ASUS ROG Swift OLED PG34WCDM 34" vs Dell UltraSharp U4025QW
Side-by-side comparison of viewing distance, PPI, and specifications
ASUS ROG Swift OLED PG34WCDM 34"
33.94" · 3440×1440 · OLED
Optimal Viewing Distance 80cm
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Category Ranking
Pixel Density (PPI)67in category
ASUS ROG Swift OLED PG34WCDM 34"110 PPI #47
Dell UltraSharp U4025QW140 PPI #30
93 PPI224 PPI
HDR Peak Brightness67in category
ASUS ROG Swift OLED PG34WCDM 34"1300 nits #3
Dell UltraSharp U4025QW600 nits #22
250 nits2000 nits
DCI-P3 Color Gamut63in category
ASUS ROG Swift OLED PG34WCDM 34"99% #2
Dell UltraSharp U4025QW99% #2
79%100%
Refresh Rate
ASUS ROG Swift OLED PG34WCDM 34"240 Hz
Dell UltraSharp U4025QW120 Hz
StandardHighUltra
Summary
- Sharpness: advantage Dell UltraSharp U4025QW — At 65cm, the Dell UltraSharp U4025QW is retina (140 PPI) while the ASUS ROG Swift OLED PG34WCDM 34" is not — you need to sit at least 80cm away for pixel-free viewing.
- Brightness: advantage Dell UltraSharp U4025QW — The Dell UltraSharp U4025QW is 67% brighter in SDR (450 vs 270 nits), a noticeable difference for outdoor readability. HDR peak: 600 vs 1300 nits.
Key Differences
| Specification | ASUS ROG Swift OLED PG34WCDM 34" | Dell UltraSharp U4025QW |
|---|---|---|
| Refresh Rate | 240 Hz | 120 Hz |
| Response Time | 0.0 ms GTG | 5 ms GTG |
| HDR Peak Brightness | 1300 nits | 600 nits |
| Contrast Ratio | 1:1,500,000 | 1:2,000 |
| Color Gamut | sRGB 135% · DCI-P3 99% · Adobe RGB 95% | sRGB 100% · DCI-P3 99% · Adobe RGB 96% |
| Screen Size | 33.94" | 39.7" |
| Resolution | 3440×1440 | 5120×2160 |
| Pixel Density (PPI) | 110 | 140 |
| Optimal Viewing Distance | 80cm | 62cm |
| SDR Brightness | 270 nits | 450 nits |
| USB-C Power Delivery | 90 W | 140 W |
All specifications
| Specification | ASUS ROG Swift OLED PG34WCDM 34" 2024 | Dell UltraSharp U4025QW 2024 |
|---|---|---|
| Screen Size | 33.94" | 39.7" (Better) |
| Resolution | 3440×1440 | 5120×2160 (Better) |
| Pixel Density (PPI) | 110 | 140 (Better) |
| Optimal Viewing Distance | 80cm | 62cm (Better) |
| Panel Type | OLED | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 21:9 | 21:9 |
| Refresh Rate | 240 Hz (Better) | 120 Hz |
| Variable Refresh Rate (VRR) | FreeSync Premium Pro | FreeSync Premium |
| Response Time | 0.0 ms GTG (Better) | 5 ms GTG |
| HDR Certification | DisplayHDR True Black 400 | DisplayHDR 600 |
| SDR Brightness | 270 nits | 450 nits (Better) |
| HDR Peak Brightness | 1300 nits (Better) | 600 nits |
| Contrast Ratio | 1:1,500,000 (Better) | 1:2,000 |
| Ports | 2x HDMI · 1x DP · USB-C · USB Hub | 1x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 90 W | 140 W (Better) |
| Color Gamut | sRGB 135% · DCI-P3 99% · Adobe RGB 95% (Better) | sRGB 100% · DCI-P3 99% · Adobe RGB 96% |
| Year | 2024 | 2024 |
Frequently Asked Questions
Which has better PPI: ASUS ROG Swift OLED PG34WCDM 34" or Dell UltraSharp U4025QW?
The Dell UltraSharp U4025QW has 140 PPI compared to 110 PPI for the ASUS ROG Swift OLED PG34WCDM 34".
Which has a closer optimal viewing distance?
The Dell UltraSharp U4025QW requires 62cm vs 80cm for the ASUS ROG Swift OLED PG34WCDM 34" to reach retina quality.
Related Comparisons
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs ASUS ROG Swift OLED PG34WCDM 34" 2024 · 110 PPI · 33.94" · 240 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 ASUS ROG Swift OLED PG34WCDM 34" 2024 · 110 PPI · 33.94" · 240 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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