ASUS ROG Swift PG27AQDP 27" vs Samsung ViewFinity S9 5K
Side-by-side comparison of viewing distance, PPI, and specifications
ASUS ROG Swift PG27AQDP 27"
26.5" · 2560×1440 · OLED
Optimal Viewing Distance 79cm
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| Specification | ASUS ROG Swift PG27AQDP 27" 2024 | Samsung ViewFinity S9 5K 2023 |
|---|---|---|
| Screen Size | 26.5" | 27" (Better) |
| Resolution | 2560×1440 | 5120×2880 (Better) |
| Pixel Density (PPI) | 111 | 218 (Better) |
| Optimal Viewing Distance | 79cm | 40cm (Better) |
| Panel Type | OLED | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 16:9 |
| Refresh Rate | 480 Hz (Better) | 60 Hz |
| Variable Refresh Rate (VRR) | FreeSync Premium | None |
| Response Time | 0.0 ms GTG (Better) | 5 ms GTG |
| HDR Certification | DisplayHDR True Black 400 | None |
| SDR Brightness | 250 nits | 600 nits (Better) |
| HDR Peak Brightness | 1300 nits (Better) | 600 nits |
| Contrast Ratio | 1:1,500,000 (Better) | 1:1,000 |
| Ports | 2x HDMI · 1x DP · USB Hub | 0x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | — | 90 W |
| Color Gamut | sRGB 135% · DCI-P3 99% · Adobe RGB 96% (Better) | sRGB 100% · DCI-P3 99% · Adobe RGB 94% |
| Year | 2024 (Better) | 2023 |
Summary
The Samsung ViewFinity S9 5K has higher pixel density (218 PPI), making it sharper at close range.
The Samsung ViewFinity S9 5K allows sitting closer (40cm) while maintaining retina quality.
The Samsung ViewFinity S9 5K offers a larger 27" display for more immersive viewing.
Frequently Asked Questions
Which has better PPI: ASUS ROG Swift PG27AQDP 27" or Samsung ViewFinity S9 5K?
The Samsung ViewFinity S9 5K has 218 PPI compared to 111 PPI for the ASUS ROG Swift PG27AQDP 27".
Which has a closer optimal viewing distance?
The Samsung ViewFinity S9 5K requires 40cm vs 79cm for the ASUS ROG Swift PG27AQDP 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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