware G-Sync module versus BenQ's larger 4K Mini-LED panel tuned for HDR movies and lower refresh. Against the MSI MPG 271QRX, the AOC's Mini-LED IPS panel trades OLED-level per-pixel contrast for higher sustained brightness and zero burn-in risk.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8.6 / 10

A premium 1440p esports monitor whose hardware G-Sync Ultimate module and dense Mini-LED backlight justify its price for NVIDIA enthusiasts.

Best for

NVIDIA GPU owners wanting genuine hardware G-Sync Ultimate
Esports players wanting Mini-LED brightness without OLED burn-in risk
Enthusiasts building a no-compromise 1440p rig

Not for

AMD GPU users who can't benefit from the G-Sync module
Budget-conscious buyers
4K desktop users

Specifications

What these specs mean

Identity

Brand	AOC
Model Number	AG276QSG2
Series	AGON PRO
Color Gamut	131.3% sRGB, 97.3% DCI-P3

Panel

Panel Type	IPS
Screen Size	27 in
Resolution	2560 x 1440 (QHD)
Aspect Ratio	16:9

Performance

Refresh Rate	360 Hz
Response Time	1 ms
Adaptive Sync	NVIDIA G-Sync with Pulsar

Features

HDR Support	Yes
Curved	No

Panel technology

Panel Technology	IPS
Panel Coating	Matte anti-glare

Screen geometry

Native Resolution	2560x1440
Screen Curvature	Flat

Motion

Max Refresh Rate	360 Hz
Response Time GtG	1 ms
Backlight Strobing	Yes

HDR and brightness

HDR Certification	HDR10 signal only
SDR Brightness	450 nits
Native Contrast Ratio	1000:1

Color

DCI-P3 Coverage	97.3 %
Color Depth	8-bit

Connectivity

DisplayPort Version	1.4

Stand, mounting and form

Height Adjustment Range	130 mm
Pivot To Portrait	Yes
VESA Mount Pattern	100x100
Built-in Speakers	Yes

Government data

Australian Energy Rating data

Active standby power	0.279 W	Australian Energy Rating label · Registration ACM4267: AOC AG276QSG2, LCD, 68.378 cm screen · Source
Labelled energy consumption	127 kWh/yr	Australian Energy Rating label · Registration ACM4267: AOC AG276QSG2, LCD, 68.378 cm screen · Source

Values declared by the registrant under the Australian/New Zealand GEMS energy rating test method. Compare only with other Energy Rating values, not with ENERGY STAR figures.

Retrieved 23 Sept 2026

Energy Rating data, Commonwealth of Australia (Department of Climate Change, Energy, the Environment and Water), via data.gov.au, licensed CC BY 3.0 AU (creativecommons.org/licenses/by/3.0/au/).

FAQs

What are the key specifications of the AOC AGON PRO AG276QSG2 (27-Inch QHD Mini-LED IPS/300Hz/1ms/98% DCI-P3/G-Sync Ultimate/1152-Zone Backlight)?

Key specs for the AOC AGON PRO AG276QSG2: Resolution 2560 x 1440 (QHD), Refresh Rate 360 Hz, Panel Type IPS, Response Time 1 ms.

Will the AOC AGON PRO AG276QSG2 (27-Inch QHD Mini-LED IPS/300Hz/1ms/98% DCI-P3/G-Sync Ultimate/1152-Zone Backlight) work with my current setup?

The AOC AGON PRO AG276QSG2 (27-Inch QHD Mini-LED IPS/300Hz/1ms/98% DCI-P3/G-Sync Ultimate/1152-Zone Backlight) lists Panel Type is IPS. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the AOC AGON PRO AG276QSG2 (27-Inch QHD Mini-LED IPS/300Hz/1ms/98% DCI-P3/G-Sync Ultimate/1152-Zone Backlight) best suited to?

Best suited to: NVIDIA GPU owners wanting genuine hardware G-Sync Ultimate; Esports players wanting Mini-LED brightness without OLED burn-in risk; Enthusiasts building a no-compromise 1440p rig.

What are the drawbacks of the AOC AGON PRO AG276QSG2 (27-Inch QHD Mini-LED IPS/300Hz/1ms/98% DCI-P3/G-Sync Ultimate/1152-Zone Backlight)?

Not the best fit for: AMD GPU users who can't benefit from the G-Sync module; Budget-conscious buyers; 4K desktop users.