Windows Server 2012

Difference between Windows Server 2008 R2 and Windows Server 2012

Processor/Memory Feature

Windows Server 2012

Windows Server 2008 R2

RAM per VM

1TB

64GB

Virtual processors/VM

64

4

# of Active VMs

1,024

384

Virtual processors/VMs

64

4

Virtual processors/hosts

2,048

512

Maximum cluster nodes

64

16

Maximum cluster VMs

8,000

1,000

Physical Memory

4TB

1TB

New Features

Private VLAN

Supported

Not Supported

DHCP Guard

Supported

Not Supported

Router Guard

Supported

Not Supported

Hyper-V Extensible Switch

Supported

Not Supported

Extension Monitoring

Supported

Not Supported

IP Address rewrite

Supported

Not Supported

Generic Routing Encapsulation

Supported

Not Supported

Non-Uniform Memory Access (NUMA) support inside VMs

Supported

Not Supported

Single Root I/O Virtualization (SR-IOV)

Supported

Not Supported

Hyper-V Smart Paging

Supported

Not Supported

Resource Metering

Supported

Not Supported

Runtime Memory Configuration

Supported

Not Supported

Virtual Hard Disk format

Supported

Not Supported

Offload Data Transfer

Supported

Not Supported

Data Center Bridging

Supported

Not Supported

Virtual Fibre Channel in Hyper-V

Supported

Not Supported

QoS Minimum Bandwidth

Supported

Not Supported

Encrypted cluster volumes

Supported

Not Supported

Cluster Shared Volume (CSV) 2.0

Supported

Not Supported

Application Monitoring

Supported

Not Supported

Storage Spaces

Supported

Not Supported

Data Deduplication

Supported

Not Supported

SMB Direct

Supported

Not Supported

Multi-terabyte volumes

Supported

Not Supported

SMB Transparent failover

Supported

Not Supported

Datacenter Diskless boot

Supported

Not Supported

SMB 3.0

Supported

Not Supported

IPAM

Supported

Not Supported

Cross-premise connectivity

Supported

Not Supported

DHCP Failover

Supported

Not Supported

CPU Throttling

Supported

Not Supported

Active Directory based Authentication

Supported

Not Supported

Cloning virtual  domain controllers

Supported

Not Supported

DirectAccess

Supported

Not Supported

Hyper-V Replica

Supported

Not Supported

Live Storage migration

Supported

Not Supported