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Kuycon Q34W vs Samsung ViewFinity S9 5K

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

Kuycon Q34W

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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Category Ranking

Pixel Density (PPI)67in category
Kuycon Q34W110 PPI #47
Samsung ViewFinity S9 5K218 PPI #5
93 PPI224 PPI
HDR Peak Brightness67in category
Kuycon Q34W500 nits #42
Samsung ViewFinity S9 5K600 nits #22
250 nits2000 nits
DCI-P3 Color Gamut63in category
Kuycon Q34W96% #45
Samsung ViewFinity S9 5K99% #2
79%100%
Refresh Rate
Kuycon Q34W165 Hz
Samsung ViewFinity S9 5K60 Hz
StandardHighUltra

Summary

  • Sharpness: advantage Samsung ViewFinity S9 5K — At 65cm, the Samsung ViewFinity S9 5K is retina (218 PPI) while the Kuycon Q34W is not — you need to sit at least 80cm away for pixel-free viewing.
  • Brightness: advantage Samsung ViewFinity S9 5K — The Samsung ViewFinity S9 5K is 20% brighter in SDR (600 vs 500 nits), a noticeable difference for outdoor readability. HDR peak: 600 vs 500 nits.

Key Differences

Specification Kuycon Q34W Samsung ViewFinity S9 5K
Screen Size 34" 27"
Refresh Rate 165 Hz 60 Hz
USB-C Power Delivery 100 W 90 W
Year 2025 2023
Resolution 3440×1440 5120×2880
Pixel Density (PPI) 110 218
Optimal Viewing Distance 80cm 40cm
SDR Brightness 500 nits 600 nits
HDR Peak Brightness 500 nits 600 nits
Color Gamut sRGB 99% · DCI-P3 96% sRGB 100% · DCI-P3 99% · Adobe RGB 94%
All specifications
Specification Kuycon Q34W 2025 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 165 Hz (Better) 60 Hz
Variable Refresh Rate (VRR) G-SYNC Compatible None
Response Time 5 ms GTG 5 ms GTG
HDR Certification None None
SDR Brightness 500 nits 600 nits (Better)
HDR Peak Brightness 500 nits 600 nits (Better)
Contrast Ratio 1:1,000 1:1,000
Ports 2x HDMI · 1x DP · USB-C · USB Hub 1x DP · USB-C · USB Hub
USB-C Power Delivery 100 W (Better) 90 W
Color Gamut sRGB 99% · DCI-P3 96% sRGB 100% · DCI-P3 99% · Adobe RGB 94% (Better)
Year 2025 (Better) 2023

Frequently Asked Questions

Which has better PPI: Kuycon Q34W or Samsung ViewFinity S9 5K?
The Samsung ViewFinity S9 5K has 218 PPI compared to 110 PPI for the Kuycon Q34W.
Which has a closer optimal viewing distance?
The Samsung ViewFinity S9 5K requires 40cm vs 80cm for the Kuycon Q34W 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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