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Editor to share with you what is the difference between 32-bit and 64-bit in cad, I believe most people do not know much about it, so share this article for your reference. I hope you will gain a lot after reading this article. Let's learn about it together.

Differences: 1, 64-bit cad can use more virtual memory, while 32-bit cad can only allocate up to 2 gigabytes of memory; 2, processors support different operations, 64-bit maximum addressing space is 2 to the 64th power, the theoretical value directly reaches 16TB, while 32-bit maximum addressing space is 2 to the 32th power, 4GB.

With the advent of 64-bit CPU and operating systems, AUTOCAD installers are also divided into 32-bit and 64-bit versions. what's the difference between 32-bit and 64-bit versions? How should I choose? The following article is going to introduce you.

The difference between 32-bit cad and 64-bit

1. Different amount of memory

64-bit cad can use more virtual memory, while 32-bit cad can only allocate up to 2 gigabytes of memory. If you open a drawing that requires more than 1.5 gigabytes of memory, 32-bit cad will exit because of insufficient memory.

2. Different systems are used.

Only 32-bit CAD can be installed if the operating system is 32-bit, and 64-bit cad can be installed if the operating system is 64-bit.

3. Processors support different operations.

The 64-bit maximum addressing space is 2 to the 64th power, and the theoretical value is directly up to 16TB, while the 32-bit maximum addressing space is 2 to the 32th power, which is 4GB. In other words, the processor of a 32-bit system supports up to 4G memory, while a 64-bit system supports up to 100 million bits of memory.

How should I choose?

The choice of 32-bit or 64-bit CAD first depends on your operating system, whether your operating system is 32-bit or 64-bit. If your operating system is 32-bit, you can only install 32-bit CAD. If your operating system is 64-bit, you can choose to install 32-bit and 64-bit CAD.

32-bit and 64-bit upgrades first started with CPU. Just looking at the numbers, 64 is twice as large as 32, so what are the advantages of 64-bit processors in applications? Overall, 64-bit computing has the following main advantages:

1. A wider range of integer operations can be performed.

A 32-bit integer can represent the 32 power of 2, which is the value of 4GB, while a 64-bit integer, that is, 2 to the 64 power of 18 million TB, can be considered infinite. The application of 64-bit integer data can greatly improve the computing performance on 64-bit hardware, and can process more data in the same cycle, thus greatly reducing the computing time and making some super-large number operations better solved. this makes meteorological simulation, environmental simulation and other large-scale scientific operations benefit a lot.

2. More memory can be supported

Another advantage is that 64-bit processors can support 64-bit memory addressing. By the same principle, memory addresses are also integers. Since ALU (arithmetic logic arithmetic unit) and registers can store more integers, they can also hold more memory addresses, breaking the limit of 4GB under 32 bits. In fact, how much physical and virtual memory addressing is required for 64-bit processors depends entirely on the needs of different processors.

To sum up, if you have more than 4G of memory, it is recommended to install a 64-bit operating system, otherwise your excess memory will be wasted and you won't need it at all.

Back to CAD, 32-bit CAD software can allocate up to 2 gigabytes of memory. If you open a drawing that requires more than 1.5 gigabytes of memory, CAD will usually quit because of insufficient memory. The 64-bit CAD software can make full use of the physical memory of the operating system and can use more virtual memory. If you install a 64-bit operating system, it is recommended to install 64-bit CAD, and if you often have to draw and edit some large topographic maps, city plans, and mold maps, there is no doubt that you should install 64-bit operating system and 64-bit CAD, which can give full play to the performance of the hardware, improve operation speed, and avoid the phenomenon of CAD not responding or exiting due to insufficient memory.

How to check whether the computer system is 32-bit or 64-bit?

1. Right-click the "computer"-"property"

2. Open the properties dialog box, as shown in the figure.

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