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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.

  • Samsung S27HG800SU €19.85
  • Lenovo Legion Pro 27UD-10(G25270UY0) €14.88
  • Gamebooster ATLAS DUAL FU48 €15.88
Model Samsung S27HG800SU Lenovo Legion Pro 27UD-10(G25270UY0) Gamebooster ATLAS DUAL FU48
Running cost
Running cost (per year) €19.85 €14.88 €15.88
over 10 years €198 +€50 over 10 years €149 €159 +€10 over 10 years
kWh per year 70.1 52.6 56.1
kg CO₂e per year from electricity use 15 11 12
Specifications
Brand Samsung Lenovo Gamebooster
Model S27HG800SU Legion Pro 27UD-10(G25270UY0) ATLAS DUAL FU48
Energy class G F F
Screen size 27″ (67 cm) 27″ (67.3 cm) 27″ (68.6 cm)
Power in on mode (SDR) 32 W 24 W 25.6 W
Energy class (HDR) G G G
Power in on mode (HDR) 54 W 29.5 W 59.8 W
Standby 0.5 W 0.3 W 0.5 W
Off mode 0.3 W 0 W 0.3 W
Resolution 3840 × 2160 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9 16:9
Panel LED LCD OLED LCD
Refresh rate 240 Hz 240 Hz 240 Hz
Power supply External Internal Internal
Guaranteed support 7 years 7 years 10 years
Software updates 8 years 8 years 10 years
Spare parts available 7 years 7 years 10 years
On the market since May 18, 2026 July 7, 2025 February 5, 2026
EPREL registration number 2621577 2384999 2619779
Networked standby – 0 W 0 W

Rows where the models differ are highlighted.