The leap from 64-bit to 128-bit takes us to the idea that Microsoft will develop applications that will use multi core processors much substantially.

Robert Morgan, an employee of Microsoft for seven years had ‘accidentally’ posted details of Windows 8 on his Linkedin profile. He described himself as: “Working in high security department for research and development involving strategic planning for medium and long-term projects. Research & Development projects including 128bit architecture compatibility with the Windows 8 kernel and Windows 9 project plan.”

What is the difference between 32-bit and 64-bit?

One of the greatest advantages of using a 64-bit version of Windows is the ability to access physical memory (RAM) that is above the 4-gigabyte (GB) range. This physical memory is not addressable by 32-bit versions of Windows.

For example a 64-bit version of Windows Vista supports from 1 GB of RAM to more than 128 GB of RAM. The ability to address more physical memory lets Windows Vista minimize the time that is required to swap processes in and out of physical memory. Therefore, Windows Vista can manage processes more efficiently. This memory management feature helps improve the overall performance of Windows Vista.

Also it’s important to know when you have need a version of your SO to be on 64-bit. You need a SO to run on 64-bit when you want to increase memory support beyond that of the 4-GB addressable memory space that is available in a 32-bit operating system, or you want to increased program performance for programs that are written to take advantage of a 64-bit operating system, and also to improve the security features of your computer.