Physical Memory Limits: 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
|
Physical Memory Limits: 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
|
Physical Memory Limits: 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
|
Physical Memory Limits: 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
|
Physical Memory Limits: Windows Home Server
Physical Memory Limits: 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
|
Physical Memory Limits: 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
|
Physical Memory Limits: 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
|
Physical Memory Limits: 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
|
Physical Memory Limits: Windows XP
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
|
Physical Memory Limits: 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
|
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