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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.

  • Amzfast Official AMZG27F5QL €15.51
  • iiyama X2792QSU-B1 A €6.64
  • AOC Q27P4U €8.06
Model Amzfast Official AMZG27F5QL iiyama X2792QSU-B1 A AOC Q27P4U
Running cost
Running cost (per year) €15.51 €6.64 €8.06
over 10 years €155 +€89 over 10 years €66 €81 +€14 over 10 years
kWh per year 54.8 23.4 28.5
kg CO₂e per year from electricity use 11 4.9 6
Specifications
Brand Amzfast Official iiyama AOC
Model AMZG27F5QL X2792QSU-B1 A Q27P4U
Energy class F B C
Screen size 27″ (68 cm) 27″ (68.5 cm) 27″ (68.5 cm)
Power in on mode (SDR) 25 W 10.7 W 13 W
Energy class (HDR) G – C
Power in on mode (HDR) 33 W – 13 W
Standby 0.5 W 0.5 W 0.3 W
Networked standby 0 W – –
Off mode 0.3 W 0.3 W 0.3 W
Resolution 2560 × 1440 2560 × 1440 2560 × 1440
Aspect ratio 16:9 16:9 16:9
Panel LED LCD LED LCD LED LCD
Refresh rate 60 Hz 60 Hz 60 Hz
Power supply External Internal Internal
On the market since September 28, 2026 June 1, 2026 July 3, 2025
EPREL registration number 2811000 2702610 2377208
Guaranteed support – 8 years 8 years
Software updates – 8 years 8 years
Spare parts available – 7 years 7 years

Rows where the models differ are highlighted.