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.
- Cooler Master GM34-CWQ2 €19.23
- Acer X34 X0 €14.64
- Ozone OZON G3425 WQHD €15.51
| Model | Cooler Master GM34-CWQ2 | Acer X34 X0 | Ozone OZON G3425 WQHD |
|---|---|---|---|
| Running cost | |||
| Running cost (per year) | €19.23 | €14.64 | €15.51 |
| over 10 years | €192 +€46 over 10 years | €146 | €155 +€9 over 10 years |
| kWh per year | 67.9 | 51.7 | 54.8 |
| kg CO₂e per year from electricity use | 14 | 11 | 11 |
| Specifications | |||
| Brand | Cooler Master | Acer | Ozone |
| Model | GM34-CWQ2 | X34 X0 | OZON G3425 WQHD |
| Energy class | F | E | E |
| Screen size | 34″ (86.4 cm) | 34″ (86.4 cm) | 34″ (86.4 cm) |
| Power in on mode (SDR) | 31 W | 23.6 W | 25 W |
| Energy class (HDR) | G | G | – |
| Power in on mode (HDR) | 52 W | 34 W | – |
| Standby | 0.5 W | 0.5 W | 0.2 W |
| Off mode | 0.3 W | 0.3 W | 0.2 W |
| Resolution | 3440 × 1440 | 3440 × 1440 | 3440 × 1440 |
| Aspect ratio | 21:9 | 21:9 | 32:9 |
| Panel | LED LCD | LED LCD | LED LCD |
| Refresh rate | 180 Hz | 200 Hz | 180 Hz |
| Power supply | Internal | Internal | External |
| Guaranteed support | 7 years | 7 years | 6 years |
| Software updates | 8 years | 8 years | 6 years |
| Spare parts available | 7 years | 7 years | 6 years |
| On the market since | October 13, 2023 | March 18, 2025 | August 22, 2025 |
| EPREL registration number | 1806486 | 2343889 | 2451313 |
| Networked standby | – | – | 0 W |
Rows where the models differ are highlighted.