AOC AG274QG-B Review: 240Hz Gaming Power at a Refurbished Price

Quick Verdict

The AOC AG274QG-B is a tournament-grade 27-inch gaming monitor that earns its "AGON PRO" badge. At 240Hz with G-Sync Ultimate and a 1ms response, it handles competitive shooters like Valorant and Apex Legends with precision that cheaper 144Hz panels simply can't match. The certified-refurbished price point is the real draw here — you get nearly flagship-level performance without the flagship MSRP. My score: 8.6 / 10. Buy it if you want competitive-grade motion handling; skip it if a scratched bezel or missing cable would ruin your day.

What Is the AOC AG274QG-B?

I set the AOC AG274QG-B up on a Saturday morning, replacing a three-year-old 60Hz monitor that had started exhibiting that faint ghosting you stop noticing until suddenly you do. The unboxing was straightforward — the certified-refurbished unit arrived in generic but well-padded packaging. Initial impression: this thing feels solid. The stand has heft. The bezels are genuinely thin, which matters when you're running dual monitors or — like me — mounting it above a secondary display.

The AG274QG-B sits in AOC's AGON PRO 4 series, a tier above their standard gaming lineup. Key specs at a glance: 2560×1440 QHD resolution on an IPS panel, 240Hz refresh rate, 1ms gray-to-gray response, NVIDIA G-Sync Ultimate certification, and VESA DisplayHDR 600. The 98% DCI-P3 color gamut is a spec I tend to take with a grain of salt on product listings, but in practice — after a couple of hours in Cyberpunk 2077 and a few rounds of Overwatch 2 — the color punch is real. HDR content in particular benefits from that DCI-P3 coverage, with richer reds and better shadow detail than any sRGB-limited panel.

Key Features

• 27-inch IPS panel at 2560×1440 QHD resolution — sharp without taxing your GPU as much as 4K
• 240Hz refresh rate and 1ms GTG response — competitive-grade motion clarity
• NVIDIA G-Sync Ultimate — tear-free, stutter-free variable refresh for GeForce owners
• VESA DisplayHDR 600 and 98% DCI-P3 — HDR content and color-accurate work look excellent
• AOC Quickswitch Keypad — wireless button to swap between 6 game modes instantly
• AOC Screen Shield — reduces external glare for better visibility in bright rooms
• AOC LightFX — customizable RGB lighting that syncs with other AGON peripherals
• Full ergonomic stand — height, pivot, swivel, tilt, plus quick-release VESA mount
• Rich connectivity — DisplayPort 1.4, dual HDMI 2.0, four USB 3.2 ports, audio in/out, mic ports

Hands-On Review

Three weeks with this monitor changed how I notice motion in games. I'm not a pro player by any stretch — high Gold in Valorant, usually middle of the pack in Apex — but the jump from 144Hz to 240Hz was immediately noticeable. Flick shots felt cleaner. Tracking a moving target through smoke was less guesswork and more muscle memory. Whether that's psychological or genuinely the extra frames helping me track better, I'll take it. What surprised me was that the difference held even outside shooters: navigating menus in Baldur's Gate 3 and scrolling through spreadsheets felt smoother, too.

What nobody mentions in most listings: the AGON Quickswitch Keypad is genuinely useful. I assigned it to switch between my competitive FPS profile and a slower-paced RPG mode, and the one-button swap saved me digging into OSD menus mid-match. The wireless aspect is neat — it just works after a simple USB pairing. By day three I stopped thinking about it entirely, which is the best compliment you can give a peripheral.

I ran the AG274QG-B with an RTX 3070, and 240Hz in QHD is GPU-intensive. Most of my sessions sat between 170–220fps in optimized competitive titles, which still let G-Sync do its thing across the full range. Forza Horizon 5 at max settings pushed closer to 144fps, which was perfectly fine — but if you're running a mid-range card like a GTX 1660 Super, you'll be capping yourself at 144Hz anyway and missing out on the monitor's headline feature.

Build quality is where certified refurbished makes me slightly cautious. My unit arrived pristine — not a single scratch or dust smudge — but I've seen reports from other buyers where the box came without cables or the stand had minor cosmetic wear. The 90-day return window covers you, but it's worth filming your unboxing just in case.

Who Should Buy It?

Competitive esports players and serious gamers will get the most from 240Hz. If you're grinding ranked in Valorant, CS2, or any fast-twitch title, the motion clarity advantage is real and measurable in reaction-time scenarios.

Streamers and content creators who need accurate color for video editing or graphic work will appreciate the 98% DCI-P3 coverage and the sharp QHD resolution. The IPS panel holds up at off-axis angles, which matters if you're color-grading while a client or teammate looks over your shoulder.

Multi-monitor setup builders will love the thin bezels. When the AOC AG274QG-B sits next to a second monitor, the gap between screens is minimal — much better than chunky-bezeled monitors I've used before.

Skip this if you're a casual user running older hardware. A $400+ gaming monitor attached to a GTX 1060 is money wasted — you'll never push past 60fps in demanding titles, and the extra refresh rate is wasted. Also skip it if you can't tolerate refurbished gear: some buyers receive units with cosmetic blemishes, and if that would bug you every time you look at the screen, pay full price for a new unit instead.

Alternatives Worth Considering

ASUS ROG Swift PG279QM — similar 1440p 240Hz IPS specs but with ASUS's excellent OSD software and a higher street price. Worth the premium if you want ELMB-Sync (NVIDIA-compatible motion blur reduction) and prefer ASUS build aesthetics.

LG 27GP850-B — a strong mid-range alternative with 165Hz native (overclockable to 180Hz), Nano IPS, and FreeSync Premium Pro. Better value if you're on an AMD GPU and don't need G-Sync Ultimate.

Dell Alienware AW2721D — premium pick with 240Hz, G-Sync Ultimate, and a stunning design. Significantly more expensive, but the build quality and warranty support are in a different league for professionals who need reliable long-term performance.

FAQ

Final Verdict

The AOC AG274QG-B is a seriously capable tournament monitor at a price that makes the certified-refurbished risk worthwhile. The 240Hz IPS panel delivers the motion clarity competitive gamers demand, G-Sync Ultimate keeps everything smooth on NVIDIA hardware, and the color accuracy handles both HDR gaming and content creation without flinching. It's not perfect — no USB-C, a GPU-intensive refresh rate, and the refurbished gamble — but for the right buyer running a capable rig, this monitor earns a place on the desk. I'd buy it again.