Desktop or Laptop: Which is more energy efficient?
There are many factors to be considered when you buy a Laptop or a Desktop such as price, portability, space and upgrade. Many believe that you need a desktop for home use, but as years passed by, laptops have become quite advanced to replicate desktop. But, which is more energy efficient? For smart consumer, energy consumption of a desktop or laptop is a significant factor that they look at. To answer your question “Which is more energy efficient: Desktop or Laptop?” let’s differentiate the two in terms of power consumption.
- Desktop computers use an average of 60 to 200 watts of electricity in order to run normally.
- It needs a permanent power supply which means you are continuously consuming electricity regardless if it’s in sleep mode or standby mode.
- You need to install a UPS (Uninterruptible Power Supply) in order to prevent system crashes during the power outage.
- Uninterruptible Power Supply or UPS can eat a significant amount of electricity as a result of more energy consumption.
- The screen type of your Desktop is also a factor in your electricity usage. A CRT (Cathode Ray Tube) screen consumes more energy than LCD (Liquid Crystal Display) screens. LCD screens can save up to 75% electricity compared to a CRT screen.
- One simple reason why Laptop is more energy efficient than Desktop is it can run for a long time using battery power (without connecting the power plug).
- Laptop computers consume 80% less electricity than Desktop computers. It typically consumes 20 to 50 watts which can be decreased if you use power saver modes. Power Saver Mode includes a dimmer screen and other measures that help save power on your Laptop.
- Laptops contain smaller PSU or Power Supply Unit, which runs between 30 to 90 watts.
- 70% to 80% of power consumption in a Laptop is by PSU, and the rest of the components consume very less energy.
- Using a Laptop can save about 50% or more on what you pay with your energy company compared to a desktop computer. In addition to this, laptops are 20% more energy efficient when running on AC adapter power over battery power.
How to save energy with your existing Desktop Computer?
- Set your desktop computer to “Sleep Mode” if you’re not going to use it for more than a few minutes. Yes, it will still consume energy, but the energy consumption is less compared to your desktop inactive state.
- Do not choose the best quality and expensive video cards unless you work in graphics or video industry since video cards are one of the most energy consuming components of a desktop.
- Avoid using screensavers. They don’t have any function that is useful for your computer and will help you to save energy.
- Try to avoid turning your desktop computer on and off repeatedly if it’s unnecessary. Starting up is one of the biggest energy draws for a desktop computer.
- Do not leave your desktop computer on throughout the night this will save you some bucks.
Even when you are using a Laptop, do not forget that the rates and charges of your energy plan are one of the factors why you’re paying a lot.