EnergyLabelEU
EN
Costs for 0.283 €/kWh · Eurostat 2026 H1

Monitors · 45″ · 3440×1440 · OLED

LG 45GX90SB

F

Uses less electricity than 37% of the 335 monitors, 43–54″ on the EU register. At your selected price (European Union) that is €19 a year, €191 over ten years.

Power, SDR
46.2 W
Typical 45 W
Running cost
€19 / year
4 h a day
Power, HDR
55.6 W
1.2× SDR

Near the middle of its group: 3 % above the typical 66 kWh. Class F is the most common class in this group (47% of models). In HDR it draws 55.6 W, 1.2 times its SDR power. LG has 34 models in this group; this one is number 19 among them.

Where it stands

Rank 209 of 335 monitors, 43–54″ by yearly consumption. 208 use less.

Median 66 This model · 68 10 275 kWh ← uses less · uses more →

Next to it in the ranking

  1. F Hikvision DS-D5043U3-1V0S 67 kWh −€0.08
  2. F LG 45GX90SA 67 kWh −€0.06
  3. F LG 45GX90SB 68 kWh
  4. F Eneo VM-FHD43M 68 kWh same
  5. G electriQ eiQ-43CVSUWD120FSHQ 68 kWh +€0.11
See the full ranking

What it will cost you

Period 45GX90SB FT-Squ-454WTA01-700 Difference
1 year €19 €4 −€16
5 years €96 €18 −€78
10 years €191 €36 −€155
15 years €287 €54 −€233

Is the more efficient model worth its price?

Years of use

Enter both purchase prices to see the total cost of ownership.

Power in SDR and HDR

SDR 46.2 W
HDR 55.6 W
Group median, SDR 45.0 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 34 €10
4 hours a day 67 €19
8 hours a day 135 €38

Same size, lower running cost

On sale, at least 10% less energy, same size group

Model SizeSDR W kWh / yr Saves / year in 10 years
F LG 45GX90SB (this model)
45″46.2 68 — —
45″8.6 13 €16 €155
44″16.6 24 €12 €123
46″17.5 26 €12 €119
46″17.5 26 €12 €119
45″31.6 46 €6 €61

Label and product sheet

Energy class SDR / HDR
F / G
On-mode power SDR
46.2 W
On-mode power HDR
55.6 W
Standby / networked standby
0.5 W / 2.0 W
Screen diagonal
45″
Resolution
3440×1440
Panel
OLED
Refresh rate
60 Hz
Software updates (minimum)
8 years
Guarantee (supplier)
1 years
Spare parts (minimum)
8 years

Model numbers and history

Registered by LG under one model number.

45GX90SB

  1. First published in the EU register (EPREL)
  2. Placed on the EU market

Questions

How much does the LG 45GX90SB cost to run?

At 4 hours a day it uses about 68 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €19 a year, or €191 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 55.6 W instead of 46.2 W, 1.2 times as much. The yearly cost on this page uses SDR, as the label does.