Table 9-1 summarizes the basic features found in Windows Server 2008 R2 Hyper-V Enterprise and Datacenter editions, as well as in the free, stand-alone Hyper-V Server 2008 R2 product. Windows Server 2008 R2 Hyper-V Standard Edition is also available, but is not shown in this table. A significant change that comes with the R2 version of Hyper-V is the support for 32 processor cores to accommodate servers with up to eight quad-core physical processors. Windows Server 2008 Hyper-V supports 16 cores, and it can support 24 cores with the installation of an additional update (KB 956710).
Table 9-1. Hyper-V R2 Feature Comparison
Microsoft Hyper-V Server 2008 R2
Windows Server 2008 R2 Enterprise
Windows Server 2008 ...