在继续整理这份笔记之前，我们先列一下Windows各发行版所支持物理内存的最大限制：
1. 内存和地址空间限制
| Memory type | Limit in on X86 | Limit in 64-bit Windows |
|---|---|---|
32位进程用户态的虚拟地址空间 | 2 GB Up to 3 GB with IMAGE_FILE_LARGE_ADDRESS_AWARE and 4GT | 2 GB withIMAGE_FILE_LARGE_ADDRESS_AWAREcleared (default) 4 GB withIMAGE_FILE_LARGE_ADDRESS_AWAREset |
64位进用户态的虚拟地址空 | N/A | With IMAGE_FILE_LARGE_ADDRESS_AWAREset (default): 2 GB withIMAGE_FILE_LARGE_ADDRESS_AWAREcleared |
核心态虚拟地址空间 | 2 GB From 1 GB to a maximum of 2 GB with 4GT | 8 TB |
页池 | Limited by available kernel-mode virtual address space or the PagedPoolLimitregistry key value. | 128 GB |
非页池 | Limited by available kernel-mode virtual address space, the NonPagedPoolLimitregistry key value, or physical memory. | 75% of RAM up to a maximum of 128 GB |
System cache virtual address space (physical size limited only by physical memory) | Limited by available kernel-mode virtual address space or the SystemCacheLimitregistry key value. | Always 1 TB regardless of physical RAM |
2. 物理内存的限制
2.1 Windows 8
| Version | Limit on X86 | Limit on X64 |
|---|---|---|
| Windows 8 Enterprise | 4 GB | 512 GB |
| Windows 8 Professional | 4 GB | 512 GB |
| Windows 8 | 4 GB | 128 GB |
2.2 Windows Server 2012
| Version | Limit on X64 |
|---|---|
| Windows Server 2012 Datacenter | 4 TB |
| Windows Server 2012 Standard | 4 TB |
| Windows Server 2012 Essentials | 64 GB |
| Windows Server 2012 Foundation | 32 GB |
| Windows Storage Server 2012 Workgroup | 32 GB |
| Windows Storage Server 2012 Standard | 4 TB |
| Hyper-V Server 2012 | 4 TB |
2.3 Windows 7:
| Version | Limit on X86 | Limit on X64 |
|---|---|---|
| Windows 7 Ultimate | 4 GB | 192 GB |
| Windows 7 Enterprise | 4 GB | 192 GB |
| Windows 7 Professional | 4 GB | 192 GB |
| Windows 7 Home Premium | 4 GB | 16 GB |
| Windows 7 Home Basic | 4 GB | 8 GB |
| Windows 7 Starter | 2 GB | N/A |
2.4 Windows Server 2008 R2
| Version | Limit on X64 | Limit on IA64 |
|---|---|---|
| Windows Server 2008 R2 Datacenter | 2 TB | |
| Windows Server 2008 R2 Enterprise | 2 TB | |
| Windows Server 2008 R2 for Itanium-Based Systems | 2 TB | |
| Windows Server 2008 R2 Foundation | 8 GB | |
| Windows Server 2008 R2 Standard | 32 GB | |
| Windows HPC Server 2008 R2 | 128 GB | |
| Windows Web Server 2008 R2 | 32 GB |
2.5 Windows Server 2008
| Version | Limit on X86 | Limit on X64 | Limit on IA64 |
|---|---|---|---|
| Windows Server 2008 Datacenter | 64 GB | 1 TB | |
| Windows Server 2008 Enterprise | 64 GB | 1 TB | |
| Windows Server 2008 HPC Edition | 128 GB | ||
| Windows Server 2008 Standard | 4 GB | 32 GB | |
| Windows Server 2008 for Itanium-Based Systems | 2 TB | ||
| Windows Small Business Server 2008 | 4 GB | 32 GB | |
| Windows Web Server 2008 | 4 GB | 32 GB |
2.6 Windows Vista
| Version | Limit on X86 | Limit on X64 |
|---|---|---|
| Windows Vista Ultimate | 4 GB | 128 GB |
| Windows Vista Enterprise | 4 GB | 128 GB |
| Windows Vista Business | 4 GB | 128 GB |
| Windows Vista Home Premium | 4 GB | 16 GB |
| Windows Vista Home Basic | 4 GB | 8 GB |
| Windows Vista Starter | 1 GB |
2.7 Windows Home Server
Windows Home Server 只有32位版本，最大物理内存4G
2.8 Windows Server 2003 R2
| Version | Limit on X86 | Limit on X64 |
|---|---|---|
Windows Server 2003 R2 Datacenter Edition | 64 GB (16 GB with 4GT) | 1 TB |
Windows Server 2003 R2 Enterprise Edition | 64 GB (16 GB with 4GT) | 1 TB |
Windows Server 2003 R2 Standard Edition | 4 GB | 32 GB |
2.9 Windows Server 2003 with Service Pack 2 (SP2)
| Version | Limit on X86 | Limit on X64 | Limit on IA64 |
|---|---|---|---|
Windows Server 2003 with Service Pack 2 (SP2), Datacenter Edition | 64 GB (16 GB with 4GT) | 1 TB | 2 TB |
Windows Server 2003 with Service Pack 2 (SP2), Enterprise Edition | 64 GB (16 GB with 4GT) | 1 TB | 2 TB |
Windows Server 2003 with Service Pack 2 (SP2), Standard Edition | 4 GB | 32 GB |
2.10 Windows Server 2003 with Service Pack 1 (SP1)
| Version | Limit on X86 | Limit on X64 | Limit on IA64 |
|---|---|---|---|
Windows Server 2003 with Service Pack 1 (SP1), Datacenter Edition | 64 GB (16 GB with 4GT) | X64 1 TB | 1 TB |
Windows Server 2003 with Service Pack 1 (SP1), Enterprise Edition | 64 GB (16 GB with 4GT) | X64 1 TB | 1 TB |
Windows Server 2003 with Service Pack 1 (SP1), Standard Edition | 4 GB | 32 GB |
2.11 Windows Server 2003
| Version | Limit on X86 | Limit on IA64 |
|---|---|---|
Windows Server 2003, Datacenter Edition | 64 GB (16 GB with 4GT) | 512 GB |
Windows Server 2003, Enterprise Edition | 64 GB (16 GB with 4GT) | 512 GB |
Windows Server 2003, Standard Edition | 4 GB | |
Windows Server 2003, Web Edition | 2 GB | |
Windows Small Business Server 2003 | 4 GB | |
Windows Compute Cluster Server 2003 | 32 GB | |
Windows Storage Server 2003, Enterprise Edition | 8 GB | |
Windows Storage Server 2003 | 4 GB |
2.12 Windows XP
| ersion | Limit on X86 | Limit on X64 | Limit on IA64 |
|---|---|---|---|
| Windows XP | 4 GB | 128 GB | 128 GB (not supported) |
| Windows XP Starter Edition | 512 MB | N/A | N/A |
2.13 Windows Embedded
| Version | Limit on X86 | Limit on X64 |
|---|---|---|
Windows XP Embedded | 4 GB | |
Windows Embedded Standard 2009 | 4 GB | |
Windows Embedded Standard 7 | 4 GB | 192 GB |