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BenQ PD2706QN vs Dell U3421WE 34"

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

BenQ PD2706QN

27" · 2560×1440 · IPS
Optimal Viewing Distance 80cm
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Dell U3421WE 34"

34" · 3440×1440 · IPS
Optimal Viewing Distance 80cm
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Category Ranking

Pixel Density (PPI)67in category
BenQ PD2706QN109 PPI #55
Dell U3421WE 34"110 PPI #47
93 PPI224 PPI
HDR Peak Brightness67in category
BenQ PD2706QN400 nits #51
Dell U3421WE 34"300 nits #65
250 nits2000 nits
DCI-P3 Color Gamut63in category
BenQ PD2706QN95% #48
Dell U3421WE 34"95% #48
79%100%
Refresh Rate
BenQ PD2706QN100 Hz
Dell U3421WE 34"60 Hz
StandardHighUltra

Summary

  • Sharpness: advantage Dell U3421WE 34" — Neither screen reaches retina quality at 65cm. The Dell U3421WE 34" gets there at 80cm vs 80cm for the BenQ PD2706QN.
  • Brightness: advantage BenQ PD2706QN — The BenQ PD2706QN is 17% brighter in SDR (350 vs 300 nits), a noticeable difference for outdoor readability. HDR peak: 400 vs 300 nits.

Key Differences

Specification BenQ PD2706QN Dell U3421WE 34"
Refresh Rate 100 Hz 60 Hz
SDR Brightness 350 nits 300 nits
HDR Peak Brightness 400 nits 300 nits
Color Gamut sRGB 100% · DCI-P3 95% sRGB 99% · DCI-P3 95%
Year 2024 2021
Screen Size 27" 34"
Resolution 2560×1440 3440×1440
Pixel Density (PPI) 109 110
All specifications
Specification BenQ PD2706QN 2024 Dell U3421WE 34" 2021
Screen Size 27" 34" (Better)
Resolution 2560×1440 3440×1440 (Better)
Pixel Density (PPI) 109 110 (Better)
Optimal Viewing Distance 80cm 80cm
Panel Type IPS IPS
Viewing Angle 178° 178°
Aspect Ratio 16:9 21:9
Refresh Rate 100 Hz (Better) 60 Hz
Variable Refresh Rate (VRR) None None
Response Time 5 ms GTG 5 ms GTG
HDR Certification None None
SDR Brightness 350 nits (Better) 300 nits
HDR Peak Brightness 400 nits (Better) 300 nits
Contrast Ratio 1:1,000 1:1,000
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 95% (Better) sRGB 99% · DCI-P3 95%
Year 2024 (Better) 2021

Frequently Asked Questions

Which has better PPI: BenQ PD2706QN or Dell U3421WE 34"?
The Dell U3421WE 34" has 110 PPI compared to 109 PPI for the BenQ PD2706QN.
Which has a closer optimal viewing distance?
Both require 80cm for 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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