Dell U3421WE 34" vs MSI MPG 341CQPX QD-OLED 34"
Side-by-side comparison of viewing distance, PPI, and specifications
MSI MPG 341CQPX QD-OLED 34"
34.18" · 3440×1440 · QD-OLED
Optimal Viewing Distance 80cm
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Category Ranking
Pixel Density (PPI)67in category
Dell U3421WE 34"110 PPI #47
MSI MPG 341CQPX QD-OLED 34"109 PPI #55
93 PPI224 PPI
HDR Peak Brightness67in category
Dell U3421WE 34"300 nits #65
MSI MPG 341CQPX QD-OLED 34"1000 nits #7
250 nits2000 nits
DCI-P3 Color Gamut63in category
Dell U3421WE 34"95% #48
MSI MPG 341CQPX QD-OLED 34"99% #2
79%100%
Refresh Rate
Dell U3421WE 34"60 Hz
MSI MPG 341CQPX QD-OLED 34"240 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 MSI MPG 341CQPX QD-OLED 34".
- Brightness: advantage Dell U3421WE 34" — The Dell U3421WE 34" is 20% brighter in SDR (300 vs 250 nits), a noticeable difference for outdoor readability. HDR peak: 300 vs 1000 nits.
Key Differences
| Specification | Dell U3421WE 34" | MSI MPG 341CQPX QD-OLED 34" |
|---|---|---|
| Pixel Density (PPI) | 110 | 109 |
| SDR Brightness | 300 nits | 250 nits |
| Screen Size | 34" | 34.18" |
| Refresh Rate | 60 Hz | 240 Hz |
| Response Time | 5 ms GTG | 0.0 ms GTG |
| HDR Peak Brightness | 300 nits | 1000 nits |
| Contrast Ratio | 1:1,000 | 1:1,500,000 |
| USB-C Power Delivery | 90 W | 98 W |
| Color Gamut | sRGB 99% · DCI-P3 95% | sRGB 139% · DCI-P3 99% · Adobe RGB 98% |
| Year | 2021 | 2024 |
All specifications
| Specification | Dell U3421WE 34" 2021 | MSI MPG 341CQPX QD-OLED 34" 2024 |
|---|---|---|
| Screen Size | 34" | 34.18" (Better) |
| Resolution | 3440×1440 | 3440×1440 |
| Pixel Density (PPI) | 110 (Better) | 109 |
| Optimal Viewing Distance | 80cm | 80cm |
| Panel Type | IPS | QD-OLED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 21:9 | 21:9 |
| Refresh Rate | 60 Hz | 240 Hz (Better) |
| Variable Refresh Rate (VRR) | None | FreeSync Premium Pro |
| Response Time | 5 ms GTG | 0.0 ms GTG (Better) |
| HDR Certification | None | DisplayHDR True Black 400 |
| SDR Brightness | 300 nits (Better) | 250 nits |
| HDR Peak Brightness | 300 nits | 1000 nits (Better) |
| Contrast Ratio | 1:1,000 | 1:1,500,000 (Better) |
| Ports | 2x HDMI · 1x DP · USB-C · USB Hub | 2x HDMI · 1x DP · USB-C · USB Hub |
| USB-C Power Delivery | 90 W | 98 W (Better) |
| Color Gamut | sRGB 99% · DCI-P3 95% | sRGB 139% · DCI-P3 99% · Adobe RGB 98% (Better) |
| Year | 2021 | 2024 (Better) |
Frequently Asked Questions
Which has better PPI: Dell U3421WE 34" or MSI MPG 341CQPX QD-OLED 34"?
The Dell U3421WE 34" has 110 PPI compared to 109 PPI for the MSI MPG 341CQPX QD-OLED 34".
Which has a closer optimal viewing distance?
Both require 80cm for retina quality.
Related Comparisons
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs Dell U3421WE 34" 2021 · 110 PPI · 34" · 60 Hz
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs MSI MPG 341CQPX QD-OLED 34" 2024 · 109 PPI · 34.18" · 240 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs Dell U3421WE 34" 2021 · 110 PPI · 34" · 60 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs MSI MPG 341CQPX QD-OLED 34" 2024 · 109 PPI · 34.18" · 240 Hz
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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