Dell UltraSharp U2725QE vs Kuycon P40K
Side-by-side comparison of viewing distance, PPI, and specifications
Advantages of Dell UltraSharp U2725QE
| Specification | Dell UltraSharp U2725QE | Kuycon P40K |
|---|---|---|
| Pixel Density (PPI) | 163 | 139 |
| Optimal Viewing Distance | 54cm | 63cm |
| Response Time | 5 ms GTG | 8 ms GTG |
| SDR Brightness | 600 nits | 400 nits |
| HDR Peak Brightness | 600 nits | 450 nits |
| Contrast Ratio | 1:3,000 | 1:2,000 |
| USB-C Power Delivery | 140 W | 100 W |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 94% | sRGB 99% · DCI-P3 96% |
Advantages of Kuycon P40K
| Specification | Dell UltraSharp U2725QE | Kuycon P40K |
|---|---|---|
| Screen Size | 27" | 40" |
| Resolution | 3840×2160 | 5120×2160 |
Identical
| Specification | Dell UltraSharp U2725QE | Kuycon P40K |
|---|---|---|
| Panel Type | IPS | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 21:9 |
| Refresh Rate | 120 Hz | 120 Hz |
| Variable Refresh Rate (VRR) | None | G-SYNC Compatible |
| HDR Certification | DisplayHDR 600 | None |
| Ports | 1x HDMI · 1x DP · USB-C · USB Hub | 2x HDMI · 1x DP · USB-C · USB Hub |
| Year | 2025 | 2025 |
Summary
Sharpness: no visible difference
Both screens exceed the retina threshold at 65cm. The Dell UltraSharp U2725QE has 17% higher pixel density (163 vs 139 PPI), but this only becomes visible below 54cm.
Brightness: advantage Dell UltraSharp U2725QE
The Dell UltraSharp U2725QE is 50% brighter in SDR (600 vs 400 nits), a noticeable difference for outdoor readability. HDR peak: 600 vs 450 nits.
All specifications
| Specification | Dell UltraSharp U2725QE 2025 | Kuycon P40K 2025 |
|---|---|---|
| Screen Size | 27" | 40" (Better) |
| Resolution | 3840×2160 | 5120×2160 (Better) |
| Pixel Density (PPI) | 163 (Better) | 139 |
| Optimal Viewing Distance | 54cm (Better) | 63cm |
| Panel Type | IPS | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 21:9 |
| Refresh Rate | 120 Hz | 120 Hz |
| Variable Refresh Rate (VRR) | None | G-SYNC Compatible |
| Response Time | 5 ms GTG (Better) | 8 ms GTG |
| HDR Certification | DisplayHDR 600 | None |
| SDR Brightness | 600 nits (Better) | 400 nits |
| HDR Peak Brightness | 600 nits (Better) | 450 nits |
| Contrast Ratio | 1:3,000 (Better) | 1:2,000 |
| Ports | 1x HDMI · 1x DP · USB-C · USB Hub | 2x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 140 W (Better) | 100 W |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 94% (Better) | sRGB 99% · DCI-P3 96% |
| Year | 2025 | 2025 |
Frequently Asked Questions
Which has better PPI: Dell UltraSharp U2725QE or Kuycon P40K?
The Dell UltraSharp U2725QE has 163 PPI compared to 139 PPI for the Kuycon P40K.
Which has a closer optimal viewing distance?
The Dell UltraSharp U2725QE requires 54cm 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:
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