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Windows 7: 32-bit or 64-bit?

13 Feb 2014   #21
Lady Fitzgerald

Win 7 Ultimate 64 bit
 
 

I don't know why the OP even bothered with this thread since it appears his mind was already made up and didn't care what anyone had to say.


My System SpecsSystem Spec
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13 Feb 2014   #22
LMiller7

Windows 7 Pro 64 bit
 
 

The reasons for designing the 64 bit OS was never about the ability to access more RAM. It was all about providing a vastly larger virtual address space to the system and to native 64 bit applications. Compatible 32 bit applications receive a small benefit. Most of the advantages of a 64 bit OS stem from that.

If all that was wanted was more RAM access that could have been provided at much less effort in a 32 bit OS. Windows 2000 Data Center edition was able to access as much as 32 GB RAM some 14 years ago. This was made possible by using the PAE CPU feature and a special kernel. PAE is often thought of as some kind of ugly hack but that is not the case at all. It is just a small extension to the normal methods of RAM access and is in fact simpler than that used in a 64 bit OS for all RAM accesses, even on systems with less than 4 GB RAM.

The 32 in a 32 bit OS refers to the size of the virtual address space as seem by applications. This has nothing, and I mean NOTHING, to do with how RAM is accessed. This is very complex and I will not attempt to describe it. The Pentium Pro introduced in 1995 had a 36 bit address bus that could theoretically access as much as 64 GB RAM (if a compatible OS existed and that much RAM could be provided). Most later 32 bit CPUs also have a 36 bit address bus. That is what limits RAM access, not the 32 bits used by applications.

To be sure, a 32 bit application has severe limits on how much RAM it can efficiently use but that comes from the limited virtual address space. That is why 64 bit operating systems were designed. Many systems also used device drivers that behaved very badly with more than 4 GB RAM installed.

If anyone wants to use PAE on a 32 bit client OS such as Windows 7 or Windows 8 you can forget it. The ability to access more than 4 GB RAM is explicitly denied in such systems. This is for specific server operating systems only.
My System SpecsSystem Spec
13 Feb 2014   #23
Britton30
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

Quote   Quote: Originally Posted by Lady Fitzgerald View Post
I don't know why the OP even bothered with this thread since it appears his mind was already made up and didn't care what anyone had to say.
The message in my avatar was ignored.
My System SpecsSystem Spec
.

13 Feb 2014   #24
Lady Fitzgerald

Win 7 Ultimate 64 bit
 
 

Quote   Quote: Originally Posted by Britton30 View Post
Quote   Quote: Originally Posted by Lady Fitzgerald View Post
I don't know why the OP even bothered with this thread since it appears his mind was already made up and didn't care what anyone had to say.
The message in my avatar was ignored.
My System SpecsSystem Spec
14 Feb 2014   #25
Franky

windows 7 32-bit
 
 

Quote   Quote: Originally Posted by Lady Fitzgerald View Post
I don't know why the OP even bothered with this thread since it appears his mind was already made up and didn't care what anyone had to say.
My mind isn't made up but yours is. I asked a simple question and after getting some replies here I figured out that continuing to the discussion is not useful and I try to find the answer from else where so I made this thread solved and I don't know while I thanked all of you and said that the thread is now solved but STILL you go on in posting with an inappropriate writing!
My System SpecsSystem Spec
14 Feb 2014   #26
Lady Fitzgerald

Win 7 Ultimate 64 bit
 
 

Quote   Quote: Originally Posted by Kurdman View Post
Hi to all,

consider this sample machine "ASUS X54H" with these specs:
Intel B970 2.3GHz
RAM: 4GB
RADEON HD 7470M 1GB

I think it's better to install the 32-bit version of Windows 7 on it because:
1- The 64-bit version is for those machines which they have more than 4GB of RAM.
2-Almost for every software we can find the 32-bit version of it but finding the 64-bit of that software sometimes isn't easy.

Am I right?
Quote   Quote: Originally Posted by Kurdman View Post
Quote   Quote: Originally Posted by Lady Fitzgerald View Post
I don't know why the OP even bothered with this thread since it appears his mind was already made up and didn't care what anyone had to say.
My mind isn't made up but yours is. I asked a simple question and after getting some replies here I figured out that continuing to the discussion is not useful and I try to find the answer from else where so I made this thread solved and I don't know while I thanked all of you and said that the thread is now solved but STILL you go on in posting with an inappropriate writing!
I don't know if there is a language barrier or something else but you obviously just don't get it.
My System SpecsSystem Spec
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 32-bit or 64-bit?




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