Apple Studio Display XDR 27" vs ASUS ROG Strix XG309CM
Side-by-side comparison of viewing distance, PPI, and specifications
Apple Studio Display XDR 27"
27" · 5120×2880 · Mini-LED
Optimal Viewing Distance 40cm
Open in calculator →
| Specification | Apple Studio Display XDR 27" 2026 | ASUS ROG Strix XG309CM 2022 |
|---|---|---|
| Screen Size | 27" | 29.5" (Better) |
| Resolution | 5120×2880 (Better) | 2560×1080 |
| Pixel Density (PPI) | 218 (Better) | 94 |
| Optimal Viewing Distance | 40cm (Better) | 93cm |
| Panel Type | Mini-LED | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 21:9 |
| Refresh Rate | 120 Hz | 220 Hz (Better) |
| Variable Refresh Rate (VRR) | FreeSync | FreeSync Premium |
| Response Time | 5 ms GTG | 1 ms GTG (Better) |
| HDR Certification | None | None |
| SDR Brightness | 1000 nits (Better) | 300 nits |
| HDR Peak Brightness | 2000 nits (Better) | 300 nits |
| Contrast Ratio | 1:1,000,000 (Better) | 1:1,000 |
| Ports | 0x HDMI · 0x DP · USB-C · USB Hub | 1x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 140 W (Better) | 15 W |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 98% | sRGB 110% (Better) |
| Year | 2026 (Better) | 2022 |
Summary
The Apple Studio Display XDR 27" has higher pixel density (218 PPI), making it sharper at close range.
The Apple Studio Display XDR 27" allows sitting closer (40cm) while maintaining retina quality.
The ASUS ROG Strix XG309CM offers a larger 29.5" display for more immersive viewing.
Frequently Asked Questions
Which has better PPI: Apple Studio Display XDR 27" or ASUS ROG Strix XG309CM?
The Apple Studio Display XDR 27" has 218 PPI compared to 94 PPI for the ASUS ROG Strix XG309CM.
Which has a closer optimal viewing distance?
The Apple Studio Display XDR 27" requires 40cm vs 93cm for the ASUS ROG Strix XG309CM 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:
Related Comparisons
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs Apple Studio Display XDR 27" 2026 · 218 PPI · 27" · 120 Hz
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs ASUS ROG Strix XG309CM 2022 · 94 PPI · 29.5" · 220 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs Apple Studio Display XDR 27" 2026 · 218 PPI · 27" · 120 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs ASUS ROG Strix XG309CM 2022 · 94 PPI · 29.5" · 220 Hz