db.r5d.16xlargevsdb.r6id.16xlarge

db.r5d.16xlarge is 4% cheaper than db.r6id.16xlarge on demand in US East (N. Virginia), saving $292.00 a month.

At a glancedb.r5d.16xlargedb.r6id.16xlarge
On-demand$9.143/hr4% less$9.543/hr
Lowest rate$7.04/hr4% less1-yr reserved, no upfront$7.348/hr1-yr reserved, no upfront
Size64 vCPUs, 512 GiB64 vCPUs, 512 GiB
ProcessorIntel Xeon Platinum 8175Intel 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.r5d.16xlargedb.r6id.16xlargedb.r6id.16xlarge vs db.r5d.16xlarge
On-demandPay by the hour$9.143$9.543▲ 4%
1-yr reservedNo upfront23% off$7.0423% off$7.348▲ 4%

Key differences

The biggest lead each one has.

Where db.r5d.16xlarge leads
On-demand price$9.143 vs $9.543 per hour
4% cheaper
Where db.r6id.16xlarge leads
EBS baseline bandwidth20,000 Mbps vs 13,600 Mbps
47% higher
Network baseline25 Gbps vs 20 Gbps
25% higher
Sustained clock3.5 GHz vs 3.1 GHz
13% higher

Specs

16 of 25 specs differ. Those are in bold.

Compute2 of 8 differdb.r5d.16xlargedb.r6id.16xlarge
vCPUs6464
Physical cores3232
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon Platinum 8175Intel Xeon 8375
CPU makerIntelIntel
Sustained clock3.1 GHz3.5 GHz
BurstableNoNo
MemoryAll 1 matchdb.r5d.16xlargedb.r6id.16xlarge
Memory (GiB)512512
Networking3 of 3 differdb.r5d.16xlargedb.r6id.16xlarge
Network20 Gbps25 Gbps
Network baseline20 Gbps25 Gbps
Network peak20 Gbps25 Gbps
Storage8 of 8 differdb.r5d.16xlargedb.r6id.16xlarge
Storage4 x 600 NVMe SSD2 x 1900 NVMe SSD
Local disks4 × 600 GB SSD2 × 1,900 GB SSD
EBS baseline bandwidth13,600 Mbps20,000 Mbps
EBS max bandwidth13,600 Mbps20,000 Mbps
EBS baseline throughput1,700 MB/s2,500 MB/s
EBS max throughput1,700 MB/s2,500 MB/s
EBS baseline IOPS60,00080,000
EBS max IOPS60,00080,000
Instance details2 of 4 differdb.r5d.16xlargedb.r6id.16xlarge
Familyr5dr6id
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor384128
Other1 of 1 differdb.r5d.16xlargedb.r6id.16xlarge
Hardware Basisr5d.16xlarger6id.16xlarge

On-demand prices by region

Cheapest for db.r5d.16xlarge first. PostgreSQL, USD per hour.

Regiondb.r5d.16xlargedb.r6id.16xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$9.143$9.543▲ 4%
US East (Ohio)us-east-2$9.143$9.543▲ 4%
US West (Oregon)us-west-2$9.143$9.543▲ 4%
EU (Ireland)eu-west-1$10.167$10.611▲ 4%
Asia Pacific (Tokyo)ap-northeast-1$10.989$11.445▲ 4%
Asia Pacific (Sydney)ap-southeast-2$11.062$11.545▲ 4%
EU (Frankfurt)eu-central-1$11.108$11.578▲ 4%

Keep exploring

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

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

Compare db.r5d.16xlarge with

db.m5d.16xlargedb.r5.16xlarge
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.m6id.16xlargedb.r6gd.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.