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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.

  • Gamepower RAPID €13.33
  • James Donkey EPIC J60 €7.63
  • Cepter C27ESPORTP540 €12.40
Model Gamepower RAPID James Donkey EPIC J60 Cepter C27ESPORTP540
Running cost
Running cost (per year) €13.33 €7.63 €12.40
over 10 years €133 +€57 over 10 years €76 €124 +€48 over 10 years
kWh per year 47.1 26.9 43.8
kg CO₂e per year from electricity use 9.9 5.7 9.2
Specifications
Brand Gamepower James Donkey Cepter
Model RAPID EPIC J60 C27ESPORTP540
Energy class E E E
Screen size 27″ (68.6 cm) 27″ (68.6 cm) 27″ (68.5 cm)
Power in on mode (SDR) 21.5 W 12.3 W 20 W
Standby 0.4 W 0.4 W 0.2 W
Networked standby 0 W 0 W –
Off mode 0.3 W 0 W 0.1 W
Resolution 1920 × 1080 1920 × 1080 1920 × 1080
Aspect ratio 16:9 16:9 16:9
Panel LCD LCD LCD
Refresh rate 360 Hz 360 Hz 540 Hz
Power supply External External External
Guaranteed support 5 years – 7 years
Spare parts available 2 years – 7 years
On the market since March 28, 2025 December 27, 2024 March 1, 2025
EPREL registration number 2314378 2231752 2259487
Energy class (HDR) – – G
Power in on mode (HDR) – – 35 W
Software updates – – 7 years

Rows where the models differ are highlighted.