This 25 page document goes through all the features of Windows Server Hyper-V and highlights what’s changed between 2008 R2 and 2012.
The following tables compare selected features of Windows Server 2008 R2 Hyper-V and Windows Server 2012 Hyper-V.
The tables include comments about each version’s performance, as well as a notation about how well each feature is supported.
- WHITEPAPER: Feature Comparison- Windows Server 2008 R2 Hyper-V and Windows
http://download.microsoft.com/download/2/C/A/2CA38362-37ED-4112-86A8-FDF14D5D4C9B/WS%202012%20Feature%20Comparison_Hyper-V.pdf
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