Hello, guys. Today, in this article, I am going to give you the detailed information about CPU Undervolting.

Before, I proceed furthermore, Let me explain what happen in the CPU when you try to do some heavy tasks like gaming, video editing, stress test, and many more that require intensive computational power.

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What happen to CPU during heavy tasks?

When you try to perform any heavy task on the CPU, it gets hot. Not just hot, but also its efficiency gets reduced. The efficiency means its clock speed. And, at the same time, the power consumption will increase considerably than idle.

In addition to that, If proper ventilation is implemented there, then it the CPU performance will be bit further reduced than average. At the same time, the laptop will heat up much more than average which will led to damage of the CPU or certain components.

In addition to that, during gaming or extreme CPU intensive tasks, keys of the keyboard start feeling uncomfortable to keys. And, sometimes, the touchpad and palm rest also feel little warmer than usual. Although I have noticed such scenario in very rare case.

Hence, in turn, such things will reduce the life of processor and other internals of the laptop.

Video editing, Gaming, and other processor intensive task like Small-scale machine learning are nowadays become common. Today may not, but tomorrow you might be in the contact of any of the tasks that I have mentioned earlier.

So, to overcome the heating, performance, and power consumption issues, we are doing CPU undervolting. Next, I will tell you what is it.

What is the CPU Undervolting?

Guess, what is CPU undervolting?

The answer is in the name itself. It's Undervolting. Means?

It simple means to cut or reduce the power that's supplied to the CPU.

If you supply the less power, it will consume less than usual and, in turn, it won't heat up much than normal.

As a result, it will give you more clock speed than average that wasn't possible for you to get without undervolting.

Is there anything remains to discuss in the concept of CPU undervolting?

No, Except the method that we use at Thanalysis to perform.

How We are doing it?

In the beginning, we had two apps to do CPU undervolting. They are as follows.

  • Throttlestop
  • XTU by Intel

However, Throttlestop don't give us the advance options to do so. But, Intet's XTU does give. Hence, we uses Intel's XTU to do CPU undervoting.

As a result, it's not possible for me to undervolt (UV) the AMD's CPU. You won't get the result of AMD CPU UV in any stress test.

To know the entire process of CPU UV, Insopra's article is best to read.

Is CPU UV is noticeably beneficial in real world?

The answer is this question cannot be given without mentioned the practical results. See some of the below images where I have performed stress test to measure the CPU clock speed, TDP, temperature, and Cinebench R20 score.

Lenovo Legion 7i CPU UV Results

Read the full review of Lenovo Legion 7i here.

Lenovo Legion 7i Cinebench Score
Lenevo Legion 7i Cinebench R20 score.
Lenovo Legion 7i Average Clock speeds during Stress Test.
Lenovo Legion 7i Average Clock speeds during Stress Test.
Lenovo Legion 7i Average Power Consumption during stress test.
Lenovo Legion 7i Average Power Consumption during stress test.
Lenovo Legion 7i Average CPU and GPU temperature during stress test.
Lenovo Legion 7i Average CPU and GPU temperature during stress test.

Read the results of the other laptops that I have reviewed here.

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