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.
- Corsair RDD0023 €15.75
- Cepter C27ESPORTP4 €9.92
| Model | Corsair RDD0023 | Cepter C27ESPORTP4 |
|---|---|---|
| Running cost | ||
| Running cost (per year) | €15.75 | €9.92 |
| over 10 years | €158 +€58 over 10 years | €99 |
| kWh per year | 55.6 | 35 |
| kg CO₂e per year from electricity use | 12 | 7.4 |
| Specifications | ||
| Brand | Corsair | Cepter |
| Model | RDD0023 | C27ESPORTP4 |
| Energy class | F | D |
| Screen size | 27″ (68.6 cm) | 27″ (69 cm) |
| Power in on mode (SDR) | 25.4 W | 16 W |
| Energy class (HDR) | G | F |
| Power in on mode (HDR) | 27.4 W | 22 W |
| Standby | 0.4 W | 0.2 W |
| Off mode | 0.3 W | 0.2 W |
| Resolution | 2560 × 1440 | 2560 × 1440 |
| Aspect ratio | 16:9 | 16:9 |
| Panel | OLED | OLED |
| Refresh rate | 240 Hz | 240 Hz |
| Power supply | External | External |
| On the market since | April 1, 2023 | July 20, 2026 |
| EPREL registration number | 1528762 | 2732628 |
| Guaranteed support | – | 7 years |
| Software updates | – | 7 years |
| Spare parts available | – | 7 years |
Rows where the models differ are highlighted.