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.
- LG 39GX90SB €24.99
- LG 39GS96QB €23.38
- Acer X39 €23.57
| Model | LG 39GX90SB | LG 39GS96QB | Acer X39 |
|---|---|---|---|
| Running cost | |||
| Running cost (per year) | €24.99 | €23.38 | €23.57 |
| over 10 years | €250 +€16 over 10 years | €234 | €236 +€2 over 10 years |
| kWh per year | 88.3 | 82.6 | 83.2 |
| kg CO₂e per year from electricity use | 19 | 17 | 17 |
| Specifications | |||
| Brand | LG | LG | Acer |
| Model | 39GX90SB | 39GS96QB | X39 |
| Energy class | G | F | F |
| Screen size | 39″ (99.2 cm) | 39″ (99.2 cm) | 39″ (99 cm) |
| Power in on mode (SDR) | 40.3 W | 37.7 W | 38 W |
| Energy class (HDR) | G | F | F |
| Power in on mode (HDR) | 45.9 W | 37.6 W | 34 W |
| Standby | 0.5 W | 0.5 W | 0.5 W |
| Networked standby | 2 W | – | – |
| Resolution | 3440 × 1440 | 3440 × 1440 | 3440 × 1440 |
| Aspect ratio | 21:9 | 21:9 | 21:9 |
| Panel | OLED | OLED | OLED |
| Refresh rate | 60 Hz | 60 Hz | 60 Hz |
| Power supply | External | External | Internal |
| Guaranteed support | 8 years | 8 years | 7 years |
| Software updates | 8 years | 8 years | 8 years |
| Spare parts available | 8 years | 8 years | 7 years |
| On the market since | May 27, 2026 | July 25, 2024 | March 28, 2024 |
| EPREL registration number | 2739552 | 2086466 | 1899860 |
| Off mode | – | 0.3 W | 0.3 W |
Rows where the models differ are highlighted.