db.m8a.largevsdb.r8a.large

db.m8a.large is 29% cheaper than db.r8a.large on demand in US East (N. Virginia), saving $63.51 a month.

At a glancedb.m8a.largedb.r8a.large
On-demand$0.2149/hr29% less$0.3019/hr
Lowest rate$0.1719/hr29% less1-yr savings plan, hourly commitment$0.2415/hr1-yr savings plan, hourly commitment
Size2 vCPUs, 8 GiB2 vCPUs, 16 GiB

Prices in US East (N. Virginia)

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

Optiondb.m8a.largedb.r8a.largedb.r8a.large vs db.m8a.large
On-demandPay by the hour$0.2149$0.3019▲ 40%
1-yr savings planHourly commitment20% off$0.171920% off$0.2415▲ 40%

Key differences

The biggest lead each one has.

Where db.m8a.large leads
On-demand price$0.2149 vs $0.3019 per hour
29% cheaper
Where db.r8a.large leads
Memory (GiB)16 vs 8
2× higher

Specs

10 of 24 specs differ. Those are in bold.

Compute2 of 8 differdb.m8a.largedb.r8a.large
vCPUs22
Physical cores22
Threads per core11
Architecturex86_64–
Processor5th Generation AMD EPYC–
CPU makerAMDAMD
Sustained clock4.5 GHz4.5 GHz
BurstableNoNo
Memory1 of 1 differdb.m8a.largedb.r8a.large
Memory (GiB)816
Networking1 of 3 differdb.m8a.largedb.r8a.large
NetworkUp to 12500 Mbps–
Network baseline0.937 Gbps0.937 Gbps
Network peak12.5 Gbps12.5 Gbps
Storage1 of 7 differdb.m8a.largedb.r8a.large
StorageEBS Only–
EBS baseline bandwidth650 Mbps650 Mbps
EBS max bandwidth10,000 Mbps10,000 Mbps
EBS baseline throughput81.25 MB/s81.25 MB/s
EBS max throughput1,250 MB/s1,250 MB/s
EBS baseline IOPS3,6003,600
EBS max IOPS40,00040,000
Instance details4 of 4 differdb.m8a.largedb.r8a.large
Familym8ar8a
CategoryGeneral purpose–
Current generationYes–
Normalization factor–4
Other1 of 1 differdb.m8a.largedb.r8a.large
Hardware Basism8a.larger8a.large

On-demand prices by region

Cheapest for db.m8a.large first. PostgreSQL, USD per hour.

Regiondb.m8a.largedb.r8a.largeDifference
US East (N. Virginia)Used in summaryus-east-1$0.2149$0.3019▲ 40%
US East (Ohio)us-east-2$0.2149$0.3019▲ 40%
US West (Oregon)us-west-2$0.2149$0.3019▲ 40%
EU (Ireland)eu-west-1$0.2379$0.3381▲ 42%
Europe (Spain)eu-south-2$0.2379$0.3381▲ 42%
EU (Frankfurt)eu-central-1$0.256$0.3683▲ 44%
Asia Pacific (Tokyo)ap-northeast-1$0.2983$0.3623▲ 21%

Keep exploring

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

db.m8a.largeGeneral purpose, m8a family
db.m8a.large prices and specsEvery size in the m8a family

Compare db.m8a.large with

db.m8g.largedb.m8i.large
db.r8a.larger8a family
db.r8a.large prices and specsEvery size in the r8a family

Compare db.r8a.large with

db.r8i.largedb.r8g.large

Pay the committed rate, with commitment protection

The best committed rate on these two is 20% 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.