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

Monitors · 27″ · 3840×2160 · LED LCD

AOC U27B3AF

F

Uses less electricity than 20% of the 4,819 monitors, 24–31″ on the EU register. At your selected price (European Union) that is €10 a year, €103 over ten years.

Power, SDR
25.0 W
Typical 21 W
Running cost
€10 / year
4 h a day
Power, HDR
40.0 W
1.6× SDR

Uses more than most comparable models: 80 % of them need less. Teamgee TG-S10 PRO, the most efficient alternative on sale, saves about €8 a year. 65% of comparable models reach a better class than F; the most common is E. In HDR it draws 40.0 W, 1.6 times its SDR power. AOC has 142 models in this group; this one is number 118 among them.

Where it stands

Rank 3,640 of 4,819 monitors, 24–31″ by yearly consumption. 3,639 use less.

Median 30 This model · 37 5 115 kWh ← uses less · uses more →

Next to it in the ranking

  1. F ADX A30A3M25 37 kWh same
  2. F AOC U27B3CF 37 kWh same
  3. F AOC U27B3AF 37 kWh
  4. F Acer SH272U E 37 kWh same
  5. F Acer XB273U V3 37 kWh same
See the full ranking

What it will cost you

Period U27B3AF TG-S10 PRO Difference
1 year €10 €2 −€8
5 years €52 €11 −€41
10 years €103 €22 −€82
15 years €155 €32 −€123

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 25.0 W
HDR 40.0 W
Group median, SDR 20.5 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 18 €5
4 hours a day 37 €10
8 hours a day 73 €21

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 AOC U27B3AF (this model)
27″25.0 37 — —
28″5.2 8 €8 €82
27″7.0 10 €7 €74
27″7.0 10 €7 €74
27″7.0 10 €7 €74
27″8.0 12 €7 €70

Label and product sheet

Energy class SDR / HDR
F / G
On-mode power SDR
25.0 W
On-mode power HDR
40.0 W
Standby / networked standby
0.5 W
Screen diagonal
27″
Resolution
3840×2160
Panel
LED LCD
Refresh rate
60 Hz
Software updates (minimum)
8 years
Guarantee (supplier)
3 years
Spare parts (minimum)
7 years

Model numbers and history

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

U27B3AF · U27B3A

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

Questions

How much does the AOC U27B3AF cost to run?

At 4 hours a day it uses about 37 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €10 a year, or €103 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 40.0 W instead of 25.0 W, 1.6 times as much. The yearly cost on this page uses SDR, as the label does.