ASUS ROG Strix XG309CM vs Kuycon P40K
Side-by-side comparison of viewing distance, PPI, and specifications
| Specification | ASUS ROG Strix XG309CM 2022 | Kuycon P40K 2025 |
|---|---|---|
| Screen Size | 29.5" | 40" (Better) |
| Resolution | 2560×1080 | 5120×2160 (Better) |
| Pixel Density (PPI) | 94 | 139 (Better) |
| Optimal Viewing Distance | 93cm | 63cm (Better) |
| Panel Type | IPS | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 21:9 | 21:9 |
| Refresh Rate | 220 Hz (Better) | 120 Hz |
| Variable Refresh Rate (VRR) | FreeSync Premium | G-SYNC Compatible |
| Response Time | 1 ms GTG (Better) | 8 ms GTG |
| HDR Certification | None | None |
| SDR Brightness | 300 nits | 400 nits (Better) |
| HDR Peak Brightness | 300 nits | 450 nits (Better) |
| Contrast Ratio | 1:1,000 | 1:2,000 (Better) |
| Ports | 1x HDMI · 1x DP · USB-C · USB Hub | 2x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 15 W | 100 W (Better) |
| Color Gamut | sRGB 110% (Better) | sRGB 99% · DCI-P3 96% |
| Year | 2022 | 2025 (Better) |
Summary
The Kuycon P40K has higher pixel density (139 PPI), making it sharper at close range.
The Kuycon P40K allows sitting closer (63cm) while maintaining retina quality.
The Kuycon P40K offers a larger 40" display for more immersive viewing.
Frequently Asked Questions
Which has better PPI: ASUS ROG Strix XG309CM or Kuycon P40K?
The Kuycon P40K has 139 PPI compared to 94 PPI for the ASUS ROG Strix XG309CM.
Which has a closer optimal viewing distance?
The Kuycon P40K requires 63cm vs 93cm for the ASUS ROG Strix XG309CM 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:
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