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BenQ RD280U vs LG UltraGear 45GX950A 45"

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

BenQ RD280U

28.2" · 3840×2560 · IPS
Optimal Viewing Distance 53cm
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LG UltraGear 45GX950A 45"

44.5" · 5120×2160 · OLED
Optimal Viewing Distance 70cm
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Specification BenQ RD280U 2024 LG UltraGear 45GX950A 45" 2025
Screen Size 28.2" 44.5" (Better)
Resolution 3840×2560 5120×2160 (Better)
Pixel Density (PPI) 164 (Better) 125
Optimal Viewing Distance 53cm (Better) 70cm
Panel Type IPS OLED
Viewing Angle 178° 178°
Aspect Ratio 3:2 21:9
Refresh Rate 60 Hz 165 Hz (Better)
Variable Refresh Rate (VRR) None FreeSync Premium Pro
Response Time 5 ms GTG 0.0 ms GTG (Better)
HDR Certification DisplayHDR 400 DisplayHDR True Black 400
SDR Brightness 350 nits (Better) 275 nits
HDR Peak Brightness 400 nits 1300 nits (Better)
Contrast Ratio 1:1,200 1:1,500,000 (Better)
Ports 1x 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 93% · Adobe RGB 87% sRGB 100% · DCI-P3 98% · Adobe RGB 94% (Better)
Year 2024 2025 (Better)

Summary

The BenQ RD280U has higher pixel density (164 PPI), making it sharper at close range.

The BenQ RD280U allows sitting closer (53cm) while maintaining retina quality.

The LG UltraGear 45GX950A 45" offers a larger 44.5" display for more immersive viewing.

Frequently Asked Questions

Which has better PPI: BenQ RD280U or LG UltraGear 45GX950A 45"?
The BenQ RD280U has 164 PPI compared to 125 PPI for the LG UltraGear 45GX950A 45".
Which has a closer optimal viewing distance?
The BenQ RD280U requires 53cm vs 70cm for the LG UltraGear 45GX950A 45" 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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