Compare models
4 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
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
- Armaggeddon XC34UWQHD SUPER G180 G-Sync €15.88
| Model | Cooler Master GM34-CWQ2 | Acer X34 X0 | Ozone OZON G3425 WQHD | Armaggeddon XC34UWQHD SUPER G180 G-Sync |
|---|---|---|---|---|
| Running cost | ||||
| Running cost (per year) | €19.23 | €14.64 | €15.51 | €15.88 |
| over 10 years | €192 +€46 over 10 years | €146 | €155 +€9 over 10 years | €159 +€12 over 10 years |
| kWh per year | 67.9 | 51.7 | 54.8 | 56.1 |
| kg CO₂e per year from electricity use | 14 | 11 | 11 | 12 |
| Specifications | ||||
| Brand | Cooler Master | Acer | Ozone | Armaggeddon |
| Model | GM34-CWQ2 | X34 X0 | OZON G3425 WQHD | XC34UWQHD SUPER G180 G-Sync |
| Energy class | F | E | E | E |
| Screen size | 34″ (86.4 cm) | 34″ (86.4 cm) | 34″ (86.4 cm) | 34″ (86.4 cm) |
| Power in on mode (SDR) | 31 W | 23.6 W | 25 W | 25.6 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 | 0.2 W |
| Off mode | 0.3 W | 0.3 W | 0.2 W | 0.2 W |
| Resolution | 3440 × 1440 | 3440 × 1440 | 3440 × 1440 | 3440 × 1440 |
| Aspect ratio | 21:9 | 21:9 | 32:9 | 16:9 |
| Panel | LED LCD | LED LCD | LED LCD | LCD |
| Refresh rate | 180 Hz | 200 Hz | 180 Hz | 180 Hz |
| Power supply | Internal | Internal | External | External |
| Guaranteed support | 7 years | 7 years | 6 years | 3 years |
| Software updates | 8 years | 8 years | 6 years | 3 years |
| Spare parts available | 7 years | 7 years | 6 years | 3 years |
| On the market since | October 13, 2023 | March 18, 2025 | August 22, 2025 | September 26, 2025 |
| EPREL registration number | 1806486 | 2343889 | 2451313 | 2483896 |
| Networked standby | – | – | 0 W | 0 W |
Rows where the models differ are highlighted.