Question:
what is a big deal about the difference of 32bit os v.s 64 bit os for windows xp/vista?
Jonathan P
2009-02-22 10:42:06 UTC
please i want some people to acknowledge me about all this question.
Eight answers:
vulcan
2009-02-22 10:45:21 UTC
The official and straight info about your question
2009-02-22 10:47:06 UTC
The most popular difference is 64 bit windows can have more than 4 gb of ram memory installed 32 bit is limited to 4gb or less.

other differences is that programs will eventually run faster once all programs are written in 64 bit .
2009-02-22 10:47:41 UTC
64-bit processors can address more memory. They also have a more efficient way of handling instructions. That's just a couple of differences.



But you need a chipset that will support 64-bit CPUs as well as an OS that will. Plus, most software is still created as 32-bit, so until we start seeing applications that can take advantage of 64-bit hardware and systems, their use is a moot point.
flakes
2016-10-19 06:53:52 UTC
the two homestead windows XP and homestead windows Vista are accessible in in 32 and sixty 4 bit variations. the essential variations bought in the save are the 32 bit variations on the grounds that's what the final public of desktops ought to have. The 32 bit will additionally artwork on a sixty 4 bit pc, even if the sixty 4 won't artwork on 32 bit desktops. to confirm no be counted in case you have a 32 or sixty 4 bit version of homestead windows, bypass to the administration Panel and click the gadget icon. on the "primary" tab it is going to exhibit the version of homestead windows you're making use of. in case you finding to purchase a replica of homestead windows, verify the e book. If it the sixty 4 bit version it is going to likely be cleared marked as a Window sixty 4. no be counted if it is not categorized as sixty 4 bit, then it is 32 bit.
2009-02-22 11:02:37 UTC
Just simple answer from me -



32-Bit does not provided floating point where as 64-Bit provides a floating point.
k3n12ock
2009-02-22 10:46:11 UTC
32 bit

-more applications for 32 bit OS's

-common

-limited to 3 - 3.5- gigs of ram read



64bit

-ram limited to whatever your motherboard can hold i.e. 8 gigs

-not too many programs, yet

-the future of OS's

64bit > 32 bit
Maureen
2009-02-22 10:46:48 UTC
biggest advantage of 64 is that you can have more RAM. 32 is limited to 4GB
Andy N
2009-02-22 10:46:27 UTC
Please google before you ask a question thats the 1st hit on the google page...

O.o







The main differences between the 32-bit versions of Windows Vista and the 64-bit versions of Windows Vista relate to memory accessibility, memory management, and enhanced security features. The security features that are available in the 64-bit versions of Windows Vista include the following:



* Kernel Patch Protection

* Support for hardware-backed Data Execution Protection (DEP)

* Mandatory driver signing

* Removal of support for 32-bit drivers

* Removal of the 16-bit subsystem



One of the greatest advantages of using a 64-bit version of Windows Vista 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 Vista.



Depending on the version of Windows Vista that is installed, 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.

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Advantages when you install a 64-bit version of Windows Vista



* Increased memory support beyond that of the 4-GB addressable memory space that is available in a 32-bit operating system

* Increased program performance for programs that are written to take advantage of a 64-bit operating system

* Enhanced security features



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What to consider when you install a 64-bit version of Windows Vista



* 64-bit device drivers may not be available for one or more devices in the computer.

* Device drivers must be digitally signed.

* 32-bit device drivers are not supported.

* 32-bit programs may not be fully compatible with a 64-bit operating system.

* It may be difficult to locate programs that are written specifically for a 64-bit operating system.

* Not all hardware devices may be compatible with a 64-bit version of Windows Vista.



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The main differences between the 32-bit versions of Windows Vista and the 64-bit versions of Windows Vista

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Architecture Windows Vista, 32-bit versions Windows Vista, 64-bit versions

System requirements 1-gigahertz (GHz) 32-bit (x86) processor or 64-bit (x64) processor, 512 MB of RAM 1-GHz 64-bit (x64) processor, 1 GB of RAM (4 GB recommended)

Memory access A 32-bit version of Windows Vista can access up to 4 GB of RAM. A 64-bit version of Windows Vista can access from 1 GB of RAM to more than 128 GB of RAM.

Memory access per edition All 32-bit versions of Windows Vista can access up to 4 GB of RAM. Windows Vista Home Basic - 8 GB of RAM

Windows Vista Home Premium - 16 GB of RAM

Windows Vista Business - 128 GB of RAM or more

Windows Vista Enterprise - 128 GB of RAM or more

Windows Vista Ultimate - 128 GB of RAM or more

DEP 32-bit versions of Windows Vista use a software-based version of DEP. 64-bit versions of Windows Vista support hardware-backed DEP.

Kernel Patch Protection (PatchGuard) This feature is not available in 32-bit versions of Windows Vista. This feature is available in 64-bit versions of Windows Vista. Kernel Patch Protection helps prevent a malicious program from updating the Windows Vista kernel. This feature works by helping to prevent a kernel-mode driver from extending or replacing other kernel services. Also, this feature helps prevent third-party programs from updating (patching) any part of the kernel.

Driver signing Unsigned drivers may be used with 32-bit versions of Windows Vista. 64-bit versions of Windows Vista require that all device drivers be digitally signed by the developer.

32-bit driver support 32-bit versions of Windows Vista support 32-bit drivers that are designed for Windows Vista. 64-bit versions of Windows Vista do not support 32-bit device drivers.

16-bit program support 32-bit versions of Windows Vista support 16-bit programs, in part. 64-bit versions of Windows Vista do not support 16-bit programs.


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
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