db.m8a.24xlargevsdb.r8a.24xlarge

db.m8a.24xlarge is 29% cheaper than db.r8a.24xlarge on demand in US East (N. Virginia), saving $3,048.48 a month.

At a glancedb.m8a.24xlargedb.r8a.24xlarge
On-demand$10.315/hr29% less$14.491/hr
Lowest rate$8.252/hr29% less1-yr savings plan, hourly commitment$11.593/hr1-yr savings plan, hourly commitment
Size96 vCPUs, 384 GiB96 vCPUs, 768 GiB
Processor5th Generation AMD EPYCAMD EPYC 9R45 Processor
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.24xlargedb.r8a.24xlargedb.r8a.24xlarge vs db.m8a.24xlarge
On-demandPay by the hour$10.315$14.491▲ 40%
1-yr savings planHourly commitment20% off$8.25220% off$11.593▲ 40%

Key differences

The biggest lead each one has.

Where db.m8a.24xlarge leads
On-demand price$10.315 vs $14.491 per hour
29% cheaper
Where db.r8a.24xlarge leads
Memory (GiB)768 vs 384
2× higher

Specs

11 of 27 specs differ. Those are in bold.

Compute3 of 10 differdb.m8a.24xlargedb.r8a.24xlarge
vCPUs9696
Physical cores9696
Threads per core11
Architecturex86_64x86_64
Processor5th Generation AMD EPYCAMD EPYC 9R45 Processor
CPU makerAMDAMD
Clock speed–Up to 4.5 GHz
Sustained clock4.5 GHz4.5 GHz
Processor features–AMD Turbo; AVX; AVX2; AVX512
BurstableNoNo
Memory1 of 1 differdb.m8a.24xlargedb.r8a.24xlarge
Memory (GiB)384768
Networking1 of 3 differdb.m8a.24xlargedb.r8a.24xlarge
Network40000 Mbps40000 Megabit
Network baseline40 Gbps40 Gbps
Network peak40 Gbps40 Gbps
Storage2 of 8 differdb.m8a.24xlargedb.r8a.24xlarge
StorageEBS OnlyAurora IO Optimization Mode
EBS throughput–30000 Mbps
EBS baseline bandwidth30,000 Mbps30,000 Mbps
EBS max bandwidth30,000 Mbps30,000 Mbps
EBS baseline throughput3,750 MB/s3,750 MB/s
EBS max throughput3,750 MB/s3,750 MB/s
EBS baseline IOPS120,000120,000
EBS max IOPS120,000120,000
Instance details3 of 4 differdb.m8a.24xlargedb.r8a.24xlarge
Familym8ar8a
CategoryGeneral purposeMemory optimized
Current generationYesYes
Normalization factor192249.6
Other1 of 1 differdb.m8a.24xlargedb.r8a.24xlarge
Hardware Basism8a.24xlarger8a.24xlarge

On-demand prices by region

Cheapest for db.m8a.24xlarge first. PostgreSQL, USD per hour.

Regiondb.m8a.24xlargedb.r8a.24xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$10.315$14.491▲ 40%
US East (Ohio)us-east-2$10.315$14.491▲ 40%
US West (Oregon)us-west-2$10.315$14.491▲ 40%
EU (Ireland)eu-west-1$11.419$16.229▲ 42%
Europe (Spain)eu-south-2$11.419$16.229▲ 42%
EU (Frankfurt)eu-central-1$12.288$17.678▲ 44%
Asia Pacific (Tokyo)ap-northeast-1$14.318$17.39▲ 21%

Keep exploring

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

db.m8a.24xlargeGeneral purpose, m8a family
db.m8a.24xlarge prices and specsEvery size in the m8a family

Compare db.m8a.24xlarge with

db.m8g.24xlargedb.m8i.24xlarge
db.r8a.24xlargeMemory optimized, r8a family
db.r8a.24xlarge prices and specsEvery size in the r8a family

Compare db.r8a.24xlarge with

db.r8i.24xlargedb.r8g.24xlarge

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.

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