Instances AWS RDS db.r8gd.4xlarge db.r8gd.4xlarge
db.r8gd.4xlarge is an AWS RDS size with 16 vCPUs, 128 GiB memory. In US East (N. Virginia) it costs $2.184 per hour on demand ($1,594.32 per month) for PostgreSQL, Single-AZ; a 1-year Database Savings Plan costs $1.747 per hour, 20% less. It is sold in 18 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 $2.184 – – PostgreSQL · Multi-AZ $4.368 – – PostgreSQL · Multi-AZ (readable standbys) $6.552 – – MariaDB · Single-AZ $2.184 – – MySQL · Single-AZ $2.184 – – Aurora PostgreSQL · Single-AZ $2.496 – – Aurora PostgreSQL I/O Optimized · Single-AZ $3.245 – – MariaDB · Multi-AZ $4.368 – – MySQL · Multi-AZ $4.368 – – MySQL · Multi-AZ (readable standbys) $6.552 – –
Compute Value vCPUs 16 Physical cores 16 Threads per core 1 Architecture arm64 CPU maker AWS Sustained clock 2.8 GHz Burstable No
Memory Value Memory (GiB) 128
Networking Value Network Up to 15 Gbps Network baseline 7.5 Gbps Network peak 15 Gbps
Storage Value Storage 1 x 118 NVMe SSD Local disks 1 × 950 GB SSD EBS baseline bandwidth 5,000 Mbps EBS max bandwidth 10,000 Mbps EBS baseline throughput 625 MB/s EBS max throughput 1,250 MB/s EBS baseline IOPS 20,000 EBS max IOPS 40,000
Instance details Value Instance type db.r8gd.4xlarge Family r8gd Category Memory optimized Current generation Yes Normalization factor 32
Other Value Hardware Basis r8gd.4xlarge
With or without local disk and networking
Compute and memory optimized
Other generations
Prices updated 2026-11-12 from AWS public price lists. Compare all AWS RDS sizes .