ASUS ROG Swift OLED PG27UCDM 27" vs LG UltraFine evo 32U990A-S
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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LG UltraFine evo 32U990A-S
31.5" · 6144×3456 · IPS
Optimal Viewing Distance 39cm
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| Specification | ASUS ROG Swift OLED PG27UCDM 27" 2025 | LG UltraFine evo 32U990A-S 2025 |
|---|---|---|
| Screen Size | 26.5" | 31.5" (Better) |
| Resolution | 3840×2160 | 6144×3456 (Better) |
| Pixel Density (PPI) | 166 | 224 (Better) |
| Optimal Viewing Distance | 53cm | 39cm (Better) |
| Panel Type | QD-OLED | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 16:9 |
| Refresh Rate | 240 Hz (Better) | 60 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 | 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 | 2x HDMI · 1x DP · USB-C · USB Hub | 1x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 90 W | 96 W (Better) |
| Color Gamut | sRGB 145% · DCI-P3 99% · Adobe RGB 94% (Better) | sRGB 100% · DCI-P3 98% · Adobe RGB 99.5% |
| Year | 2025 | 2025 |
Summary
The LG UltraFine evo 32U990A-S has higher pixel density (224 PPI), making it sharper at close range.
The LG UltraFine evo 32U990A-S allows sitting closer (39cm) while maintaining retina quality.
The LG UltraFine evo 32U990A-S offers a larger 31.5" display for more immersive viewing.
Frequently Asked Questions
Which has better PPI: ASUS ROG Swift OLED PG27UCDM 27" or LG UltraFine evo 32U990A-S?
The LG UltraFine evo 32U990A-S has 224 PPI compared to 166 PPI for the ASUS ROG Swift OLED PG27UCDM 27".
Which has a closer optimal viewing distance?
The LG UltraFine evo 32U990A-S requires 39cm vs 53cm for the ASUS ROG Swift OLED PG27UCDM 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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