Windows 2008 R2 Edition Comparison by Technical Specification

KEY:

= Not Available

= Available

Specification	Web	Standard	Enterprise	Datacenter	Itanium	Foundation	HPC
Cross-File Replication (DFS-R)
Failover Cluster Nodes (Nodes)			16	16	8
Fault Tolerant Memory Sync
Hot Add Memory
Hot Add Processors
Hot Replace Memory
Hot Replace Processors
IA64 RAM					2 TB
IA64 Sockets					64
Network Access Connections (IAS)		50	Unlimited	Unlimited	2	10
Network Access Connections (RRAS)		250	Unlimited	Unlimited		50	250
Remote Desktop Admin Connections	2	2	2	2	2	2	2
Remote Desktop Services Gateway		250	Unlimited	Unlimited		50
Virtual Image Use Rights	Guest	Host + 1 VM	Host + 4 VM	Unlimited	Unlimited		Host + 1 VM
X64 RAM	32 GB	32 GB	2 TB	2 TB		8 GB	128 GB
X64 Sockets	4	4	8	64		1	4