What are x86 and x64 based processors ?

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People always confuse between both x86 and x64 based processors. In this tutorial you will learn about them, because I am going to clear your confusion.
So basically a processor may be of two types.


1. x86 based processor
2. x64 based processor

x86 based processors

x86 based processor means they have backward compatibility with 8086, 80286, 80386 and 80486 processors, therefore named with x86, pronounced as (EX-86), where 86 is the suffix of above previous processors and also means that all those program who has the capability to run on 8086 to 80486 will also run on x86 based processors.
x86 based processors are also known as 32-bit processors, which is a very common term among people. Its called 32-bit because this processor contains 32-bit registers, integer size, 32-bit wide data bus, address bus and even word size.
A 32-bit processor means it can handle or directly access 232 byte data = 4 Gigabytes or 4GB at a time. So if you use 4 GB of RAM with 32-bit processor and 32-bit operating system, you will feel very good computer performance even with dual core processor.


x64 based processors

x64 based processor means they have address bus, data bus, registers, integer size and even word size with 64-bit architecture. Its named x64 because it describes certain classes and all of its components on 64-bit architecture. X64 based processor also means that you can run 64-bit applications on them even along with 32-bit applications, with no problem. x64 based processors also known as 64-bit processors which is a very common term among people.
A 64-bit or X64 based processor also means that it can handle or directly access 264 bytes = 16 Exabytes of memory address or memory at a time.
x64 based processors are used in supercomputers, workstations and servers because of their massive memory addressing. So if you are going to use x64 based processors with 64-bit operating system and having 4 GB or less RAM then you will feel a degrade performance of your system. If you have more than 4GB of RAM only then use a 64-bit processor to feel a good computer performance. You system performance would be directly proportional to your RAM size.

So we have learned now, What are x86 and x64 based processors ? And what are the differences among them, keep learning from computerflicks. Please leave comments.

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