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.
- Acer DM431K €36.10
- iiyama X4373UHSU-B2 €25.37
| Model | Acer DM431K | iiyama X4373UHSU-B2 |
|---|---|---|
| Running cost | ||
| Running cost (per year) | €36.10 | €25.37 |
| over 10 years | €361 +€107 over 10 years | €254 |
| kWh per year | 127 | 89.6 |
| kg CO₂e per year from electricity use | 27 | 19 |
| Specifications | ||
| Brand | Acer | iiyama |
| Model | DM431K | X4373UHSU-B2 |
| Energy class | G | E |
| Screen size | 43″ (109.2 cm) | 43″ (108 cm) |
| Power in on mode (SDR) | 58.2 W | 40.9 W |
| Energy class (HDR) | G | G |
| Power in on mode (HDR) | 67.1 W | 79.1 W |
| Standby | 0.5 W | 0.5 W |
| Off mode | 0.3 W | 0.3 W |
| Resolution | 3840 × 2160 | 3840 × 2160 |
| Aspect ratio | 16:9 | 16:9 |
| Panel | LED LCD | LED LCD |
| Refresh rate | 60 Hz | 60 Hz |
| Power supply | Internal | Internal |
| Guaranteed support | 7 years | 7 years |
| Software updates | 8 years | 8 years |
| Spare parts available | 7 years | 7 years |
| On the market since | May 14, 2019 | November 20, 2025 |
| EPREL registration number | 403686 | 2518811 |
Rows where the models differ are highlighted.