Your question is inaccurate because mobile phones do not use CPUs. What mobile phones use is called SOC. SOC contains a lot of things. Its chip includes a processing core (equivalent to a CPU), a graphics core (equivalent to a graphics card), and some modules that support 4G, WiFI and other functions. Therefore, it is generally said that mobile phones can support 4G, dual The frequency of WiFi and everything depends on the chip of the mobile phone.
From the perspective of system architecture, computer CPUs use the x86 architecture, and mobile phones use the ARM architecture. They are incompatible with each other. ARM is a very special architecture because its inventor, the British company Acorn, only developed the ARM architecture and ARM core. As for the finished chips, they were developed by other companies, and they only charge patent licensing fees. It is precisely because of this that ARM can derive a wide range of chips that are used in various fields, such as the most commonly used mobile phone chips (Qualcomm, MediaTek, Huawei HiSilicon, etc.).
And due to the emergence of tablet computers, the boundary between laptops and mobile phones has begun to gradually fade, because a tablet with a keyboard cover is equivalent to a laptop and can also realize various functions of a laptop.
Of course, there are many exceptions. For example, ASUS once launched a mobile phone using an x86 chip. Many ARM development boards use ARM chips but run desktop versions of Linux systems (such as tree (Berry Pi), plug in the keyboard and mouse and connect it to the monitor, it is equivalent to a small computer. In addition, Microsoft has recently been committed to the ARM platform and launched the Win10 system based on the ARM platform, which can run ordinary x86 programs.
So, if you really want to answer this question, the answer is very vague. However, if you can see this, I think you already have your own answer in your heart.