Windows 32 bit & 64bit
 

What's the difference?

They seem to be the same price...

I don't know much but PCs are either 32 or 64 bit. 64 are compatible with both, but 32 aren't I believe. I think 64 bits can use either or but its recommended they do 64 bit.

It depends on your processor really. A 32 bit processor uses a 32 bit address bus which means it can only really communicate effectively with 4 GB of RAM. 32 bit has been used for many years, but now with greater demands, 64 bit systems have come out. Your OS, if 64 bit can fully utilize your 64 bit processor's power. I think a 32 bit OS should work on any system though. If your processor is an Intel, I think anything below Core i3 is a 32 bit and anything above is a 64 bit. Core i3 itself though could be either, you'll have to check.

Oh cool thanks Vasu. I think I'll be getting a i7 so that means I should be able to get a 64 bit without much trouble..

mine is 64bitttt