| Specification |
Web |
Standard |
Enterprise |
Datacenter |
Itanium |
| X86 Sockets |
X
4 |
X
4 |
X
8 |
X
32 |
O |
 |
| X64 Sockets |
X
4 |
X
4 |
X
8 |
X
64 |
O |
|
| IA64 Sockets |
O |
O |
O |
O |
X
64 |
|
| X86 RAM |
X
4 GB |
X
4 GB |
X
64 GB |
X
64 GB |
O |
|
| X64 RAM |
X
32 GB |
X
32 GB |
X
2 TB |
X
2TB |
O |
|
| IA64 RAM |
O |
O |
O |
O |
X
2TB |
|
| Hot Add Memory |
O |
O |
X |
X |
X |
|
| Hot Replace Memory |
O |
O |
O |
X |
X |
|
| Hot Add Processors |
O |
O |
O |
X |
X |
|
| Hot Replace Processors |
O |
O |
O |
X |
X |
|
| Failover Cluster Nodes (Nodes) |
O |
O |
X
16 |
X
16 |
X
8 |
|
| Fault Tolerant Memory Sync |
O |
O |
X |
X |
X |
|
| Cross-File Replication (DFS-R) |
O |
O |
X |
X |
X |
|
| Network Access Connections (RRAS) |
O |
X
250 |
X
Unlimited |
X
Unlimited |
X
2 |
|
| Network Access Connections (IAS) |
O |
X
50 |
X
Unlimited |
X
Unlimited |
O |
|
| Terminal Services Gateway |
O |
X
250 |
X
Unlimited |
X
Unlimited |
O |
|
| Virtual Image Use Rights |
O |
X
1 |
X
4 |
X
Unlimited |
X
Unlimited |
|
| Remote Desktop Admin Connections |
X
2 |
X
2 |
X
2 |
X
2 |
X
2 |
