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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.

  • Dell U2726DER €15.13
  • ASUS VA27AQSE €8.06
Model Dell U2726DER ASUS VA27AQSE
Running cost
Running cost (per year) €15.13 €8.06
over 10 years €151 +€71 over 10 years €81
kWh per year 53.4 28.5
kg CO₂e per year from electricity use 11 6
Specifications
Brand Dell ASUS
Model U2726DER VA27AQSE
Energy class F C
Screen size 27″ (68.5 cm) 27″ (68.5 cm)
Power in on mode (SDR) 24.4 W 13 W
Standby 0.5 W 0.5 W
Networked standby 1.5 W –
Off mode 0.3 W 0.3 W
Resolution 2560 × 1440 2560 × 1440
Aspect ratio 16:9 16:9
Panel LED LCD LED LCD
Refresh rate 60 Hz 60 Hz
Power supply Internal Internal
Guaranteed support 7 years 7 years
Software updates 8 years 8 years
Spare parts available 7 years 7 years
On the market since June 30, 2026 July 14, 2025
EPREL registration number 2708897 2378081
Energy class (HDR) – G
Power in on mode (HDR) – 37 W

Rows where the models differ are highlighted.