Some independent software vendor (ISV) licensing is based on the number of physical cores an instance provides. To assist you with physical core licensing calculations for ISV software, the following tables shows the physical cores provided by Amazon EC2 Instances and Amazon RDS DB Instances.

EC2 Instance Type Physical Core Count
t1.micro 1
t2.nano 1
t2.micro 1
t2.small 1
t2.medium 2
t2.large 2

t2.xlarge

4

t2.2xlarge

8

t3.nano 1
t3.micro 1
t3.small 1
t3.medium 1
t3.large 1
t3.xlarge 2
t3.2xlarge 4
m1.small 1
m1.medium 1
m1.large 2
m1.xlarge 4
m2.xlarge 2
m2.2xlarge 4
m2.4xlarge 8
m3.medium 1
m3.large 2
m3.xlarge 4
m3.2xlarge 8
m4.large 1
m4.xlarge 2
m4.2xlarge 4
m4.4xlarge 8
m4.10xlarge 20
m4.16xlarge 32
m5.large 1
m5.xlarge 2
m5.2xlarge 4
m5.4xlarge 8
m5.12xlarge 24
m5.24xlarge 48
m5d.large 1
m5d.xlarge 2
m5d.2xlarge 4
m5d.4xlarge 8
m5d.12xlarge 24
m5d.24xlarge 48
c1.medium 2
c1.xlarge 8
cc2.8xlarge 16
cg1.4xlarge 8
cr1.8xlarge 16
c3.large 1
c3.xlarge 2
c3.2xlarge 4
c3.4xlarge 8
c3.8xlarge 16
c4.large 1
c4.xlarge 2
c4.2xlarge 4
c4.4xlarge 8
c4.8xlarge 18
c5.large 1
c5.xlarge 2
c5.2xlarge 4
c5.4xlarge 8
c5.9xlarge 18
c5.18xlarge 36
c5d.large 1
c5d.xlarge 2
c5d.2xlarge 4
c5d.4xlarge 8
c5d.9xlarge 18
c5d.18xlarge 36
h1.2xlarge 4
h1.4xlarge 8
h1.8xlarge 16
h1.16xlarge 32
hi1.4xlarge 8
hs1.8xlarge 8
g3.4xlarge 8
g3.8xlarge 16
g3.16xlarge 32
g2.2xlarge 16
x1.16xlarge 32
x1.32xlarge 64
x1e.xlarge 2
x1e.2xlarge 4
x1e.4xlarge 8
x1e.8xlarge 16
x1e.16xlarge 32
x1e.32xlarge 64
r3.large 1
r3.xlarge 2
r3.2xlarge 4
r3.4xlarge 8
r3.8xlarge 16
r4.large 1
r4.xlarge 2
r4.2xlarge 4
r4.4xlarge 8
r4.8xlarge 16
r4.16xlarge 32
r5.large 1
r5.xlarge 2
r5.2xlarge 4
r5.4xlarge 8
r5.12xlarge 24
r5.24xlarge 48
r5d.large 1
r5d.xlarge 2
r5d.2xlarge 4
r5d.4xlarge 8
r5d.12xlarge 24
r5d.24xlarge 48
z1d.large 1
z1d.xlarge 2
z1d.2xlarge 4
z1d.3xlarge 6
z1d.6xlarge 12
z1d.12xlarge 24
p2.xlarge 2
p2.8xlarge 16
p2.16xlarge 32
p3.2xlarge 4
p3.8xlarge 16
p3.16xlarge 32

i3.large

1

i3.xlarge

2

i3.2xlarge

4

i3.4xlarge

8

i3.8xlarge

16

i3.16xlarge

32

i2.xlarge 2
i2.2xlarge 4
i2.4xlarge 8
i2.8xlarge 16
d2.xlarge 2
d2.2xlarge 4
d2.4xlarge 8
d2.8xlarge 18
RDS DB Instance Type Physical Core Count
db.t1.micro 1
db.t2.micro 1
db.t2.small 1
db.t2.medium 2
db.t2.large 2
db.m1.small 1
db.m1.medium 1
db.m1.large 2
db.m1.xlarge 4
db.m2.xlarge 2
db.m2.2xlarge 4
db.m2.4xlarge 8
db.m3.medium 1
db.m3.large 1
db.m3.xlarge 2
db.m3.2xlarge 4
db.m4.large 1
db.m4.xlarge 2
db.m4.2xlarge 4
db.m4.4xlarge 8
db.m4.10xlarge 20
db.cr1.8xlarge 16
db.r3.large 1
db.r3.xlarge 2
db.r3.2xlarge 4
db.r3.4xlarge 8
db.r3.8xlarge 16

Note: This page is informational only and is not intended to provide legal advice regarding the licensing of your software. Please consult your specific license agreements for information on how your software is licensed.