db.m5d.16xlargevsdb.r5d.16xlarge

db.m5d.16xlarge is 27% cheaper than db.r5d.16xlarge on demand in US East (N. Virginia), saving $1,779.74 a month.

At a glancedb.m5d.16xlargedb.r5d.16xlarge
On-demand$6.705/hr27% less$9.143/hr
Lowest rate$5.163/hr27% less1-yr reserved, no upfront$7.04/hr1-yr reserved, no upfront
Size64 vCPUs, 256 GiB64 vCPUs, 512 GiB
ProcessorIntel Xeon Platinum 8175Intel Xeon Platinum 8175
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.m5d.16xlargedb.r5d.16xlargedb.r5d.16xlarge vs db.m5d.16xlarge
On-demandPay by the hour$6.705$9.143▲ 36%
1-yr reservedNo upfront23% off$5.16323% off$7.04▲ 36%

Key differences

The biggest lead each one has.

Where db.m5d.16xlarge leads
On-demand price$6.705 vs $9.143 per hour
27% cheaper
Where db.r5d.16xlarge leads
Memory (GiB)512 vs 256
2× higher

Specs

5 of 25 specs differ. Those are in bold.

ComputeAll 8 matchdb.m5d.16xlargedb.r5d.16xlarge
vCPUs6464
Physical cores3232
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon Platinum 8175Intel Xeon Platinum 8175
CPU makerIntelIntel
Sustained clock3.1 GHz3.1 GHz
BurstableNoNo
Memory1 of 1 differdb.m5d.16xlargedb.r5d.16xlarge
Memory (GiB)256512
NetworkingAll 3 matchdb.m5d.16xlargedb.r5d.16xlarge
Network20 Gbps20 Gbps
Network baseline20 Gbps20 Gbps
Network peak20 Gbps20 Gbps
StorageAll 8 matchdb.m5d.16xlargedb.r5d.16xlarge
Storage4 x 600 NVMe SSD4 x 600 NVMe SSD
Local disks4 × 600 GB SSD4 × 600 GB SSD
EBS baseline bandwidth13,600 Mbps13,600 Mbps
EBS max bandwidth13,600 Mbps13,600 Mbps
EBS baseline throughput1,700 MB/s1,700 MB/s
EBS max throughput1,700 MB/s1,700 MB/s
EBS baseline IOPS60,00060,000
EBS max IOPS60,00060,000
Instance details3 of 4 differdb.m5d.16xlargedb.r5d.16xlarge
Familym5dr5d
CategoryGeneral purposeMemory optimized
Current generationYesYes
Normalization factor128384
Other1 of 1 differdb.m5d.16xlargedb.r5d.16xlarge
Hardware Basism5d.16xlarger5d.16xlarge

On-demand prices by region

Cheapest for db.m5d.16xlarge first. PostgreSQL, USD per hour.

Regiondb.m5d.16xlargedb.r5d.16xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$6.705$9.143▲ 36%
US East (Ohio)us-east-2$6.705$9.143▲ 36%
US West (Oregon)us-west-2$6.705$9.143▲ 36%
EU (Stockholm)eu-north-1$7.04$9.329▲ 33%
Canada (Central)ca-central-1$7.386$9.903▲ 34%
EU (Ireland)eu-west-1$7.423$10.167▲ 37%
US West (N. California)us-west-1$7.714$10.368▲ 34%
AWS GovCloud (US-East)us-gov-east-1$7.721$10.26▲ 33%
AWS GovCloud (US-West)us-gov-west-1$7.721$10.241▲ 33%
EU (Paris)eu-west-3$7.769$10.743▲ 38%
EU (London)eu-west-2$7.78$10.743▲ 38%
EU (Milan)eu-south-1$7.807$10.679▲ 37%
EU (Frankfurt)eu-central-1$8.023$11.108▲ 38%
Middle East (Bahrain)me-south-1$8.18$11.191▲ 37%
Middle East (UAE)me-central-1$8.18$11.191▲ 37%
South America (Sao Paulo)sa-east-1$8.772$19.02▲ 117%
Africa (Cape Town)af-south-1$8.844$12.051▲ 36%
Asia Pacific (Jakarta)ap-southeast-3$9.287$10.989▲ 18%
Asia Pacific (Singapore)ap-southeast-1$9.287$10.989▲ 18%
Asia Pacific (Tokyo)ap-northeast-1$9.306$10.989▲ 18%
Asia Pacific (Seoul)ap-northeast-2$9.311$10.926▲ 17%
Asia Pacific (Sydney)ap-southeast-2$9.353$11.062▲ 18%
Asia Pacific (Osaka)ap-northeast-3$9.758$10.989▲ 13%
Asia Pacific (Mumbai)ap-south-1$9.779$10.593▲ 8%
Asia Pacific (Hong Kong)ap-east-1$10.209$11.066▲ 8%
Asia Pacific (Hyderabad)ap-south-2$38.56$41.309▲ 7%

Keep exploring

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

db.m5d.16xlargeGeneral purpose, m5d family
db.m5d.16xlarge prices and specsEvery size in the m5d family

Compare db.m5d.16xlarge with

db.m5.16xlargedb.m6id.16xlarge
db.r5d.16xlargeMemory optimized, r5d family
db.r5d.16xlarge prices and specsEvery size in the r5d family

Compare db.r5d.16xlarge with

db.r5.16xlargedb.r6id.16xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 23% 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.