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3 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.

  • Philips 172B9TL €6.20
  • Dell E1715S €5.58
  • ViewSonic VS20244 / XF1740 €4.90
Model Philips 172B9TL Dell E1715S ViewSonic VS20244 / XF1740
Running cost
Running cost (per year) €6.20 €5.58 €4.90
over 10 years €62 +€13 over 10 years €56 +€7 over 10 years €49
kWh per year 21.9 19.7 17.3
kg CO₂e per year from electricity use 4.6 4.1 3.6
Specifications
Brand Philips Dell ViewSonic
Model 172B9TL E1715S VS20244 / XF1740
Energy class D D C
Screen size 17″ (43.2 cm) 17″ (43.2 cm) 17″ (43.2 cm)
Power in on mode (SDR) 10 W 9 W 7.9 W
Standby 0.3 W 0.2 W 0.4 W
Off mode 0.3 W 0.2 W 0 W
Resolution 1280 × 1024 1280 × 1024 1280 × 1024
Aspect ratio 5:4 4:3 5:4
Panel LCD LED LCD LCD
Refresh rate 60 Hz 60 Hz 60 Hz
Power supply External Internal External
Guaranteed support 8 years 7 years 1 year
Software updates 8 years 8 years 1 year
Spare parts available 7 years 7 years 1 year
On the market since August 22, 2020 February 6, 2014 June 30, 2025
EPREL registration number 393967 344935 2415038

Rows where the models differ are highlighted.