A Dedicated Host is configured to support one instance type at a time. For example, if you allocate a c4.xlarge Dedicated Host, you can use a Dedicated Host with two sockets and 20 physical cores configured to support up to 8 c4.xlarge instances. Refer to the table below for Dedicated Host instance configurations. For more information on instances, visit Amazon EC2 Product Details.

Dedicated Hosts Configuration Table

Dedicated Host Attributes         Instance Capacity Per Host by Instance Size      
Instance Type Sockets Physical Cores medium large xlarge 2xlarge 4xlarge 8xlarge 9xlarge 10xlarge 12xlarge 16xlarge 18xlarge 24xlarge 32xlarge
c4 2 20 - 16 8 4 2 1 - - - - - - -
m4 2 24 - 22 11 5 2 - - 1 - - - - -
d2 2 24 - - 8 4 2 1 - - - - - - -
r4 2 36 - 32 16 8 4 2 - - - 1 - - -
i3 2 36 - 32 16 8 4 2 - - - 1 - - -