24.5 inches · 1920 × 1080 (Full HD) · Up to 420Hz over DisplayPort 1.4 (overclocked); up to 240Hz over HDMI 2.0
AOC 25G4K 24.5-inch 420Hz Gaming Monitor
The AOC 25G4K combines a 24.5 inches Fast IPS panel with 1920 × 1080 (Full HD) resolution and fast refresh support for responsive PC gaming. Its Adaptive Sync technology helps coordinate the display refresh with compatible graphics hardware.
Use the DisplayPort connection and a compatible graphics card to reach the highest advertised refresh mode. Actual results depend on the source device, cable, selected resolution, color format and monitor settings.

Gaming display features
- Fast IPS panel: delivers wide viewing angles and responsive pixel transitions for fast gameplay.
- Refresh rate: Up to 420Hz over DisplayPort 1.4 (overclocked); up to 240Hz over HDMI 2.0.
- Response time: 1ms GtG / 0.3ms MPRT. MPRT and GtG are different measurement methods.
- Adaptive Sync: Adaptive Sync on supported hardware and settings.
- Image features: VESA DisplayHDR 400; sRGB 110%; DCI-P3 92% color coverage (manufacturer-stated).
Connectivity and mounting
- 2 × HDMI 2.0; 1 × DisplayPort 1.4; 3.5mm headphone output.
- VESA mounting: 100 × 100mm.
- Stand adjustment: 130mm height; -30° to +30° swivel; -90° to +90° pivot; -5° to +23° tilt.
- No integrated speakers; use the headphone/audio output or external speakers.
Technical specifications
| Model Name | AOC 25G4K |
|---|---|
| Screen Size | 24.5 inches |
| Panel Type | Fast IPS |
| Aspect Ratio | 16:9 |
| Native Resolution | 1920 × 1080 (Full HD) |
| Refresh Rate | Up to 420Hz over DisplayPort 1.4 (overclocked); up to 240Hz over HDMI 2.0 |
| Response Time | 1ms GtG / 0.3ms MPRT |
| Brightness | 350 cd/m² |
| Contrast Ratio | 1000:1 |
| Color Gamut | sRGB 110%; DCI-P3 92% |
| Sync Technology | Adaptive Sync |
| HDR | VESA DisplayHDR 400 |
| Video / Audio Inputs | 2 × HDMI 2.0; 1 × DisplayPort 1.4; 3.5mm headphone output |
| VESA Mount | 100 × 100mm |
| Stand | 130mm height; -30° to +30° swivel; -90° to +90° pivot; -5° to +23° tilt |
| Weight | 4.22kg with stand |
| EAN-13 | 6973985233494 |
| Warranty | 3 Years — Alfrensia monitor warranty policy |
Frequently asked questions
Will every PC run the monitor at its maximum refresh rate?
No. The graphics card, video output, cable, resolution and display settings must support the selected refresh mode.
Does this monitor have built-in speakers?
No. It provides an audio output for headphones or external audio equipment.
Where can I verify the specifications?
Review the official AOC AOC 25G4K product page for the model-specific specifications and support information.



























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