db.m8a.48xlargevsdb.r8a.48xlarge

db.m8a.48xlarge is 29% cheaper than db.r8a.48xlarge on demand in US East (N. Virginia), saving $6,096.96 a month.

At a glancedb.m8a.48xlargedb.r8a.48xlarge
On-demand$20.63/hr29% less$28.982/hr
Lowest rate$16.504/hr29% less1-yr savings plan, hourly commitment$23.186/hr1-yr savings plan, hourly commitment
Size192 vCPUs, 768 GiB192 vCPUs, 1536 GiB
Processor5th Generation AMD EPYC5th Generation AMD EPYC
Architecturex86_64x86_64

Prices in US East (N. Virginia)

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

Optiondb.m8a.48xlargedb.r8a.48xlargedb.r8a.48xlarge vs db.m8a.48xlarge
On-demandPay by the hour$20.63$28.982▲ 40%
1-yr savings planHourly commitment20% off$16.50420% off$23.186▲ 40%

Key differences

The biggest lead each one has.

Where db.m8a.48xlarge leads
On-demand price$20.63 vs $28.982 per hour
29% cheaper
Where db.r8a.48xlarge leads
Memory (GiB)1,536 vs 768
2× higher

Specs

4 of 24 specs differ. Those are in bold.

ComputeAll 8 matchdb.m8a.48xlargedb.r8a.48xlarge
vCPUs192192
Physical cores192192
Threads per core11
Architecturex86_64x86_64
Processor5th Generation AMD EPYC5th Generation AMD EPYC
CPU makerAMDAMD
Sustained clock4.5 GHz4.5 GHz
BurstableNoNo
Memory1 of 1 differdb.m8a.48xlargedb.r8a.48xlarge
Memory (GiB)7681,536
NetworkingAll 3 matchdb.m8a.48xlargedb.r8a.48xlarge
Network75000 Mbps75000 Mbps
Network baseline75 Gbps75 Gbps
Network peak75 Gbps75 Gbps
StorageAll 7 matchdb.m8a.48xlargedb.r8a.48xlarge
StorageEBS OnlyEBS Only
EBS baseline bandwidth60,000 Mbps60,000 Mbps
EBS max bandwidth60,000 Mbps60,000 Mbps
EBS baseline throughput7,500 MB/s7,500 MB/s
EBS max throughput7,500 MB/s7,500 MB/s
EBS baseline IOPS240,000240,000
EBS max IOPS240,000240,000
Instance details2 of 4 differdb.m8a.48xlargedb.r8a.48xlarge
Familym8ar8a
CategoryGeneral purposeMemory optimized
Current generationYesYes
Normalization factor768768
Other1 of 1 differdb.m8a.48xlargedb.r8a.48xlarge
Hardware Basism8a.48xlarger8a.48xlarge

On-demand prices by region

Cheapest for db.m8a.48xlarge first. PostgreSQL, USD per hour.

Regiondb.m8a.48xlargedb.r8a.48xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$20.63$28.982▲ 40%
US East (Ohio)us-east-2$20.63$28.982▲ 40%
US West (Oregon)us-west-2$20.63$28.982▲ 40%
EU (Ireland)eu-west-1$22.838$32.458▲ 42%
Europe (Spain)eu-south-2$22.838$32.458▲ 42%
EU (Frankfurt)eu-central-1$24.576$35.357▲ 44%
Asia Pacific (Tokyo)ap-northeast-1$28.637$34.781▲ 21%

Keep exploring

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

db.m8a.48xlargeGeneral purpose, m8a family
db.m8a.48xlarge prices and specsEvery size in the m8a family

Compare db.m8a.48xlarge with

db.m8g.48xlargedb.m8i.48xlarge
db.r8a.48xlargeMemory optimized, r8a family
db.r8a.48xlarge prices and specsEvery size in the r8a family

Compare db.r8a.48xlarge with

db.r8i.48xlargedb.r8g.48xlarge

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.