ASUS ROG Swift OLED PG27UCDM 27" vs Dell U2724D 27"
Side-by-side comparison of viewing distance, PPI, and specifications
ASUS ROG Swift OLED PG27UCDM 27"
26.5" · 3840×2160 · QD-OLED
Optimal Viewing Distance 53cm
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Advantages of ASUS ROG Swift OLED PG27UCDM 27"
| Specification | ASUS ROG Swift OLED PG27UCDM 27" | Dell U2724D 27" |
|---|---|---|
| Resolution | 3840×2160 | 2560×1440 |
| Pixel Density (PPI) | 166 | 109 |
| Optimal Viewing Distance | 53cm | 80cm |
| Refresh Rate | 240 Hz | 120 Hz |
| 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 |
| Color Gamut | sRGB 145% · DCI-P3 99% · Adobe RGB 94% | sRGB 100% · DCI-P3 98% · Adobe RGB 87% |
| Year | 2025 | 2023 |
Advantages of Dell U2724D 27"
| Specification | ASUS ROG Swift OLED PG27UCDM 27" | Dell U2724D 27" |
|---|---|---|
| Screen Size | 26.5" | 27" |
| SDR Brightness | 250 nits | 350 nits |
Identical
| Specification | ASUS ROG Swift OLED PG27UCDM 27" | Dell U2724D 27" |
|---|---|---|
| Panel Type | QD-OLED | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 16:9 |
| Variable Refresh Rate (VRR) | FreeSync Premium Pro | None |
| HDR Certification | DisplayHDR True Black 400 | None |
| Ports | 2x HDMI · 1x DP · USB-C · USB Hub | 1x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 90 W | — |
Summary
Sharpness: advantage ASUS ROG Swift OLED PG27UCDM 27"
At 65cm, the ASUS ROG Swift OLED PG27UCDM 27" is retina (166 PPI) while the Dell U2724D 27" is not — you need to sit at least 80cm away for pixel-free viewing.
Brightness: advantage Dell U2724D 27"
The Dell U2724D 27" is 40% brighter in SDR (350 vs 250 nits), a noticeable difference for outdoor readability. HDR peak: 600 vs 1000 nits.
All specifications
| Specification | ASUS ROG Swift OLED PG27UCDM 27" 2025 | Dell U2724D 27" 2023 |
|---|---|---|
| Screen Size | 26.5" | 27" (Better) |
| Resolution | 3840×2160 (Better) | 2560×1440 |
| Pixel Density (PPI) | 166 (Better) | 109 |
| Optimal Viewing Distance | 53cm (Better) | 80cm |
| Panel Type | QD-OLED | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 16:9 |
| Refresh Rate | 240 Hz (Better) | 120 Hz |
| Variable Refresh Rate (VRR) | FreeSync Premium Pro | None |
| Response Time | 0.0 ms GTG (Better) | 5 ms GTG |
| HDR Certification | DisplayHDR True Black 400 | None |
| SDR Brightness | 250 nits | 350 nits (Better) |
| HDR Peak Brightness | 1000 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 | — |
| Color Gamut | sRGB 145% · DCI-P3 99% · Adobe RGB 94% (Better) | sRGB 100% · DCI-P3 98% · Adobe RGB 87% |
| Year | 2025 (Better) | 2023 |
Frequently Asked Questions
Which has better PPI: ASUS ROG Swift OLED PG27UCDM 27" or Dell U2724D 27"?
The ASUS ROG Swift OLED PG27UCDM 27" has 166 PPI compared to 109 PPI for the Dell U2724D 27".
Which has a closer optimal viewing distance?
The ASUS ROG Swift OLED PG27UCDM 27" requires 53cm vs 80cm for the Dell U2724D 27" 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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