Do you need RAM to run a 64 bit operating system?

To install a 64-bit version of Windows, you need a CPU that's capable of running a 64-bit version of Windows. The benefits of using a 64-bit operating system are most apparent when you have a large amount of random access memory (RAM) installed on your computer, typically 4 GB of RAM or more.

What kind of OS do I need for 4GB of RAM?

To fully use your 4GB, you want a 64-bit OS. A 32-bit OS can map 4GB, but much of that last GB will be “reserved” addresses, used for things like video RAM… Leaving you with access to only about 3GB of usable RAM. Go 64-bit.

How much RAM do you need for Windows 10?

For Windows 10, 4GB Ram is NOT good enough. Minimum 8GB Ram is needed for day to day task. See, 1.2–1.5GB Ram will be left for use and Rest of the Memory will be eaten by your system. I am having 8GB of Ram and just 5.4GB Ram is free for use. Google chrome uses lots of Ram.

Which is more RAM 32bit or 64bit?

With a 64bits OS you can use 192MB more RAM, but apps and the OS itself starts using more memory than their 32bit counterparts. This happens because pointers are now 8 bits in length instead of 4 bits and the simplest app uses thousands of them. That’s the main the reason I try to avoid 4GB computers and I recommend 6GB at least.