Do you have a mobile with a Quad HD screen or a Full HD screen? There are users who claim that an HD screen is enough to have a good image quality, in addition to saving battery life. Thus, the question arises, being possible to reduce the image resolution of my mobile, will it improve the performance of the smartphone? Will I save more battery?
Yes, but ...
The real answer to the question is yes. If you have a mobile with a Quad HD resolution or a Full HD resolution, you can get the mobile to obtain a higher performance or a lower power consumption, reducing the screen resolution. You may have gotten lost in reducing the screen resolution. It's possible? If it is. In fact, many times it is spoken of as changing the pixel density of your screen, so that the icons are larger or smaller or more elements fit on your screen. Actually, what you are doing is changing the screen resolution.
Logically, it is easier for a processor and a graphics card to generate graphics for an HD screen than for a Quad HD screen, so they will consume a lower amount of power, and also the performance will be higher, because the processors will be more released . But the truth is that in general it does not make much sense to reduce the screen resolution. Why?
Think of mobiles that have a Quad HD screen. Are any of them mid-range? No, all high-end, with high-end processors. You can improve the performance that the mobile obtains in a benchmark, but the games will work the same or almost as well.
It would only make sense to reduce the screen resolution when we are going to need great autonomy, such as when we go on a trip, but the truth is that this process is not simple for basic users, but is more for advanced users, and it is not question of changing the resolution simply because we are going on a trip.
Thus, although reducing the screen resolution would positively affect the performance of the mobile and energy consumption, the truth is that it is unnecessary, since the balance that exists in mobiles that have Quad HD and Full HD screens and their corresponding processors, cards graphics and RAM memories, makes the process have almost no real consequences for the user.
