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.
- KTC H34S18S €19.85
- Acer X34 X0 €14.64
- Armaggeddon XC34UWQHD SUPER G180 G-Sync €15.88
| Model | KTC H34S18S | Acer X34 X0 | Armaggeddon XC34UWQHD SUPER G180 G-Sync |
|---|---|---|---|
| Running cost | |||
| Running cost (per year) | €19.85 | €14.64 | €15.88 |
| over 10 years | €198 +€52 over 10 years | €146 | €159 +€12 over 10 years |
| kWh per year | 70.1 | 51.7 | 56.1 |
| kg CO₂e per year from electricity use | 15 | 11 | 12 |
| Specifications | |||
| Brand | KTC | Acer | Armaggeddon |
| Model | H34S18S | X34 X0 | XC34UWQHD SUPER G180 G-Sync |
| Energy class | G | E | E |
| Screen size | 34″ (86 cm) | 34″ (86.4 cm) | 34″ (86.4 cm) |
| Power in on mode (SDR) | 32 W | 23.6 W | 25.6 W |
| Energy class (HDR) | G | G | – |
| Power in on mode (HDR) | 54 W | 34 W | – |
| Standby | 0.2 W | 0.5 W | 0.2 W |
| Off mode | 0.2 W | 0.3 W | 0.2 W |
| Resolution | 3440 × 1440 | 3440 × 1440 | 3440 × 1440 |
| Aspect ratio | 16:9 | 21:9 | 16:9 |
| Panel | TFT-LCD | LED LCD | LCD |
| Refresh rate | 180 Hz | 200 Hz | 180 Hz |
| Power supply | External | Internal | External |
| On the market since | October 18, 2024 | March 18, 2025 | September 26, 2025 |
| EPREL registration number | 2175128 | 2343889 | 2483896 |
| Guaranteed support | – | 7 years | 3 years |
| Software updates | – | 8 years | 3 years |
| Spare parts available | – | 7 years | 3 years |
| Networked standby | – | – | 0 W |
Rows where the models differ are highlighted.