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.
- Corsair RDD0023 €15.75
- Cepter C27ESPORTP4 €9.92
- Rampage PRIME PR27F300QH €11.41
| Model | Corsair RDD0023 | Cepter C27ESPORTP4 | Rampage PRIME PR27F300QH |
|---|---|---|---|
| Running cost | |||
| Running cost (per year) | €15.75 | €9.92 | €11.41 |
| over 10 years | €158 +€58 over 10 years | €99 | €114 +€15 over 10 years |
| kWh per year | 55.6 | 35 | 40.3 |
| kg CO₂e per year from electricity use | 12 | 7.4 | 8.5 |
| Specifications | |||
| Brand | Corsair | Cepter | Rampage |
| Model | RDD0023 | C27ESPORTP4 | PRIME PR27F300QH |
| Energy class | F | D | E |
| Screen size | 27″ (68.6 cm) | 27″ (69 cm) | 27″ (69 cm) |
| Power in on mode (SDR) | 25.4 W | 16 W | 18.4 W |
| Energy class (HDR) | G | F | E |
| Power in on mode (HDR) | 27.4 W | 22 W | 18.5 W |
| Standby | 0.4 W | 0.2 W | 0.2 W |
| Off mode | 0.3 W | 0.2 W | 0.2 W |
| Resolution | 2560 × 1440 | 2560 × 1440 | 2560 × 1440 |
| Aspect ratio | 16:9 | 16:9 | 16:9 |
| Panel | OLED | OLED | LCD |
| Refresh rate | 240 Hz | 240 Hz | 300 Hz |
| Power supply | External | External | External |
| On the market since | April 1, 2023 | July 20, 2026 | June 5, 2025 |
| EPREL registration number | 1528762 | 2732628 | 2379796 |
| Guaranteed support | – | 7 years | 1 year |
| Software updates | – | 7 years | 1 year |
| Spare parts available | – | 7 years | 1 year |
| Networked standby | – | – | 0 W |
Rows where the models differ are highlighted.