ASUS ROG Strix XG27JCG vs ASUS ROG Swift OLED PG27UCDM 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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Category Ranking
Pixel Density (PPI)67in category
ASUS ROG Strix XG27JCG218 PPI #5
ASUS ROG Swift OLED PG27UCDM 27"166 PPI #16
93 PPI224 PPI
HDR Peak Brightness67in category
ASUS ROG Strix XG27JCG600 nits #22
ASUS ROG Swift OLED PG27UCDM 27"1000 nits #7
250 nits2000 nits
DCI-P3 Color Gamut63in category
ASUS ROG Strix XG27JCG97% #44
ASUS ROG Swift OLED PG27UCDM 27"99% #2
79%100%
Refresh Rate
ASUS ROG Strix XG27JCG180 Hz
ASUS ROG Swift OLED PG27UCDM 27"240 Hz
StandardHighUltra
Summary
- Sharpness: no visible difference — Both screens exceed the retina threshold at 65cm. The ASUS ROG Strix XG27JCG has 31% higher pixel density (218 vs 166 PPI), but this only becomes visible below 40cm.
- Brightness: advantage ASUS ROG Strix XG27JCG — The ASUS ROG Strix XG27JCG is 40% brighter in SDR (350 vs 250 nits), a noticeable difference for outdoor readability. HDR peak: 600 vs 1000 nits.
Key Differences
| Specification | ASUS ROG Strix XG27JCG | ASUS ROG Swift OLED PG27UCDM 27" |
|---|---|---|
| Screen Size | 27" | 26.5" |
| Resolution | 5120×2880 | 3840×2160 |
| Pixel Density (PPI) | 218 | 166 |
| Optimal Viewing Distance | 40cm | 53cm |
| SDR Brightness | 350 nits | 250 nits |
| Year | 2026 | 2025 |
| Refresh Rate | 180 Hz | 240 Hz |
| Response Time | 1 ms GTG | 0.0 ms GTG |
| HDR Peak Brightness | 600 nits | 1000 nits |
| Contrast Ratio | 1:1,500 | 1:1,500,000 |
| Color Gamut | sRGB 100% · DCI-P3 97% | sRGB 145% · DCI-P3 99% · Adobe RGB 94% |
All specifications
| Specification | ASUS ROG Strix XG27JCG 2026 | ASUS ROG Swift OLED PG27UCDM 27" 2025 |
|---|---|---|
| Screen Size | 27" (Better) | 26.5" |
| Resolution | 5120×2880 (Better) | 3840×2160 |
| Pixel Density (PPI) | 218 (Better) | 166 |
| Optimal Viewing Distance | 40cm (Better) | 53cm |
| Panel Type | IPS | QD-OLED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 16:9 |
| Refresh Rate | 180 Hz | 240 Hz (Better) |
| Variable Refresh Rate (VRR) | FreeSync Premium Pro | FreeSync Premium Pro |
| Response Time | 1 ms GTG | 0.0 ms GTG (Better) |
| HDR Certification | DisplayHDR 600 | DisplayHDR True Black 400 |
| SDR Brightness | 350 nits (Better) | 250 nits |
| HDR Peak Brightness | 600 nits | 1000 nits (Better) |
| Contrast Ratio | 1:1,500 | 1:1,500,000 (Better) |
| Ports | 2x HDMI · 1x DP · USB-C · USB Hub | 2x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | — | 90 W |
| Color Gamut | sRGB 100% · DCI-P3 97% | sRGB 145% · DCI-P3 99% · Adobe RGB 94% (Better) |
| Year | 2026 (Better) | 2025 |
Frequently Asked Questions
Which has better PPI: ASUS ROG Strix XG27JCG or ASUS ROG Swift OLED PG27UCDM 27"?
The ASUS ROG Strix XG27JCG has 218 PPI compared to 166 PPI for the ASUS ROG Swift OLED PG27UCDM 27".
Which has a closer optimal viewing distance?
The ASUS ROG Strix XG27JCG requires 40cm vs 53cm for the ASUS ROG Swift OLED PG27UCDM 27" to reach retina quality.
Related Comparisons
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs ASUS ROG Strix XG27JCG 2026 · 218 PPI · 27" · 180 Hz
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs ASUS ROG Swift OLED PG27UCDM 27" 2025 · 166 PPI · 26.5" · 240 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs ASUS ROG Strix XG27JCG 2026 · 218 PPI · 27" · 180 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs ASUS ROG Swift OLED PG27UCDM 27" 2025 · 166 PPI · 26.5" · 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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