Tested by IMartz
AOC Q27G4XF
27-inch 1440p 180 Hz IPS gaming monitor offering very good value. It stands out for good SDR, full ergonomic adjustments and solid gaming performance, although connectivity and HDR are significantly cut back.
PanelIPS
IMartz verdict
Pros
- Very competitive price for a 1440p 180 Hz IPS monitor.
- Good gaming performance with Faster mode, well-functioning G-SYNC Compatible and an MBR Sync option.
- Good ergonomics for its class, with height, tilt, swivel and pivot adjustments.
Things to consider
- Very heavy matte finish, with some visible grain on light backgrounds.
- Very limited connectivity, with just one HDMI, one DisplayPort and an audio output.
- Quite weak HDR, without a real brightness increase and with an inaccurate PQ/EOTF curve.
A good fit if…
- Those seeking a cheap, fast and balanced 1440p monitor for PC gaming.
Consider another option if…
- Aggressive matte finishes or grain on white backgrounds bother you.
- You need several video inputs or want to connect many sources at once.
- You want full PS5 compatibility.
Measurements and specifications
IMartz test results. See each section for the measurement conditions.
Display and format
SDR performance
Color, brillo, contraste y comportamiento básico fuera de HDR.
HDR performance
Brillo pico, volumen de color, EOTF y experiencia HDR real.
Test note · EOTF tracking
The HDR modes brighten shadows and midtones above the reference. DisplayHDR compresses highlights before reaching the panel limit; Movie, Picture and Game change that distribution without resolving the contrast limitation.
Response time and PC gaming
Overdrive, tiempo de respuesta, overshoot, VRR e input lag.
PS5 and consoles
Compatibilidad con VRR, ALLM y resoluciones permitidas.
4K 60 Hz
Connectivity
Entradas de vídeo, USB-C, KVM, hub USB y extras de conexión.
Stand, mounting and extras
Calidad física, ergonomía, VESA y detalles destacables.
Photos and test results
Open an image to view the full-size charts and browse the tests.
Colour gamut and accuracy
Grayscale and gamma
Brightness and contrast
Brightness and uniformity
Luminance and EOTF
Colour gamut and accuracy
Alternatives
Other options, each with its own specifications and test results.

