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ASUS ROG Strix XG309CM vs LG UltraFine evo 32U990A-S

Side-by-side comparison of viewing distance, PPI, and specifications

ASUS ROG Strix XG309CM

29.5" · 2560×1080 · IPS
Optimal Viewing Distance 93cm
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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 Strix XG309CM 2022 LG UltraFine evo 32U990A-S 2025
Screen Size 29.5" 31.5" (Better)
Resolution 2560×1080 6144×3456 (Better)
Pixel Density (PPI) 94 224 (Better)
Optimal Viewing Distance 93cm 39cm (Better)
Panel Type IPS IPS
Viewing Angle 178° 178°
Aspect Ratio 21:9 16:9
Refresh Rate 220 Hz (Better) 60 Hz
Variable Refresh Rate (VRR) FreeSync Premium None
Response Time 1 ms GTG (Better) 5 ms GTG
HDR Certification None DisplayHDR 600
SDR Brightness 300 nits 450 nits (Better)
HDR Peak Brightness 300 nits 600 nits (Better)
Contrast Ratio 1:1,000 1:2,000 (Better)
Ports 1x HDMI · 1x DP · USB-C · USB Hub 1x HDMI · 1x DP · USB-C · USB Hub
USB-C Power Delivery 15 W 96 W (Better)
Color Gamut sRGB 110% (Better) sRGB 100% · DCI-P3 98% · Adobe RGB 99.5%
Year 2022 2025 (Better)

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 Strix XG309CM or LG UltraFine evo 32U990A-S?
The LG UltraFine evo 32U990A-S has 224 PPI compared to 94 PPI for the ASUS ROG Strix XG309CM.
Which has a closer optimal viewing distance?
The LG UltraFine evo 32U990A-S requires 39cm 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).

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