db.r7g.2xlargevsdb.r8g.2xlarge

db.r7g.2xlarge and db.r8g.2xlarge cost the same on demand in US East (N. Virginia), $0.956 per hour.

At a glancedb.r7g.2xlargedb.r8g.2xlarge
On-demand$0.956/hr$0.956/hr
Lowest rate$0.7363/hr1-yr reserved, no upfront$0.641/hr13% less1-yr reserved, no upfront
Size8 vCPUs, 64 GiB8 vCPUs, 64 GiB
Architecturearm64arm64

Prices in US East (N. Virginia)

“Off” is the discount against each type’s own on-demand price. PostgreSQL, USD per hour.

Optiondb.r7g.2xlargedb.r8g.2xlargedb.r8g.2xlarge vs db.r7g.2xlarge
On-demandPay by the hour$0.956$0.956Same
1-yr reservedNo upfront23% off$0.736333% off$0.641▼ 13%
3-yr reservedNo upfront—53% off$0.4493—
1-yr savings planHourly commitment20% off$0.764820% off$0.7648Same

Key differences

The biggest lead each one has.

Where db.r7g.2xlarge leads

No clear lead on the measures we compare.

Where db.r8g.2xlarge leads
Sustained clock2.8 GHz vs 2.6 GHz
8% higher

Specs

8 of 24 specs differ. Those are in bold.

Compute2 of 8 differdb.r7g.2xlargedb.r8g.2xlarge
vCPUs88
Physical cores88
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton3–
CPU makerAWSAWS
Sustained clock2.6 GHz2.8 GHz
BurstableNoNo
MemoryAll 1 matchdb.r7g.2xlargedb.r8g.2xlarge
Memory (GiB)6464
Networking1 of 3 differdb.r7g.2xlargedb.r8g.2xlarge
NetworkUp to 15 Gigabit–
Network baseline3.75 Gbps3.75 Gbps
Network peak15 Gbps15 Gbps
Storage1 of 7 differdb.r7g.2xlargedb.r8g.2xlarge
StorageEBS Only–
EBS baseline bandwidth2,500 Mbps2,500 Mbps
EBS max bandwidth10,000 Mbps10,000 Mbps
EBS baseline throughput312.5 MB/s312.5 MB/s
EBS max throughput1,250 MB/s1,250 MB/s
EBS baseline IOPS12,00012,000
EBS max IOPS40,00040,000
Instance details3 of 4 differdb.r7g.2xlargedb.r8g.2xlarge
Familyr7gr8g
CategoryMemory optimized–
Current generationYes–
Normalization factor1616
Other1 of 1 differdb.r7g.2xlargedb.r8g.2xlarge
Hardware Basisr7g.2xlarger8g.2xlarge

On-demand prices by region

Cheapest for db.r7g.2xlarge first. PostgreSQL, USD per hour.

Regiondb.r7g.2xlargedb.r8g.2xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.956$0.956Same
US East (Ohio)us-east-2$0.956$0.956Same
US West (Oregon)us-west-2$0.956$0.956Same
Asia Pacific (Malaysia)ap-southeast-5$0.976$0.976Same
EU (Stockholm)eu-north-1$0.9816$0.98Same
Mexico (Central)mx-central-1$1.004$1.004Same
Canada (Central)ca-central-1$1.033$1.033Same
EU (Ireland)eu-west-1$1.071$1.072Same
Europe (Spain)eu-south-2$1.071$1.072Same
US West (N. California)us-west-1$1.071$1.072Same
Asia Pacific (Hyderabad)ap-south-2$1.088$1.088Same
Asia Pacific (Mumbai)ap-south-1$1.088$1.088Same
EU (London)eu-west-2$1.122$1.122Same
Asia Pacific (Seoul)ap-northeast-2$1.148$1.148Same
Asia Pacific (Jakarta)ap-southeast-3$1.148$1.148Same
Asia Pacific (Osaka)ap-northeast-3$1.148$1.148Same
Asia Pacific (Singapore)ap-southeast-1$1.148$1.148Same
Asia Pacific (Sydney)ap-southeast-2$1.148$1.148Same
Asia Pacific (Tokyo)ap-northeast-1$1.148$1.148Same
AWS GovCloud (US-East)us-gov-east-1$1.148$1.148Same
AWS GovCloud (US-West)us-gov-west-1$1.148$1.148Same
EU (Frankfurt)eu-central-1$1.165$1.164Same
Asia Pacific (Hong Kong)ap-east-1$1.262$1.262Same
EU (Paris)eu-west-3$1.272$1.122▼ 12%
Europe (Zurich)eu-central-2$1.28$1.28Same
South America (Sao Paulo)sa-east-1$1.52$1.52Same

Keep exploring

Each type’s own page, and how it compares with others.

db.r7g.2xlargeMemory optimized, r7g family
db.r7g.2xlarge prices and specsEvery size in the r7g family

Compare db.r7g.2xlarge with

db.m7g.2xlargedb.r7i.2xlargedb.r7i.2xlarge.tpc2.mem4xdb.r7i.2xlarge.tpc2.mem8xdb.r6g.2xlarge
db.r8g.2xlarger8g family
db.r8g.2xlarge prices and specsEvery size in the r8g family

Compare db.r8g.2xlarge with

db.m8g.2xlargedb.r8gd.2xlargedb.r8i.2xlargedb.r8a.2xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 23–53% below on-demand. Connect your cloud accounts to unlock greater savings with commitment protection.

Connect AWS account

AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.