How much memory does 32-bit Windows support?

1. First of all, the current CPU basically supports 64-bit, 32-bit and 64-bit systems can be installed

2. Secondly, the 64-bit Windows system supports large memory (larger than 4 GB). There is no question about the specific number of Windows systems. Each system is different and has not been tested one by one.

3. About how much memory can be supported by 32-bit Windows systems, after repeated installation experiments over the past few days (8 GB memory is installed), there are roughly the following conclusions:

Normal version

(1) Windows XP 32-bit display only supports about 3 GB memory, or less (some occupy the integrated graphics card or other chips)

(2) Windows 7 32-bit display only supports about 3 GB memory, or less (some occupy the integrated graphics card or other chips)

(3) Windows 8 32-bit not tested, to be supplemented

Server version

(1) Windows 2003 32-bit Enterprise Edition is not tested, to be supplemented

(2) Windows 2008 32-bit SP2 Enterprise Edition, supporting 8 GB memory; Windows 2008 32-bit sp2 datacenter edition, displaying only 4 GB memory

(3) Windows 2008 R2 only supports 64-bit versions.

(4) Windows 2012 only supports 64-bit versions.

 

Based on the above test results, we can see that:

(1) Windows 32-bit edition limits memory to less than 4 GB

(2) server Windows Server 32-bit edition supports memory larger than 4 GB (but my test shows Windows 2008 32bit sp2 datacenter only shows 4 GB of memory, which is strange)

(2) A 32-bit system certainly supports memory larger than 4 GB. It has nothing to do with the so-called 32-power limit of 2 and is only related to Microsoft's limit.

 

In addition, there are several technologiesArticleThis article describes the principles from a technical perspective for your reference:

Http://wenku.baidu.com/view/ef5f76c7bb4cf7ec4afed075.html

Http://blog.csdn.net/harryxlb/article/details/7407439