Compare models
3 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.
- Legamaster STX-7550 €117.84
- Dell P7525QT €79.39
- Dell P7524QT €86.83
| Model | Legamaster STX-7550 | Dell P7525QT | Dell P7524QT |
|---|---|---|---|
| Running cost | |||
| Running cost (per year) | €117.84 | €79.39 | €86.83 |
| over 10 years | €1,178 +€385 over 10 years | €794 | €868 +€74 over 10 years |
| kWh per year | 416 | 280 | 307 |
| kg CO₂e per year from electricity use | 87 | 59 | 64 |
| Specifications | |||
| Brand | Legamaster | Dell | Dell |
| Model | STX-7550 | P7525QT | P7524QT |
| Energy class | D | F | G |
| Screen size | 75″ (191 cm) | 75″ (189.3 cm) | 75″ (189.3 cm) |
| Power in on mode (SDR) | 190 W | 128 W | 140 W |
| Energy class (HDR) | D | – | – |
| Power in on mode (HDR) | 190 W | – | – |
| Standby | 0.5 W | 0.5 W | 0.5 W |
| Networked standby | 0.5 W | 1.9 W | 1.5 W |
| Off mode | 0 W | 0.3 W | 0.3 W |
| Resolution | 3840 × 2160 | 3840 × 2160 | 3840 × 2160 |
| Aspect ratio | 16:9 | 16:9 | 16:9 |
| Panel | LED LCD | LED LCD | LED LCD |
| Refresh rate | 60 Hz | 60 Hz | 60 Hz |
| Power supply | Internal | Internal | Internal |
| On the market since | March 1, 2019 | March 27, 2025 | August 30, 2023 |
| EPREL registration number | 558244 | 2219976 | 1568114 |
| Guaranteed support | – | 7 years | 7 years |
| Software updates | – | 8 years | 8 years |
| Spare parts available | – | 7 years | 7 years |
Rows where the models differ are highlighted.