Windows Server 2008 Comparison Chart

 

  Windows Server 2008 Web Edition Windows Server 2008 Standard Edition Windows Server 2008 Enterprise Edition Windows Server 2008 Datacenter Edition
Supersedes Windows Server 2003 Web Edition Windows Server 2003 R2 Standard Edition

Windows Server 2003 R2 Standard x64 Edition

Windows Server 2003 R2 Enterprise Edition

Windows Server 2003 R2 Enterprise x64 Edition

Windows Server 2003 R2 Datacenter Edition

Windows Server 2003 R2 Datacenter x64 Edition

Hyper-V virtualization technology Not included Included1 Included1 Included1
OS instances permitted per server license One instance (physical or virtual) One physical instance plus one virtual instance2 One physical instance and up to 4 virtual instances2 Unlimited number of OS instances
Maximum server RAM supported3 32-bit: 4GB

64-bit: 32GB

32-bit: 4GB

64-bit: 32GB

32-bit: 64GB

64-bit: 2TB

32-bit: 64GB

64-bit: 2TB

Maximum number of CPUs 4 4 8 64
Hot swap RAM and CPUs No No No4 Yes
Cluster Service (failover) No No Yes, up to 16 nodes per cluster Yes, up to 16 nodes per cluster
Terminal Server No Yes5 Yes Yes
Network Access Protection No Yes6 Yes Yes
U.S. estimated retail price7 US$470 per server ( available only without Hyper-V) US$800 per server

(US$772 without Hyper-V)

US$3,000 per server

(US$2,972 without Hyper-V)

US$3,000 per processor

(US$2,972 per processor without Hyper-V)

CALs or External Connector required8 No Yes Yes Yes

1 Windows Server 2008 Standard, Enterprise, and Datacenter are also offered in “without Hyper-V” editions that do not include the hypervisor technology.

2 When customers exercise the maximum number of OS instances permitted by the server license, the physical OS instance may not be used to run any workload beyond hosting the virtual machines.

3 A single package contains both 32-bit and 64-bit versions. The server license grants the customer the option to use either the 32-bit version or the 64-bit version of the software.

4 Supports hot addition of memory, but not hot replacement of memory, nor hot add or replacement of processors.

5 Use of Windows Server 2008’s new Terminal Services Gateway capability is limited to 250 connections.

6 Includes restrictions limiting scalability.

7 Volume licensing customers typically receive additional discounts of 10% to 30%.

8 Client Access Licenses (CALs) retail for US$40 apiece but are offered to volume customers for as much as 50% off. External Connectors are available only via volume licensing programs. Pricing for an External Connector starts at approximately US$1,800 in the least-discounted programs.