EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

Monitors · 34″ · 3440×1440 · OLED

LG 34GX90SA

G

Uses less electricity than 28% of the 1,482 monitors, 32–42″ on the EU register. At your selected price (European Union) that is €13 a year, €134 over ten years.

Power, SDR
32.3 W
Typical 31 W
Running cost
€13 / year
4 h a day
Power, HDR
38.9 W
1.2× SDR

Near the middle of its group: 3 % above the typical 46 kWh. 73% of comparable models reach a better class than G; the most common is F. In HDR it draws 38.9 W, 1.2 times its SDR power. LG has 244 models in this group; this one is number 129 among them.

Where it stands

Rank 1,043 of 1,482 monitors, 32–42″ by yearly consumption. 1,042 use less.

Median 46 This model · 47 5 135 kWh ← uses less · uses more →

Next to it in the ranking

  1. F BenQ EX3415R 47 kWh −€0.06
  2. F Philips 325B1L 47 kWh −€0.06
  3. G LG 34GX90SA 47 kWh
  4. F Kuyouke Display G32P 47 kWh same
  5. F Z Z-Edge UG32 47 kWh same
See the full ranking

What it will cost you

Period 34GX90SA LX34 ZA Difference
1 year €13 €2 −€11
5 years €67 €12 −€55
10 years €134 €24 −€110
15 years €201 €35 −€165

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 32.3 W
HDR 38.9 W
Group median, SDR 31.5 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 24 €7
4 hours a day 47 €13
8 hours a day 94 €27

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
G LG 34GX90SA (this model)
34″32.3 47 — —
34″5.7 8 €11 €110
34″5.7 8 €11 €110
34″8.0 12 €10 €101
34″15.9 23 €7 €68
34″20.0 29 €5 €51

Label and product sheet

Energy class SDR / HDR
G / G
On-mode power SDR
32.3 W
On-mode power HDR
38.9 W
Standby / networked standby
0.5 W / 2.0 W
Screen diagonal
34″
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

2 model numbers are registered by LG with identical label values (usually colour or market variants). Searching any of them leads here.

34GX90SA · 34GX90SB

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

Questions

How much does the LG 34GX90SA cost to run?

At 4 hours a day it uses about 47 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €13 a year, or €134 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 38.9 W instead of 32.3 W, 1.2 times as much. The yearly cost on this page uses SDR, as the label does.