Kuycon P40K vs Samsung ViewFinity S9 5K
Side-by-side comparison of viewing distance, PPI, and specifications
| Specification | Kuycon P40K 2025 | Samsung ViewFinity S9 5K 2023 |
|---|---|---|
| Screen Size | 40" (Better) | 27" |
| Resolution | 5120×2160 | 5120×2880 (Better) |
| Pixel Density (PPI) | 139 | 218 (Better) |
| Optimal Viewing Distance | 63cm | 40cm (Better) |
| Panel Type | IPS | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 21:9 | 16:9 |
| Refresh Rate | 120 Hz (Better) | 60 Hz |
| Variable Refresh Rate (VRR) | G-SYNC Compatible | None |
| Response Time | 8 ms GTG | 5 ms GTG (Better) |
| HDR Certification | None | None |
| SDR Brightness | 400 nits | 600 nits (Better) |
| HDR Peak Brightness | 450 nits | 600 nits (Better) |
| Contrast Ratio | 1:2,000 (Better) | 1:1,000 |
| Ports | 2x HDMI · 1x DP · USB-C · USB Hub | 0x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 100 W (Better) | 90 W |
| Color Gamut | sRGB 99% · DCI-P3 96% | sRGB 100% · DCI-P3 99% · Adobe RGB 94% (Better) |
| Year | 2025 (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 Kuycon P40K offers a larger 40" display for more immersive viewing.
Frequently Asked Questions
Which has better PPI: Kuycon P40K or Samsung ViewFinity S9 5K?
The Samsung ViewFinity S9 5K has 218 PPI compared to 139 PPI for the Kuycon P40K.
Which has a closer optimal viewing distance?
The Samsung ViewFinity S9 5K requires 40cm vs 63cm for the Kuycon P40K 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).
Last updated:
Related Comparisons
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs Kuycon P40K 2025 · 139 PPI · 40" · 120 Hz
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs Samsung ViewFinity S9 5K 2023 · 218 PPI · 27" · 60 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs Kuycon P40K 2025 · 139 PPI · 40" · 120 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs Samsung ViewFinity S9 5K 2023 · 218 PPI · 27" · 60 Hz