Instances AWS RDS db.r3.xlarge db.r3.xlarge
db.r3.xlarge is an AWS RDS size with 4 vCPUs, 30.5 GiB memory. In US East (N. Virginia) it costs $0.5 per hour on demand ($365.00 per month) for PostgreSQL, Single-AZ. It is sold in 14 regions.
USD per hour, PostgreSQL, Single-AZ. Reserved prices are no upfront, standard. Cheapest on-demand first.
Prices by engine and deployment in US East (N. Virginia) Option On-demand /hr 1-yr reserved /hr 3-yr reserved /hr PostgreSQL · Single-AZ $0.5 – – PostgreSQL · Multi-AZ $1.00 – – MariaDB · Single-AZ $0.475 – – MySQL · Single-AZ $0.475 – – Oracle Enterprise BYOL · Single-AZ $0.475 – – Oracle Standard Two BYOL · Single-AZ $0.475 – – Aurora MySQL · Single-AZ $0.58 – – MariaDB · Multi-AZ $0.95 – – MySQL · Multi-AZ $0.95 – – Oracle Enterprise BYOL · Multi-AZ $0.95 – – Oracle Standard Two BYOL · Multi-AZ $0.95 – – Oracle Standard Two · Single-AZ $0.978 – – Oracle Standard Two · Multi-AZ $1.957 – –
Compute Value vCPUs 4 Physical cores 2 Threads per core 2 CPU maker Intel Sustained clock 2.5 GHz Burstable No
Memory Value Memory (GiB) 30.5
Networking Value Network baseline 0.7 Gbps Network peak 2.8 Gbps
Storage Value Local disks 1 × 80 GB SSD EBS baseline bandwidth 500 Mbps EBS max bandwidth 500 Mbps EBS baseline throughput 62.5 MB/s EBS max throughput 62.5 MB/s EBS baseline IOPS 4,000 EBS max IOPS 4,000
Instance details Value Instance type db.r3.xlarge Family r3 Normalization factor 8
Other Value Hardware Basis r3.xlarge
Compute and memory optimized
Other generations
Prices updated 2026-11-12 from AWS public price lists. Compare all AWS RDS sizes .