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2 monitors side by side.

6 h a day
  • 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.

Yearly running cost

Bars in proportion to the energy each model uses.

  • Acer XV342CK €22.33
  • MSI MAG 346CQ €19.23
Model Acer XV342CK MSI MAG 346CQ
Running cost
Running cost (per year) €22.33 €19.23
over 10 years €223 +€31 over 10 years €192
kWh per year 78.8 67.9
kg CO₂e per year from electricity use 17 14
Specifications
Brand Acer MSI
Model XV342CK MAG 346CQ
Energy class G F
Screen size 34″ (86.4 cm) 34″ (87 cm)
Power in on mode (SDR) 36 W 31 W
Energy class (HDR) G G
Power in on mode (HDR) 57 W 51 W
Standby 0.5 W 0.5 W
Off mode 0 W 0.3 W
Resolution 3440 × 1440 3440 × 1440
Aspect ratio 21:9 16:9
Panel LED LCD LED LCD
Refresh rate 144 Hz 180 Hz
Power supply Internal Internal
Guaranteed support 7 years 3 years
Software updates 8 years 8 years
Spare parts available 7 years 3 years
On the market since March 1, 2021 January 31, 2025
EPREL registration number 399659 2223008

Rows where the models differ are highlighted.