How Much Power Consumes a Laptop?

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Written By Jam radar

Jam Radar specializes in delivering astute tech reviews, comprehensive guides, and precise troubleshooting solutions.

How Much Power Consumes a Laptop

You shouldn’t worry about a laptop’s power consumption unless you want to calculate your electricity usage or are simply interested in these devices. All you need to know about laptop watt consumption has been covered in this article, along with tips on how to reduce your laptop’s electricity usage.

Factors Affecting Wattage

A laptop’s watt consumption is influenced by a number of elements, including its model, screen size, CPU, GPU, and charging adaptor. More watts are utilised by gaming laptops and workstations for video editing and 3D modelling than by typical consumer laptops.

Computer Type (Gaming Laptops, Professional laptops, and Consumer laptops).

The introduction already alluded to the importance of laptop brand and kind. Ordinary consumer laptops utilise 60W on average per hour; in power-saving mode, they use substantially less.

To find out why, read on. Gaming laptops and professional laptops use more power than typical consumer laptops—some models can even use more than 100W per hour. Get on reading.

Display Size

One of the main determinants of electricity use is screen size. Laptops with screens between 12 and 15 inches often use 60W on average, whereas those with screens above 17 inches typically use 90W. This is the average watt consumption; as previously noted, it varies depending on the type of laptop, the hardware, and other elements.

Another important issue is the type of central processing unit (CPU); laptops with low-quality CPUs use more watts than laptops with high-quality, strong CPUs like Intel i7, Intel i9, or other powerful CPUs made by major businesses.

Processor Unit for Graphics (GPU)

High-quality visuals are displayed by a graphics card, which is also known as a GPU, display adapter, or video card. A strong graphic card is a common component of premium laptops.

Better gaming images are made possible by powerful graphics cards, which are also helpful for professional video editors who render large 4K videos using programmes like Adobe After Effects, Premiere Pro, etc.

A GPU of your choosing may be installed in some laptop models if it is compatible with the motherboard, and other laptops have two built-in graphics cards, which are mostly utilised for 3D work. So, it will use more power if you are installing a strong GPU if the laptop already has one.

Power of the charging adapter

Although different charging adapters for laptops are available, the industry standard for 15-inch and 17-inch models is a 60W and 90W adapter, respectively. The weight of the charging adaptor increases with the laptop’s power.

How Much Power Consumes a Gaming Laptop?

How Much Power Consumes a Gaming Laptop

It depends, is the response to this query. Several firms produce hundreds of different versions of gaming laptops. As we’ve previously noted, gaming laptops consume more power than standard consumer laptops.

Gaming laptops come with a strong GPU and other substantial parts. Due to the components they employ, all of these models differ differently from one another. The Razer Blade 15 needs 230W, which is nearly four times as much power as typical laptops.

How Much Power Consumes an Apple Macbook?

How Much Power Consumes an Apple Macbook?

If you want to know how many watts a laptop uses, you need first check the wattage of the charging adaptor. The watt usage will increase with the weight of the charging adapter.

A cable and 61W USB-C charging converter are included with the 13-inch MacBook Pro. (Models released no earlier than 2016)

A wire and 87W USB-C charging adaptor are included with the 15-inch Macbook Pro. (Models released no earlier than 2016

A cable and 96W USB-C charging converter are included with the 16-inch MacBook Pro. 2019 model year (introduced)

How to Determine the Wattage Consumption of Your Laptop

As previously noted, you may quickly determine the wattage usage by examining the maximum power input of the laptop’s charging adapter. However, to obtain an exact amount, you must either manually compute the total watt consumption of all the components or use an electrical usage monitor.

1.) Determine the total watt consumption of all the components: Although we don’t advise doing it this way because it takes a lot of time, we’ll nonetheless go over how to accomplish it.

You must first identify the components your laptop uses and then search Google for each one’s particular power consumption.

Average GPU, CPU, and brightness usage

The typical CPU usage is 45 to 50 watts: and the average GPU usage is 75 to 80 watts. Moreover, the screen’s brightness uses between 0.5 and 15 watts each hour. It’s difficult to estimate the use of other parts, such as your RAM, HDD/SSD, and keyboard backlight; as a result, this method is incorrect, and you should use an electricity usage monitor in its place.

 Energy usage monitor: You may buy one and connect it into a wall outlet to find out exactly how many watts your laptop uses in real time. You can then use the device to figure out how much electricity you use on a daily basis.

How to Reduce the Power Consumption of Your Laptop

The techniques to conserve electricity are shown below if you believe your laptop is using more power.

Ensure the charger is correctly plugged in.

  • Always use the laptop’s included charging adapter.
  • Be careful not to overcharge your laptop since this might harm the battery and cause it to use more power.
  • Plug in your charger when your laptop’s battery is around 10% full. Keep the laptop from shutting off. A battery that is entirely depleted uses more energy.
  • Investing in a cooling pad is also a smart move because it reduces watt usage and prevents overheating.

Watts Used by Laptop vs. PC

Even the most potent laptops use fewer watts than the majority of PCs. As we’ve already established, the typical power consumption of a laptop is 60W, but that of a PC can reach over 400W due to powerful PSUs. Hence, if you are concerned about your electricity expenditure, laptops are a better option.

How Does Consumption Reduction in Power-Saving Mode Work?

Most battery-saving settings on computers and smartphones are set to either restrict CPU utilisation or lower screen brightness.

Limiting CPU Performance: When activated, the power saving mode will set a performance and use cap on the CPU. While playing games or editing videos, you can observe the effect; nevertheless, normal activities like browsing and watching music or video are unaffected.

Screen Power Saving: In addition to reducing CPU utilisation, power saving mode can also lower screen brightness and framerate.


What wattage is a 15-inch laptop using?

A. The majority of 15-inch laptops use 60W on average.

What wattage is a 17-inch laptop using?

A. The majority of 17-inch laptops use 90W on average.

Is there a connection between watt and overheating?

A. If you use a power supply that is not intended to support powerful components that require hundreds of watts when building your PC. That may lead to overheating problems and perhaps system failure.

But, since laptops are put through a number of tests before being on sale, you don’t need to worry about that.

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