Windows Server 2008 Hyper-V virtual machines have a predefined set of hardware limitations. The one piece of virtual machine hardware that will change based on the server hardware is the processor. This is because of the architecture of Hyper-V and the fact that the processor is not emulated but exposed directly through to the virtual machine. Therefore, the virtual machine hardware will see the same processor that the server has installed. If the server has a 3.0-GHz physical processor, the virtual machine will have a 3.0-GHz virtual processor. Table 21-1 provides the hardware limits of the virtual machine.
Table 21-1. Virtual Machine Hardware Limits
Number of processors
Processor speed ...