The difference between a 32-bit system and a 64-bit system

CPU the ability to process data one time is a bit or a bit	+ Operating System	- -bit operating system
Address bus	32 Guests	64 guests
Memory address space (memory size)	2 of the 32-time Square bit=4g	2 of the 64-time Square is about 100 million GB
Design Intent	Normal User	Meet customer needs for large memory and floating-point performance in areas such as mechanical design and analysis, three-dimensional animation, video editing and authoring, and scientific computing and high-performance computing applications
Operation Speed is different	32 bits (requires four instructions, extracts 4 bytes of data at a time)	64-bit CPU GPRs (general-purpose registers, universal Register) data width is 64 bits, 64-bit instruction set can run 64-bit data instruction, that is, the processor can extract 64 bits of data at a time (as long as two instructions, fetch 8 bytes of data at a time)

Note: The current CPU not really. bit of that just carried out part of the improvements in the position. The current operating system is designed for the four- bit CPU , adding some commands to the bit.

The difference between a 32-bit system and a 64-bit system