db.m6id.16xlargevsdb.r6id.16xlarge

db.m6id.16xlarge is 25% cheaper than db.r6id.16xlarge on demand in US East (N. Virginia), saving $1,729.37 a month.

At a glancedb.m6id.16xlargedb.r6id.16xlarge
On-demand$7.174/hr25% less$9.543/hr
Lowest rate$5.524/hr25% less1-yr reserved, no upfront$7.348/hr1-yr reserved, no upfront
Size64 vCPUs, 256 GiB64 vCPUs, 512 GiB
ProcessorIntel Xeon 8375Intel Xeon 8375
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.m6id.16xlargedb.r6id.16xlargedb.r6id.16xlarge vs db.m6id.16xlarge
On-demandPay by the hour$7.174$9.543▲ 33%
1-yr reservedNo upfront23% off$5.52423% off$7.348▲ 33%

Key differences

The biggest lead each one has.

Where db.m6id.16xlarge leads
On-demand price$7.174 vs $9.543 per hour
25% cheaper
Where db.r6id.16xlarge leads
Memory (GiB)512 vs 256
2× higher

Specs

5 of 25 specs differ. Those are in bold.

ComputeAll 8 matchdb.m6id.16xlargedb.r6id.16xlarge
vCPUs6464
Physical cores3232
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon 8375Intel Xeon 8375
CPU makerIntelIntel
Sustained clock3.5 GHz3.5 GHz
BurstableNoNo
Memory1 of 1 differdb.m6id.16xlargedb.r6id.16xlarge
Memory (GiB)256512
NetworkingAll 3 matchdb.m6id.16xlargedb.r6id.16xlarge
Network25 Gbps25 Gbps
Network baseline25 Gbps25 Gbps
Network peak25 Gbps25 Gbps
StorageAll 8 matchdb.m6id.16xlargedb.r6id.16xlarge
Storage2 x 1900 NVMe SSD2 x 1900 NVMe SSD
Local disks2 × 1,900 GB SSD2 × 1,900 GB SSD
EBS baseline bandwidth20,000 Mbps20,000 Mbps
EBS max bandwidth20,000 Mbps20,000 Mbps
EBS baseline throughput2,500 MB/s2,500 MB/s
EBS max throughput2,500 MB/s2,500 MB/s
EBS baseline IOPS80,00080,000
EBS max IOPS80,00080,000
Instance details3 of 4 differdb.m6id.16xlargedb.r6id.16xlarge
Familym6idr6id
CategoryGeneral purposeMemory optimized
Current generationYesYes
Normalization factor256128
Other1 of 1 differdb.m6id.16xlargedb.r6id.16xlarge
Hardware Basism6id.16xlarger6id.16xlarge

On-demand prices by region

Cheapest for db.m6id.16xlarge first. PostgreSQL, USD per hour.

Regiondb.m6id.16xlargedb.r6id.16xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$7.174$9.543▲ 33%
US East (Ohio)us-east-2$7.174$9.543▲ 33%
US West (Oregon)us-west-2$7.174$9.543▲ 33%
Mexico (Central)mx-central-1$7.52$10.016▲ 33%
Canada West (Calgary)ca-west-1$7.885$10.49▲ 33%
EU (Ireland)eu-west-1$7.926$10.611▲ 34%
EU (Frankfurt)eu-central-1$8.575$11.578▲ 35%
Asia Pacific (Malaysia)ap-southeast-5$8.928$10.272▲ 15%
Asia Pacific (Thailand)ap-southeast-7$8.928$10.272▲ 15%
Asia Pacific (Taipei)ap-east-2$8.96$10.304▲ 15%
Asia Pacific (Tokyo)ap-northeast-1$9.941$11.445▲ 15%
Asia Pacific (Sydney)ap-southeast-2$9.976$11.545▲ 16%
Asia Pacific (New Zealand)ap-southeast-6$10.483$12.128▲ 16%

Keep exploring

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

db.m6id.16xlargeGeneral purpose, m6id family
db.m6id.16xlarge prices and specsEvery size in the m6id family

Compare db.m6id.16xlarge with

db.m6i.16xlargedb.m6gd.16xlargedb.m5d.16xlarge
db.r6id.16xlargeMemory optimized, r6id family
db.r6id.16xlarge prices and specsEvery size in the r6id family

Compare db.r6id.16xlarge with

db.r6i.16xlargedb.r6gd.16xlargedb.r5d.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.

Connect AWS account

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