Difference betwen 32bit and 64bit

[MILINTICA]

hello friends

I want to know the difference between 32bit and 64bit ? Is a 64bit OS faster ?

[Jaden]

Less numbers of softwares (including drivers) are available for 64-bit Vista. Also, other 64-bit systems runs 32-bit application very well, but thats not the case with 64-bit Vista. It does not support 32-bit drivers at all. And, unlike 32-bit Vista where it just gives a warning for unsigned drivers, 64-bit Vista does not load unsigned drivers. Also, 16-bit application are not supported by 64-bit Vista.

[MACY]

Vista 64-bit include a new secret security feature called Address Space Layout Randmonizer (ASLR) that helps eliminate remote system attacks for the first time on the Windows platform and is not available for 32-bit Vista.

[Ettan]

32-bit Vista support up to 4 GB of RAM where as different 64-bit version of Vista support different size RAM as
Vista Home Basic - 8 GB of RAM
Vista Home Premium - 16 GB
Vista Business, Enterprise, and Ultimate - 128 GB

[GaryK]

The 64-bit versions of Windows can utilize more memory than 32-bit versions of Windows. This helps minimize the time spent swapping processes in and out of memory by storing more of those processes in Random access memory (RAM) rather than on the hard disk. This, in turn, can increase overall program performance. For more details, go to A description of the differences between 32-bit versions of Windows Vista and 64-bit versions of Windows Vista online.