ASUS ROG Swift PG32UCDM3 vs LG UltraGear 32GX870A
Side-by-side comparison of viewing distance, PPI, and specifications
ASUS ROG Swift PG32UCDM3
31.5" · 3840×2160 · QD-OLED
Optimal Viewing Distance 62cm
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Category Ranking
Pixel Density (PPI)67in category
ASUS ROG Swift PG32UCDM3140 PPI #30
LG UltraGear 32GX870A140 PPI #30
93 PPI224 PPI
HDR Peak Brightness67in category
ASUS ROG Swift PG32UCDM31000 nits #7
LG UltraGear 32GX870A1300 nits #3
250 nits2000 nits
DCI-P3 Color Gamut63in category
ASUS ROG Swift PG32UCDM399% #2
LG UltraGear 32GX870A98.5% #30
79%100%
Refresh Rate
ASUS ROG Swift PG32UCDM3240 Hz
LG UltraGear 32GX870A240 Hz
StandardHighUltra
Summary
- Sharpness: identical — Both screens are retina at 65cm with identical pixel density (140 PPI). No difference in sharpness.
- Brightness: advantage LG UltraGear 32GX870A — Similar SDR brightness (300 vs 275 nits), but the LG UltraGear 32GX870A leads in HDR peak (1300 vs 1000 nits).
Key Differences
| Specification | ASUS ROG Swift PG32UCDM3 | LG UltraGear 32GX870A |
|---|---|---|
| SDR Brightness | 300 nits | 275 nits |
| Color Gamut | sRGB 100% · DCI-P3 99% | sRGB 100% · DCI-P3 98.5% |
| HDR Peak Brightness | 1000 nits | 1300 nits |
All specifications
| Specification | ASUS ROG Swift PG32UCDM3 2025 | LG UltraGear 32GX870A 2025 |
|---|---|---|
| Screen Size | 31.5" | 31.5" |
| Resolution | 3840×2160 | 3840×2160 |
| Pixel Density (PPI) | 140 | 140 |
| Optimal Viewing Distance | 62cm | 62cm |
| Panel Type | QD-OLED | OLED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 16:9 |
| Refresh Rate | 240 Hz | 240 Hz |
| Variable Refresh Rate (VRR) | FreeSync Premium Pro | FreeSync Premium Pro |
| Response Time | 0.0 ms GTG | 0.0 ms GTG |
| HDR Certification | DisplayHDR True Black 500 | DisplayHDR True Black 400 |
| SDR Brightness | 300 nits (Better) | 275 nits |
| HDR Peak Brightness | 1000 nits | 1300 nits (Better) |
| Contrast Ratio | 1:1,500,000 | 1:1,500,000 |
| Ports | 2x HDMI · 1x DP · USB-C · USB Hub | 2x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 90 W | 90 W |
| Color Gamut | sRGB 100% · DCI-P3 99% (Better) | sRGB 100% · DCI-P3 98.5% |
| Year | 2025 | 2025 |
Frequently Asked Questions
Which has better PPI: ASUS ROG Swift PG32UCDM3 or LG UltraGear 32GX870A?
Both have 140 PPI.
Which has a closer optimal viewing distance?
Both require 62cm for retina quality.
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vs LG UltraGear 32GX870A 2025 · 140 PPI · 31.5" · 240 Hz
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vs ASUS ROG Swift PG32UCDM3 2025 · 140 PPI · 31.5" · 240 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs LG UltraGear 32GX870A 2025 · 140 PPI · 31.5" · 240 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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