Amazon RDS for SQL Server provides a selection of instance types optimized to fit different relational database use cases. Instance types comprise varying combinations of CPU, memory, storage, and networking capacity and give you the flexibility to choose the appropriate mix of resources for your database. Each instance type includes one or more instance sizes, allowing you to scale your resources to the requirements of your target workload.

Instance Type vCPU Memory (GiB) PIOPS-Optimized 
Network Performance
General Purpose - Latest Generation
db.m4.large 2
8
Yes Moderate
db.m4.xlarge 4
16
Yes High
db.m4.2xlarge 8
32
Yes High
db.m4.4xlarge 16
64
Yes High
db.m4.10xlarge 40
160
Yes 10 Gbps
db.m4.16xlarge* 64 256 Yes
20 Gbps
General Purpose - Current Generation        
db.m3.medium 1 3.75 - Moderate
db.m3.large 2 7.5 - Moderate
db.m3.xlarge 4 15 Yes High
db.m3.2xlarge 8 30 Yes High
Memory Optimized - Latest Generation      
db.r4.large 2 15.25 Yes Up to 10 Gbps
db.r4.xlarge 4 30.5 Yes Up to 10 Gbps
db.r4.2xlarge 8 61 Yes Up to 10 Gbps
db.r4.4xlarge 16 122 Yes Up to 10 Gbps
db.r4.8xlarge 32 244 Yes 10 Gbps
db.r4.16xlarge* 64 488
Yes 25 Gbps
Memory Optimized - Current Generation  
db.r3.large 2 15.25 - Moderate
db.r3.xlarge 4
30.5 Yes Moderate
db.r3.2xlarge 8
61 Yes High
db.r3.4xlarge 16 122 Yes High
db.r3.8xlarge 32
244 -
10 Gbps
Burstable Performance - Current Generation
db.t2.micro 1 1 - Low
db.t2.small 1 2 - Low
db.t2.medium 2 4 - Moderate
db.t2.large 2 8 - Moderate
db.t2.xlarge 4 16 - High
db.t2.2xlarge 8 32 - High

* These instance types are only available for SQL Server 2016 and later.

Looking for M1 or M2 DB Instances? See the Previous Generation Instances page.

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