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BenQ RD280U vs MSI MPG 321URX QD-OLED 32"

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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MSI MPG 321URX QD-OLED 32"

31.5" · 3840×2160 · QD-OLED
Optimal Viewing Distance 62cm
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Advantages of BenQ RD280U

Specification BenQ RD280U MSI MPG 321URX QD-OLED 32"
Resolution 3840×2560 3840×2160
Pixel Density (PPI) 164 140
Optimal Viewing Distance 53cm 62cm
SDR Brightness 350 nits 250 nits

Advantages of MSI MPG 321URX QD-OLED 32"

Specification BenQ RD280U MSI MPG 321URX QD-OLED 32"
Screen Size 28.2" 31.5"
Refresh Rate 60 Hz 240 Hz
Response Time 5 ms GTG 0.0 ms GTG
HDR Peak Brightness 400 nits 1000 nits
Contrast Ratio 1:1,200 1:1,500,000
Color Gamut sRGB 100% · DCI-P3 93% · Adobe RGB 87% sRGB 100% · DCI-P3 99% · Adobe RGB 96%

Identical

Specification BenQ RD280U MSI MPG 321URX QD-OLED 32"
Panel Type IPS QD-OLED
Viewing Angle 178° 178°
Aspect Ratio 3:2 16:9
Variable Refresh Rate (VRR) None FreeSync Premium Pro
HDR Certification DisplayHDR 400 DisplayHDR True Black 400
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
Year 2024 2024

Summary

Sharpness: no visible difference

Both screens exceed the retina threshold at 65cm. The BenQ RD280U has 17% higher pixel density (164 vs 140 PPI), but this only becomes visible below 53cm.

Brightness: advantage BenQ RD280U

The BenQ RD280U is 40% brighter in SDR (350 vs 250 nits), a noticeable difference for outdoor readability. HDR peak: 400 vs 1000 nits.

All specifications
Specification BenQ RD280U 2024 MSI MPG 321URX QD-OLED 32" 2024
Screen Size 28.2" 31.5" (Better)
Resolution 3840×2560 (Better) 3840×2160
Pixel Density (PPI) 164 (Better) 140
Optimal Viewing Distance 53cm (Better) 62cm
Panel Type IPS QD-OLED
Viewing Angle 178° 178°
Aspect Ratio 3:2 16:9
Refresh Rate 60 Hz 240 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) 250 nits
HDR Peak Brightness 400 nits 1000 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 99% · Adobe RGB 96% (Better)
Year 2024 2024

Frequently Asked Questions

Which has better PPI: BenQ RD280U or MSI MPG 321URX QD-OLED 32"?
The BenQ RD280U has 164 PPI compared to 140 PPI for the MSI MPG 321URX QD-OLED 32".
Which has a closer optimal viewing distance?
The BenQ RD280U requires 53cm vs 62cm for the MSI MPG 321URX QD-OLED 32" 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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