| Virtualization Needs | Microsoft Hyper-V Server 2008 | Windows Server 2008 Standard | Windows Server 2008 Enterprise | Windows Server 2008 Datacenter |
| Server Consolidation | Х | Х | Х | Х |
| Test and Development | Х | Х | Х | Х |
| Mixed OS Virtualization (Linux and Windows) | Х | Х | Х | Х |
| Local Graphical User Interface | | Х | Х | Х |
| High Availability—Clustering | | | Х | Х |
| Quick Migration | | | Х | Х |
| Large Memory Support (Host OS) > 32 GB RAM | | | Х | Х |
| Support for > 4 Processors (Host OS) | | | Х | Х |
| Ability to Add Additional Server Roles | | Х | Х | Х |
| Guest Virtualization Rights Included in Host Server License | None—Each Windows Guest VM Requires a License | 1 Physical + 1 VM* | 1 Physical + 4 VMs* | 1 Physical + Unlimited VMs (Free) |