Compare models
2 monitors side by side.
- Electricity at €0.2832 per kWh (household price with taxes, Eurostat 2026-S1).
- 210 g CO₂e per kWh generated in 2023 (European Environment Agency). Counts use only, not manufacturing.
Electricity prices in all EU countries
- Cheapest to run
- Add a model Use the Compare buttons on any of the monitors.
Yearly running cost
Bars in proportion to the energy each model uses.
- Productos Prisma Pro P3.91 €4.96
- Dell P1425 €3.35
| Model | Productos Prisma Pro P3.91 | Dell P1425 |
|---|---|---|
| Running cost | ||
| Running cost (per year) | €4.96 | €3.35 |
| over 10 years | €50 +€16 over 10 years | €33 |
| kWh per year | 17.5 | 11.8 |
| kg CO₂e per year from electricity use | 3.7 | 2.5 |
| Specifications | ||
| Brand | Productos Prisma Pro | Dell |
| Model | P3.91 | P1425 |
| Energy class | A | B |
| Screen size | 14″ (50 cm) | 14″ (35.6 cm) |
| Power in on mode (SDR) | 8 W | 5.4 W |
| Energy class (HDR) | A | – |
| Power in on mode (HDR) | 8 W | – |
| Standby | 0.2 W | 0.3 W |
| Networked standby | 0 W | – |
| Off mode | 0.2 W | 0.3 W |
| Resolution | 1920 × 1200 | 1920 × 1200 |
| Aspect ratio | 16:9 | 16:10 |
| Panel | LED LCD | LED LCD |
| Refresh rate | 50 Hz | 60 Hz |
| Power supply | Internal | STANDARD EXTERNAL |
| Guaranteed support | 3 years | 7 years |
| Software updates | 3 years | 8 years |
| Spare parts available | 3 years | 7 years |
| On the market since | December 18, 2025 | February 25, 2025 |
| EPREL registration number | 2577718 | 2169254 |
Rows where the models differ are highlighted.