AOC U27G4R 27" vs ASUS ROG Swift OLED PG27UCDM 27"
Side-by-side comparison of viewing distance, PPI, and specifications
ASUS ROG Swift OLED PG27UCDM 27"
26.5" · 3840×2160 · QD-OLED
Optimal Viewing Distance 53cm
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| Specification | AOC U27G4R 27" 2024 | ASUS ROG Swift OLED PG27UCDM 27" 2025 |
|---|---|---|
| Screen Size | 27" (Better) | 26.5" |
| Resolution | 3840×2160 | 3840×2160 |
| Pixel Density (PPI) | 163 | 166 (Better) |
| Optimal Viewing Distance | 54cm | 53cm (Better) |
| Panel Type | IPS | QD-OLED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 16:9 |
| Refresh Rate | 160 Hz | 240 Hz (Better) |
| Variable Refresh Rate (VRR) | G-SYNC Compatible | FreeSync Premium Pro |
| Response Time | 0.5 ms MPRT | 0.0 ms GTG |
| HDR Certification | DisplayHDR 400 | DisplayHDR True Black 400 |
| SDR Brightness | 400 nits (Better) | 250 nits |
| HDR Peak Brightness | 400 nits | 1000 nits (Better) |
| Contrast Ratio | 1:1,000 | 1:1,500,000 (Better) |
| Ports | 2x HDMI · 1x DP · USB Hub | 2x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | — | 90 W |
| Color Gamut | sRGB 124.7% · DCI-P3 95.9% · Adobe RGB 93.4% | sRGB 145% · DCI-P3 99% · Adobe RGB 94% (Better) |
| Year | 2024 | 2025 (Better) |
Summary
The ASUS ROG Swift OLED PG27UCDM 27" has higher pixel density (166 PPI), making it sharper at close range.
The ASUS ROG Swift OLED PG27UCDM 27" allows sitting closer (53cm) while maintaining retina quality.
The AOC U27G4R 27" offers a larger 27" display for more immersive viewing.
Frequently Asked Questions
Which has better PPI: AOC U27G4R 27" or ASUS ROG Swift OLED PG27UCDM 27"?
The ASUS ROG Swift OLED PG27UCDM 27" has 166 PPI compared to 163 PPI for the AOC U27G4R 27".
Which has a closer optimal viewing distance?
The ASUS ROG Swift OLED PG27UCDM 27" requires 53cm vs 54cm for the AOC U27G4R 27" to reach retina quality.
Methodology & Sources
Formula: Retina distance (cm) = 3438 / PPI. Displayed values are rounded for readability.
Sources: Official manufacturer spec sheets and product pages. Specs are normalized before comparisons.
Comparison winners are calculated metric by metric (higher is better for most specs; lower is better for distance/response time).
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