For details about single DB instance specifications, see Table 1. The specifications vary according to actual situations.
For primary/standby DB instances and read replicas, the specifications are displayed based on the following rules:
Only DB instances running Microsoft SQL Server 2017 EE support the creation of read replicas. Microsoft SQL Server 2017 EE does not support the creation of single DB instances.
Instance Class |
DB Engine |
Spec Code |
vCPUs |
Memory (GB) |
|---|---|---|---|---|
General computing-plus |
MySQL |
rds.mysql.c2.medium |
1 |
2 |
rds.mysql.s1.medium |
1 |
4 |
||
rds.mysql.c2.large |
2 |
4 |
||
rds.mysql.s1.large |
2 |
8 |
||
rds.mysql.m1.large |
2 |
16 |
||
rds.mysql.c2.xlarge |
4 |
8 |
||
rds.mysql.s1.xlarge |
4 |
16 |
||
rds.mysql.m1.xlarge |
4 |
32 |
||
rds.mysql.c2.2xlarge |
8 |
16 |
||
rds.mysql.s1.2xlarge |
8 |
32 |
||
rds.mysql.m1.2xlarge |
8 |
64 |
||
rds.mysql.c2.4xlarge |
16 |
32 |
||
rds.mysql.s1.4xlarge |
16 |
64 |
||
rds.mysql.m1.4xlarge |
16 |
128 |
||
rds.mysql.c2.8xlarge |
32 |
64 |
||
rds.mysql.s1.8xlarge |
32 |
128 |
||
rds.mysql.m1.8xlarge |
32 |
256 |
||
rds.mysql.c3.15xlarge.2 |
60 |
128 |
||
rds.mysql.c3.15xlarge.4 |
60 |
256 |
||
rds.mysql.m3.15xlarge.8 |
60 |
512 |
||
PostgreSQL |
rds.pg.c2.medium |
1 |
2 |
|
rds.pg.s1.medium |
1 |
4 |
||
rds.pg.c2.large |
2 |
4 |
||
rds.pg.s1.large |
2 |
8 |
||
rds.pg.m1.large |
2 |
16 |
||
rds.pg.c2.xlarge |
4 |
8 |
||
rds.pg.s1.xlarge |
4 |
16 |
||
rds.pg.m1.xlarge |
4 |
32 |
||
rds.pg.c2.2xlarge |
8 |
16 |
||
rds.pg.s1.2xlarge |
8 |
32 |
||
rds.pg.m1.2xlarge |
8 |
64 |
||
rds.pg.c2.4xlarge |
16 |
32 |
||
rds.pg.s1.4xlarge |
16 |
64 |
||
rds.pg.m1.4xlarge |
16 |
128 |
||
rds.pg.c2.8xlarge |
32 |
64 |
||
rds.pg.s1.8xlarge |
32 |
128 |
||
rds.pg.m1.8xlarge |
32 |
256 |
||
rds.pg.c3.15xlarge.2 |
60 |
128 |
||
rds.pg.c3.15xlarge.4 |
60 |
256 |
||
rds.pg.m3.15xlarge.8 |
60 |
512 |
||
Microsoft SQL Server |
rds.mssql.c2.large |
2 |
4 |
|
rds.mssql.s1.large |
2 |
8 |
||
rds.mssql.m1.large |
2 |
16 |
||
rds.mssql.c2.xlarge |
4 |
8 |
||
rds.mssql.s1.xlarge |
4 |
16 |
||
rds.mssql.m1.xlarge |
4 |
32 |
||
rds.mssql.c2.2xlarge |
8 |
16 |
||
rds.mssql.s1.2xlarge |
8 |
32 |
||
rds.mssql.m1.2xlarge |
8 |
64 |
||
rds.mssql.c2.4xlarge |
16 |
32 |
||
rds.mssql.s1.4xlarge |
16 |
64 |
||
rds.mssql.m1.4xlarge |
16 |
128 |
||
rds.mssql.c2.8xlarge |
32 |
64 |
||
rds.mssql.s1.8xlarge |
32 |
128 |
||
rds.mssql.m1.8xlarge |
32 |
256 |
||
rds.mssql.c3.15xlarge.2 |
60 |
128 |
||
rds.mssql.c3.15xlarge.4 |
60 |
256 |
||
rds.mssql.m3.15xlarge.8 |
60 |
512 |