What is a 64-bit processor?

Features:
At present, the 64-bit processor is the latest mobile phone processor technology, which means that the width of the general-purpose register inside the CPU is 64 bits, and it has a 64-bit wide data bus, which can run twice the data of a 32-bit processor at a time. Reduce memory read and write operations and improve computing speed.

Since major Android commercial software is currently built on 32-bit code, not 64-bit code, it cannot access the larger 64-bit address space, or the wider 64-bit registers and data on 64-bit processors Advantages of the path.

Using a 64-bit processor provides a better performance space for using a 64-bit Android system (Android 5.0 or MIUI system based on Android 5.0) in the future.

Additional tips:

Compared with 32-bit applications, 64-bit applications can make better use of the computing processing power of the CPU, that is, the advantages of a larger 64-bit address space on a 64-bit processor, or a wider 64-bit register and data path "; At present, the Snapdragon 8 and Dimensity 9000 processors using the latest Arm architecture, their X2\A510 (large core and small core) are not compatible to run 32-bit programs, so products equipped with these processors are running 32-bit programs. High power consumption, freezes, and other compatibility issues may occur.

For example:

A 64-bit processor is equivalent to a freighter that can transport 64 tons of goods at a time, but can only carry one container per transport; a 32-bit application is equivalent to a container with a capacity of 32 tons, and a 64-bit application is equivalent to a container with a capacity of 64 tons.
The same 128 tons of cargo needs to be transported, only two transports in a 64-ton container, and four transports in a 32-ton container. The full strength of the freighter cannot be exerted.

At present, most processors use multi-core architecture, which is equivalent to a caravan of freighters of various sizes. At present, the latest Snapdragon 8 and Dimensity 9000 processors, the fastest flagship freighter (X2 ultra-large core), and the economical freighter with the lowest fuel consumption (A510) no longer support 32-ton containers. Therefore, when transporting a 32-ton container, it is neither possible to use the speed advantage of the flagship freighter to make the urgently-needed goods arrive faster, nor to use the economical freighter with lower energy consumption to reduce the cost of the goods that are not in a hurry. The number of freighters has also decreased, resulting in "higher fuel consumption (more power consumption and hotter on mobile phones) and poor speed (stuttering on mobile phones, slow running speed)"