可以參考 http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx
如果要知道 Windows 7、Windows 8、Windows Server 2008 等版本，它支援記憶體到多大，M$ 有資訊可以查
| 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 |
| 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 |
| 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 |
| 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
|
| 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 |
| 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
|
| 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 |
| 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
|
| 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 |
| 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 |
| Version | 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 |
| 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 |
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