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ASUS ROG Swift OLED PG34WCDM 34" vs MSI MPG 321URX QD-OLED 32"

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

ASUS ROG Swift OLED PG34WCDM 34"

33.94" · 3440×1440 · OLED
Optimal Viewing Distance 80cm
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MSI MPG 321URX QD-OLED 32"

31.5" · 3840×2160 · QD-OLED
Optimal Viewing Distance 62cm
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Category Ranking

Pixel Density (PPI)67in category
ASUS ROG Swift OLED PG34WCDM 34"110 PPI #47
MSI MPG 321URX QD-OLED 32"140 PPI #30
93 PPI224 PPI
HDR Peak Brightness67in category
ASUS ROG Swift OLED PG34WCDM 34"1300 nits #3
MSI MPG 321URX QD-OLED 32"1000 nits #7
250 nits2000 nits
DCI-P3 Color Gamut63in category
ASUS ROG Swift OLED PG34WCDM 34"99% #2
MSI MPG 321URX QD-OLED 32"99% #2
79%100%
Refresh Rate
ASUS ROG Swift OLED PG34WCDM 34"240 Hz
MSI MPG 321URX QD-OLED 32"240 Hz
StandardHighUltra

Summary

  • Sharpness: advantage MSI MPG 321URX QD-OLED 32" — At 65cm, the MSI MPG 321URX QD-OLED 32" is retina (140 PPI) while the ASUS ROG Swift OLED PG34WCDM 34" is not — you need to sit at least 80cm away for pixel-free viewing.
  • Brightness: advantage ASUS ROG Swift OLED PG34WCDM 34" — Similar SDR brightness (270 vs 250 nits), but the ASUS ROG Swift OLED PG34WCDM 34" leads in HDR peak (1300 vs 1000 nits).

Key Differences

Specification ASUS ROG Swift OLED PG34WCDM 34" MSI MPG 321URX QD-OLED 32"
Screen Size 33.94" 31.5"
SDR Brightness 270 nits 250 nits
HDR Peak Brightness 1300 nits 1000 nits
Color Gamut sRGB 135% · DCI-P3 99% · Adobe RGB 95% sRGB 100% · DCI-P3 99% · Adobe RGB 96%
Resolution 3440×1440 3840×2160
Pixel Density (PPI) 110 140
Optimal Viewing Distance 80cm 62cm
All specifications
Specification ASUS ROG Swift OLED PG34WCDM 34" 2024 MSI MPG 321URX QD-OLED 32" 2024
Screen Size 33.94" (Better) 31.5"
Resolution 3440×1440 3840×2160 (Better)
Pixel Density (PPI) 110 140 (Better)
Optimal Viewing Distance 80cm 62cm (Better)
Panel Type OLED QD-OLED
Viewing Angle 178° 178°
Aspect Ratio 21:9 16:9
Refresh Rate 240 Hz 240 Hz
Variable Refresh Rate (VRR) FreeSync Premium Pro FreeSync Premium Pro
Response Time 0.0 ms GTG 0.0 ms GTG
HDR Certification DisplayHDR True Black 400 DisplayHDR True Black 400
SDR Brightness 270 nits (Better) 250 nits
HDR Peak Brightness 1300 nits (Better) 1000 nits
Contrast Ratio 1:1,500,000 1:1,500,000
Ports 2x 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 135% · DCI-P3 99% · Adobe RGB 95% (Better) sRGB 100% · DCI-P3 99% · Adobe RGB 96%
Year 2024 2024

Frequently Asked Questions

Which has better PPI: ASUS ROG Swift OLED PG34WCDM 34" or MSI MPG 321URX QD-OLED 32"?
The MSI MPG 321URX QD-OLED 32" has 140 PPI compared to 110 PPI for the ASUS ROG Swift OLED PG34WCDM 34".
Which has a closer optimal viewing distance?
The MSI MPG 321URX QD-OLED 32" requires 62cm vs 80cm for the ASUS ROG Swift OLED PG34WCDM 34" 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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