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Dell S3225QC vs LG 27GP850-B 27"

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

Dell S3225QC

31.6" · 3840×2160 · QD-OLED
Optimal Viewing Distance 63cm
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LG 27GP850-B 27"

27" · 2560×1440 · IPS
Optimal Viewing Distance 80cm
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Category Ranking

Pixel Density (PPI)67in category
Dell S3225QC139 PPI #41
LG 27GP850-B 27"109 PPI #55
93 PPI224 PPI
HDR Peak Brightness67in category
Dell S3225QC1000 nits #7
LG 27GP850-B 27"400 nits #51
250 nits2000 nits
DCI-P3 Color Gamut63in category
Dell S3225QC99% #2
LG 27GP850-B 27"98% #31
79%100%
Refresh Rate
Dell S3225QC120 Hz
LG 27GP850-B 27"165 Hz
StandardHighUltra

Summary

  • Sharpness: advantage Dell S3225QC — At 65cm, the Dell S3225QC is retina (139 PPI) while the LG 27GP850-B 27" is not — you need to sit at least 80cm away for pixel-free viewing.
  • Brightness: advantage LG 27GP850-B 27" — The LG 27GP850-B 27" is 60% brighter in SDR (400 vs 250 nits), a noticeable difference for outdoor readability. HDR peak: 400 vs 1000 nits.

Key Differences

Specification Dell S3225QC LG 27GP850-B 27"
Screen Size 31.6" 27"
Resolution 3840×2160 2560×1440
Pixel Density (PPI) 139 109
Optimal Viewing Distance 63cm 80cm
Response Time 0.0 ms GTG 1 ms GTG
HDR Peak Brightness 1000 nits 400 nits
Contrast Ratio 1:1,500,000 1:1,000
Year 2025 2021
Refresh Rate 120 Hz 165 Hz
SDR Brightness 250 nits 400 nits
Color Gamut sRGB 100% · DCI-P3 99% · Adobe RGB 95% sRGB 135% · DCI-P3 98% · Adobe RGB 93%
All specifications
Specification Dell S3225QC 2025 LG 27GP850-B 27" 2021
Screen Size 31.6" (Better) 27"
Resolution 3840×2160 (Better) 2560×1440
Pixel Density (PPI) 139 (Better) 109
Optimal Viewing Distance 63cm (Better) 80cm
Panel Type QD-OLED IPS
Viewing Angle 178° 178°
Aspect Ratio 16:9 16:9
Refresh Rate 120 Hz 165 Hz (Better)
Variable Refresh Rate (VRR) FreeSync Premium FreeSync Premium
Response Time 0.0 ms GTG (Better) 1 ms GTG
HDR Certification DisplayHDR True Black 400 DisplayHDR 400
SDR Brightness 250 nits 400 nits (Better)
HDR Peak Brightness 1000 nits (Better) 400 nits
Contrast Ratio 1:1,500,000 (Better) 1:1,000
Ports 1x HDMI · USB-C · USB Hub 2x HDMI · 1x DP · USB Hub
USB-C Power Delivery 90 W
Color Gamut sRGB 100% · DCI-P3 99% · Adobe RGB 95% sRGB 135% · DCI-P3 98% · Adobe RGB 93% (Better)
Year 2025 (Better) 2021

Frequently Asked Questions

Which has better PPI: Dell S3225QC or LG 27GP850-B 27"?
The Dell S3225QC has 139 PPI compared to 109 PPI for the LG 27GP850-B 27".
Which has a closer optimal viewing distance?
The Dell S3225QC requires 63cm vs 80cm for the LG 27GP850-B 27" 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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