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Dell U3423WE 34" vs Samsung ViewFinity S9 5K

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

Dell U3423WE 34"

34" · 3440×1440 · IPS
Optimal Viewing Distance 80cm
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Samsung ViewFinity S9 5K

27" · 5120×2880 · IPS
Optimal Viewing Distance 40cm
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Specification Dell U3423WE 34" 2022 Samsung ViewFinity S9 5K 2023
Screen Size 34" (Better) 27"
Resolution 3440×1440 5120×2880 (Better)
Pixel Density (PPI) 110 218 (Better)
Optimal Viewing Distance 80cm 40cm (Better)
Panel Type IPS IPS
Viewing Angle 178° 178°
Aspect Ratio 21:9 16:9
Refresh Rate 60 Hz 60 Hz
Variable Refresh Rate (VRR) None None
Response Time 5 ms GTG 5 ms GTG
HDR Certification None None
SDR Brightness 300 nits 600 nits (Better)
HDR Peak Brightness 600 nits 600 nits
Contrast Ratio 1:2,000 (Better) 1:1,000
Ports 2x HDMI · 1x DP · USB-C · USB Hub 0x HDMI · 1x DP · USB-C · USB Hub
USB-C Power Delivery 90 W 90 W
Color Gamut sRGB 100% · DCI-P3 98% · Adobe RGB 89% sRGB 100% · DCI-P3 99% · Adobe RGB 94% (Better)
Year 2022 2023 (Better)

Summary

The Samsung ViewFinity S9 5K has higher pixel density (218 PPI), making it sharper at close range.

The Samsung ViewFinity S9 5K allows sitting closer (40cm) while maintaining retina quality.

The Dell U3423WE 34" offers a larger 34" display for more immersive viewing.

Frequently Asked Questions

Which has better PPI: Dell U3423WE 34" or Samsung ViewFinity S9 5K?
The Samsung ViewFinity S9 5K has 218 PPI compared to 110 PPI for the Dell U3423WE 34".
Which has a closer optimal viewing distance?
The Samsung ViewFinity S9 5K requires 40cm vs 80cm for the Dell U3423WE 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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