System x32 or x64, which is better?

In the last article we discussed the main differences between the two operating system architectures - x32 and x64. Despite the obvious advantages of each solution, there are still debates among users about which one to choose. Some prefer x64, others x32. Returning to the previous topic, we must say that the choice depends on the amount of RAM.

Which architecture to choose

If you have a computer with RAM for 4 GB, you can use 32 bit, if more, you need to use 64 bit. If you use x32 with more RAM, the system will not see all the memory. There are PAE, extensions that allow the chip to see more than 4 GB. But you won't get the performance you can get directly without any "cheating".

Why you should not use 64-bit architecture when RAM is less than 4 GB. The point is that the size of the chip's registers is bigger, so you automatically get more of everything that is stored in RAM. Thus, if you decide to put a x64 system on a PC with RAM 4 GB or less, the RAM will be not enough. You won't be able to feel the performance gain, because part of RAM will go to disk in the swap partition. Disk speed is very different from RAM speed.

If you have a PC with exactly 4 GB of memory, it is better to refuse using x64 OS. This amount of memory is not enough for a modern computer in the current realities. If you put such a system, you will only reduce this volume. In extreme case you can put a system with x64 architecture, if it is necessary, and then use PAE technology. It will be justified.

Conclusion

When you have 6 GB or more RAM on your PC, you should not use PAE, we recommend you to install a normal and full-fledged 64-bit architecture. There will be enough memory and the processor is designed to work with such a system.