Yesterday during the official launch of Windows 2012 Server , we announced the final scalability details on Windows 2012 and Hyper-V 3.0.

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Windows Server 2012 Standard/Datacenter Editions with Hyper-V Enabled

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Windows Server 2008 R2

Windows Server 2012

Improvement Factor

Logical Processors Per Host

64

320*

5x

Physical Memory per Host

1 Terabyte

4 Terabytes*

4x

Virtual Processors per Host

512

2048*

4x

Virtual Machines per Host

384

1024*

2.7x

       

Virtual Processors per VM

4

64

16x

Memory per VM

64 Gigabytes

1 Terabyte

16x

Maximum Virtual Disk

~2 TB

64 TB*

32x

       

Nodes in a Cluster

16

64*

4x

Virtual Machine in a Cluster

1,000

8,000*

8x

*= Industry Leading