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Samsung S90D 65" vs TCL QM8 75"

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

Samsung S90D 65"

65" · 3840×2160 · QD-OLED
Optimal Viewing Distance 1.3m
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TCL QM8 75"

75" · 3840×2160 · Mini-LED
Optimal Viewing Distance 1.5m
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Specification Samsung S90D 65" 2024 TCL QM8 75" 2024
Screen Size 65" 75" (Better)
Resolution 3840×2160 3840×2160
Pixel Density (PPI) 68 (Better) 59
Optimal Viewing Distance 1.3m (Better) 1.5m
Panel Type QD-OLED Mini-LED
Viewing Angle 178° 178°
Aspect Ratio 16:9 16:9
Refresh Rate 144 Hz (Better) 120 Hz
Variable Refresh Rate (VRR) FreeSync Premium Pro FreeSync Premium Pro
Response Time 0.1 ms GTG (Better) 3 ms GTG
HDR Certification None None
SDR Brightness 250 nits 1364 nits (Better)
HDR Peak Brightness 1500 nits 5000 nits (Better)
Contrast Ratio 1:1,000,000 (Better) 1:5,000
Ports 4x HDMI · 0x DP 4x HDMI · 0x DP
Color Gamut sRGB 100% · DCI-P3 98% · Adobe RGB 97% (Better) sRGB 100% · DCI-P3 97% · Adobe RGB 90%
Year 2024 2024

Summary

The Samsung S90D 65" has higher pixel density (68 PPI), making it sharper at close range.

The Samsung S90D 65" allows sitting closer (1.3m) while maintaining retina quality.

The TCL QM8 75" offers a larger 75" display for more immersive viewing.

Frequently Asked Questions

Which has better PPI: Samsung S90D 65" or TCL QM8 75"?
The Samsung S90D 65" has 68 PPI compared to 59 PPI for the TCL QM8 75".
Which has a closer optimal viewing distance?
The Samsung S90D 65" requires 1.3m vs 1.5m for the TCL QM8 75" 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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