Dell S3225QC vs Dell UltraSharp U4025QW
Side-by-side comparison of viewing distance, PPI, and specifications
Category Ranking
Pixel Density (PPI)67in category
Dell S3225QC139 PPI #41
Dell UltraSharp U4025QW140 PPI #30
93 PPI224 PPI
HDR Peak Brightness67in category
Dell S3225QC1000 nits #7
Dell UltraSharp U4025QW600 nits #22
250 nits2000 nits
DCI-P3 Color Gamut63in category
Dell S3225QC99% #2
Dell UltraSharp U4025QW99% #2
79%100%
Refresh Rate
Dell S3225QC120 Hz
Dell UltraSharp U4025QW120 Hz
StandardHighUltra
Summary
- Sharpness: identical — Both screens are retina at 65cm. With nearly identical pixel density (139 vs 140 PPI), there is no visible difference in sharpness.
- Brightness: advantage Dell UltraSharp U4025QW — The Dell UltraSharp U4025QW is 80% brighter in SDR (450 vs 250 nits), a noticeable difference for outdoor readability. HDR peak: 600 vs 1000 nits.
Key Differences
| Specification | Dell S3225QC | Dell UltraSharp U4025QW |
|---|---|---|
| Response Time | 0.0 ms GTG | 5 ms GTG |
| HDR Peak Brightness | 1000 nits | 600 nits |
| Contrast Ratio | 1:1,500,000 | 1:2,000 |
| Year | 2025 | 2024 |
| Screen Size | 31.6" | 39.7" |
| Resolution | 3840×2160 | 5120×2160 |
| Pixel Density (PPI) | 139 | 140 |
| Optimal Viewing Distance | 63cm | 62cm |
| SDR Brightness | 250 nits | 450 nits |
| USB-C Power Delivery | 90 W | 140 W |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 95% | sRGB 100% · DCI-P3 99% · Adobe RGB 96% |
All specifications
| Specification | Dell S3225QC 2025 | Dell UltraSharp U4025QW 2024 |
|---|---|---|
| Screen Size | 31.6" | 39.7" (Better) |
| Resolution | 3840×2160 | 5120×2160 (Better) |
| Pixel Density (PPI) | 139 | 140 (Better) |
| Optimal Viewing Distance | 63cm | 62cm (Better) |
| Panel Type | QD-OLED | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 21:9 |
| Refresh Rate | 120 Hz | 120 Hz |
| Variable Refresh Rate (VRR) | FreeSync Premium | FreeSync Premium |
| Response Time | 0.0 ms GTG (Better) | 5 ms GTG |
| HDR Certification | DisplayHDR True Black 400 | DisplayHDR 600 |
| SDR Brightness | 250 nits | 450 nits (Better) |
| HDR Peak Brightness | 1000 nits (Better) | 600 nits |
| Contrast Ratio | 1:1,500,000 (Better) | 1:2,000 |
| Ports | 1x HDMI · USB-C · USB Hub | 1x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 90 W | 140 W (Better) |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 95% | sRGB 100% · DCI-P3 99% · Adobe RGB 96% (Better) |
| Year | 2025 (Better) | 2024 |
Frequently Asked Questions
Which has better PPI: Dell S3225QC or Dell UltraSharp U4025QW?
The Dell UltraSharp U4025QW has 140 PPI compared to 139 PPI for the Dell S3225QC.
Which has a closer optimal viewing distance?
The Dell UltraSharp U4025QW requires 62cm vs 63cm for the Dell S3225QC to reach retina quality.
Related Comparisons
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs Dell S3225QC 2025 · 139 PPI · 31.6" · 120 Hz
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs Dell UltraSharp U4025QW 2024 · 140 PPI · 39.7" · 120 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs Dell S3225QC 2025 · 139 PPI · 31.6" · 120 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs Dell UltraSharp U4025QW 2024 · 140 PPI · 39.7" · 120 Hz
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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