Windows Server 2012 各版本比較表

Editions	Foundation	Essentials	Standard	Datacenter
Distribution	OEM Only	Retail, volume licensing, OEM	Retail, volume licensing, OEM	Volume licensing and OEM
Licensing Model	Per Server	Per Server	Per CPU pair + CAL/DAL	Per CPU pair + CAL/DAL
Processor Chip Limit	1	2	64	64
Memory Limit	32GB	64GB	4TB	4TB
User Limit	15	25	Unlimited	Unlimited
File Services limits	1 standalone DFS root	1 standalone DFS root	Unlimited	Unlimited
Network Policy & Access Services limits	50 RRAS connections and 10 IAS connections	250 RRAS connections, 50 IAS connections, and 2 IAS Server Groups	Unlimited	Unlimited
Remote Desktop Services limits	50 Remote Desktop Services connections	Gateway only	Unlimited	Unlimited
Virtualization rights	n/a	Either in 1 VM or 1 physical server, but not both at once	2 VMs	Unlimited
DHCP, DNS, Fax server, Printing,  IIS Services	Yes	Yes	Yes	Yes
Windows Server Update Services	No	Yes	Yes	Yes
Active Directory Services	Yes, Must be root of forest and domain	Yes, Must be root of forest and domain	Yes	Yes
Active Directory Certificate Services	Certificate Authorities only	Certificate Authorities only	Yes	Yes
Windows Powershell	Yes	Yes	Yes	Yes
Server Core mode	No	No	Yes	Yes
Hyper-V	No	No	Yes	Yes