Windows Server 2008 R2 Editions Overview

Windows Server 2008 R2 is currently available in seven editions:

• Windows Server 2008 R2 Web
• Windows Server 2008 R2 Standard
• Windows Server 2008 R2 Enterprise
• Windows Server 2008 R2 Datacenter
• Windows Server 2008 R2 Itanium
• Windows Server 2008 R2 Foundation
• Windows Server 2008 R2 HPC

Differences in the Editions based on Server Roles

Role	Web	Standard	Enterprise	Datacenter	Itanium	Foundation	HPC
Active Directory Certificate services		X 1	X	X		X 1	X 1
Active Directory Domain Services		X	X	X		X	X
Active Directory Federation Services			X	X
Active Directory Lightweight Directory Services		X	X	X		X
Active Directory Rights Management Services		X	X	X		X
Application Server		X	X	X	X	X
DHCP Server		X	X	X		X	X
DNS Server	X	X	X	X		X	X
Fax Server		X	X	X		X
File Services		X 2	X	X		x 2	X 2
Hyper-V		X	X	X			X
Network Policy and Access Services		X 3	X	X		X 5	X 3
Print and Document Services		X	X	X		X
Remote Desktop Services		X 4	X	X		X 6	X 4
Web Services(IIS)	X	X	X	X	x	X	X
Windows Deployment Services		X	X	X		X	X
Windows Server Update Services(WSUS)		X	X	X		X	X

1 Limited to creating Certificate Authorities – no other ADCS features (NDES, Online Responder Service). See ADCS role documentation on TechNet for more information.

2 Limited to 1 standalone DFS root.

3 Limited to 250 RRAS connections, 50 IAS connections and 2 IAS Server Groups.

4 Limited to 250 Remote Desktop Services Gateway connections.

5 Limited to 50 RRAS connections, 10 IAS connections.

6 Limited to 50 Remote Desktop Services connections.

Differences in the Editions based on Technical Specifications

Specification	Web	Standard	Enterprise	Datacenter	Itanium	Foundation	HPC
Cross-File Replication(DFS-R)			X	X	X
Failover Cluster Nodes(Nodes)			16	16	8
Fault Tolerant Memory Sync			X	X	X
Hot Add Memory			X	X	X
Hot Add Processors				X	X
Hot Replace Memory				X	X
Hot replace Processors				X	X
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 Images Use Rights	Guest	Host + 1 VM	Host + 4 VM	Unlimited	Unlimited		Host + 1 VM
Max RAM	32 GB	32GB	2TB	2TB	2TB	8GB	128GB
Max CPU Sockets	4	4	8	64	64	1	4

Additional Information

• http://www.microsoft.com/windowsserver2008/en/us/r2-compare-roles.aspx
• http://www.microsoft.com/windowsserver2008/en/us/r2-compare-specs.aspx

Sources

• http://www.microsoft.com/windowsserver2008/en/us/r2-compare-roles.aspx
• http://www.microsoft.com/windowsserver2008/en/us/r2-compare-specs.aspx