
AOC Q27G4ZMN
Score: 92/100
AOC Q27G40XMN
Score: 87/100Rankings

The AOC Q27G4ZMN is a 27-inch Mini-LED VA gaming monitor delivering QHD resolution, 240 Hz refresh, and DisplayHDR 1000 performance. It excels in brightness, contrast and color accuracy while offering a fully adjustable ergonomic stand.

The AOC Q27G40XMN is a 27-inch Mini-LED VA gaming monitor offering exceptional HDR brightness, a 180 Hz refresh rate, and low input lag. It excels in visual performance but is limited by a basic tilt-only stand and lack of built-in speakers or USB hubs.
| Attribute | ![]() | ![]() |
|---|---|---|
27 inchesbest | 27 inchesbest | |
— | 3,686,400 pixelsbest | |
240 Hzbest | 180 Hz | |
450 nits | 1,357 nitsbest | |
5,000best | 5,000best | |
106 %best | 100 % | |
| ↓ lower better | 1 msbest | 1 msbest |
| ↓ lower better | — | 0.233 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Display(4) | ||
Resolution (total pixels) (pixels) | 2560x1440 pixels | 3686400 pixels |
Refresh Rate (Hz) | 240 Hz | 180 Hz |
Brightness (nits) | 450 nits | 1357 nits |
Color Gamut Coverage (%) | 106 % | 100 % |
Power & Energy(1) | ||
Typical Power Consumption (W) | 31.9 W | 27.5 W |
Warranty(1) | ||
Warranty Period (years) | 3 years | 0.25 years |
Connectivity(1) | ||
HDMI Ports (count) | 2 count | 1 count |
Ergonomics(1) | ||
Tilt Range (degrees) | -5 to 23 degrees | 28 degrees |


Products in the top-left offer the best value (high score, low price).

Professional reviewers rate the Q27G4ZMN 4.5/5, highlighting its OLED-like brightness and contrast, precise factory calibration, and blistering 240 Hz performance as a rare combination at its price point.
Everyday users echo the professional praise, especially appreciating the monitor's brightness, color vibrancy, and fluid gameplay.

Professional reviewers praise the Q27G40XMN for delivering one of the brightest and most contrasty LCDs with superb overdrive and low input lag, while noting the ergonomic stand and lack of USB/audio features as drawbacks.
Everyday users commend the monitor's cinematic HDR impact, smooth 180 Hz gameplay and solid build, but mention the cheap tilt-only stand, absence of speakers/USB, occasional VRR flicker and color dithering at high refresh rates.
“great value”

“best budget HDR monitor”

“Great clarity and sharpness for 27-inch 1440p”
