The power consumption of gaming PCs is high. Still, powerful gaming hardware is made to be used. And so many gamer drive up their electricity bills - sometimes unnecessarily, because in a modern gaming computer electricity can be saved in several places. Suitable hardware components and basic knowledge of the power consumption of gaming PCs are required for this. The latter is conveyed in the following guest post.


The central question remains: Do I have a gaming PC that uses a lot of electricity? Various consumer electronics products sometimes need more and sometimes less electricity. A powerful one Complete - gaming PC will have a particularly significant impact on electricity bills. In the following article we explain in more detail which components are related to the electricity demand and how the electricity costs of the PC are calculated.

Today in particular, climate change and the potential human impact on preventing the earth's temperature from rising further have sparked heated debates. More and more people are considering places to reduce emissions in daily life, especially carbon dioxide emissions. Will be concerned.

At least if we don't switch to renewable energies, electricity consumption is also one of the reasons for CO2 emissions, so many people suppress electricity consumption for the environment. At least they try. Because not everyone can and wants to be largely without electricity.

Power consumption of a gaming PC 

The first question that arises is: which components of the gaming PC are important for the power consumption. In addition to the gaming PC and its integrated components, you should not forget any peripheral devices. Of course, everyone uses a monitor (or LCD TV), and most users have speakers too, even a sophisticated high-fidelity sound system. If you want to know exactly about the power consumption, you also have to integrate the existing printer. This can be related to cost accounting.

A power supply with 500 watts does not always automatically consume 500 watts.

A power supply with 500 watts does not always automatically consume 500 watts.

We will clarify this in our specific discussion of power supplies, as the characteristics of the power supply affect the demands on the power supply. To clear up some users' misunderstanding before and after: For example, if a PC has a rated power supply of 500 watts, the PC will not consume 500 watts of electricity. This information relates to the maximum possible load or the maximum recommended load of the power supply.

The following components are largely responsible for the electricity bill in the PC:

  • Motherboard
  • Random Access Memory (RAM
  • Processor CPU
  • Graphics card GPU
  • Power supply / power supply unit
  • Fan (case, CPU heat sink, graphics card)
  • Drive (SSD, hard drive, optical drive)


There are also extras that can be reflected on the electricity bill. Perhaps a sound card, a WLAN card or a WLAN stick is also built into the gaming PC? Possibly also lighting elements or, in the case of water cooling, the water pump. If you have a lot of additional components in your computer, you can, under certain circumstances, noticeably increase the power consumption.

Calculate electricity costs    

Your electricity provider calculates the annual electricity costs based on the electricity consumption measured in kWh (kilowatt hours) and takes the current electricity price per kWh including a basic fee. Electricity prices are currently between 26 and 29 cents per KWh. Now we calculate the power consumption: operating time in hours (h) times the power output watt (W) divided by 1000 (watt value in kilowatt value).

Here is an example: A gaming PC consumes an average of 400 watts and is switched on for 5 hours. So it consumes 5h times 400 W divided by 1000. This results in 2 kWh, because 5 times 400 is equal to 2.000, divided by 1.000 results in 2.

Processors from AMD and Intel differ significantly in terms of power consumption.

Processors from AMD and Intel differ significantly in terms of power consumption.

Now we know that if you run the gaming PC at around 400 watts for around five hours a day, you will have around 2 kWh of consumption. Two KWh times 29 cents are equal to 0,58 euros per day. Here are more details on how high the Power consumption for a power supply unit in the gaming PC actually is.

Typical performance requirements for gaming PCs

Nowadays there are different system configurations, so it is difficult to give general consumption values. However, if one of the popular CPUs in Intel slot 1151 for a typical modern gaming PC is based on many processor tests published in magazines and online, you can get an idea of ​​how much power the CPU needs in daily use. Different CPUs like the Core i or AMD slot AM4 from Ryzen also have different power consumption. In most cases, an AMD always uses less than an Intel.

You can also assume that a modern computer (e.g. when surfing, watching videos and similar things) consumes around 120 watts of electricity and also consumes 140 to 220 watts with high CPU load (depending on the processor). Since the CPUs switch on in a power-saving mode as soon as they do not require so much load.

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In PC games, the maximum power can be up to 500 watts, depending on the hardware; the graphics card in particular plays a major role here. Graphics card tests show how many watts the PC consumes under gaming load. For example, the Nvidia RTX 2070 requires 170 to 200 watts, depending on the model and cycle. The Nvidia GTX 1660 Ti achieves an output of around 120 to 130 watts. The AMD Radeon RX Vega 64 requires up to 300 watts of power. You will see that the spectrum at full load is around 300 watts (like Ryzen 5 2600 or Core i7-8700K, connected to Nvidia RTX 2070 or GTX 1080) to 500-600 watts for example with a Ryzen 7 2700X and an AMD Radeon Vega 64 it may be possible.

However, if you play complex PC games, around 450-500 watts can always hit the power supply. In addition, the other components such as monitors - or even several monitors, speakers, printer, mouse and keyboard, of course - have their own power requirements that cannot be calculated directly on the computer power supply.


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