Re: what IA-32, IA-64 and intel 64 are
- From: "John John (MVP)" <audetweld@xxxxxxxxxxx>
- Date: Sat, 16 Aug 2008 11:27:53 -0300
Mike wrote:
On Jul 31, 9:49 am, "John John (MVP)" <audetw...@xxxxxxxxxxx> wrote:
Mike wrote:
On Jul 30, 3:02 pm, Rey Santos <ReySan...@xxxxxxxxxxxxxxxxxxxxxxxxx>
wrote:
How to determine whether your computer is running a 32-bit version or a
64-bit version of the Windows operating systemhttp://support.microsoft.com/kb/827218
I surf at wikipedia, which shows IA is about intel architecture.
Does 32-bit version of Windows OS only run on IA-32 CPU based PC?
No, it can be also be installed on the 64-bit Intel EMT64 chips and on
the AMD64 chips. The 64-bit Windows versions can only be installed on
64-bit chips, they cannot be installed on the IA-32 (32-bit x86).
Note that there is also an Intel IA-64, the pure 64-bit Itanium
processor, in the Microsoft stable of products only specially designed
Server versions can be installed on the IA-64.
The main difference in the 32/64-bit chip architecture and the Windows
versions is in the amount of memory that the platforms support:
Memory Limits for Windows Releaseshttp://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx
Microsoft Computing on Itaniumhttp://www.microsoft.com/servers/64bit/itanium/overview.mspx
John
I still have some questions:
1. What for choosing different architecture of CPU?
Does 64-bit cpu run faster, more accurate or other benifits?
In this day and age I don't think that it makes much sense buying a 32-bit CPU. There isn't much of a cost advantage so you may as well get a 64-bit ready computer, as mentioned in other posts you can still install and use 32-bit operating systems on these 64-bit systems, if you decide later on that a 64-bit OS would be better for you at least you will have a 64-bit ready computer, you won't have to buy another machine!
2. What for choosing different versions of OS?
Does 64-bit Window run faster, more accurate or other benifits?
It all depends on what kind of software you want to run on your computer and on whether or not the software is written for a 64-bit environment, if the software is well designed then yes it will probably run faster on a 64-bit machine, if all your software is 32-bit then it won't run any faster on 64-bits. 64-bits is no more "accurate" than 32-bits, they're computers, both are equally accurate, processors make few mistakes. The last time I ever heard of processor accuracy was quite a few years ago when Intel admitted that there was a small error in one of their processors. The error was so tiny that about 99.999% of computer users would have never even been affected by the error but the way Intel handled the problem they annoyed 99.999% of their customers and the episode turned out to be quite a debacle and a near marketing fiasco for Intel! There are drawbacks to 64-bit systems with regards to hardware drivers, not all hardware has 64-bit drivers available, but that is improving all the time.
You may want to ask for more information in the 64-bit newsgroup:
news://msnews.microsoft.com/microsoft.public.windows.64bit.general
John
.
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