db.r6gd.16xlargevsdb.r6id.16xlarge

db.r6gd.16xlarge is 14% cheaper than db.r6id.16xlarge on demand in US East (N. Virginia), saving $959.22 a month. They use different processor architectures (arm64 and x86_64), so software built for one may need rebuilding to run on the other.

At a glancedb.r6gd.16xlargedb.r6id.16xlarge
On-demand$8.229/hr14% less$9.543/hr
Lowest rate$6.336/hr14% less1-yr reserved, no upfront$7.348/hr1-yr reserved, no upfront
Size64 vCPUs, 512 GiB64 vCPUs, 512 GiB
Architecturearm64x86_64

Prices in US East (N. Virginia)

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

Optiondb.r6gd.16xlargedb.r6id.16xlargedb.r6id.16xlarge vs db.r6gd.16xlarge
On-demandPay by the hour$8.229$9.543▲ 16%
1-yr reservedNo upfront23% off$6.33623% off$7.348▲ 16%

Key differences

The biggest lead each one has.

Where db.r6gd.16xlarge leads
On-demand price$8.229 vs $9.543 per hour
14% cheaper
Physical cores64 vs 32
2× higher
Where db.r6id.16xlarge leads
Sustained clock3.5 GHz vs 2.5 GHz
40% higher
EBS baseline bandwidth20,000 Mbps vs 19,000 Mbps
5% higher

Specs

16 of 25 specs differ. Those are in bold.

Compute6 of 8 differdb.r6gd.16xlargedb.r6id.16xlarge
vCPUs6464
Physical cores6432
Threads per core12
Architecturearm64x86_64
Processor–Intel Xeon 8375
CPU makerAWSIntel
Sustained clock2.5 GHz3.5 GHz
BurstableNoNo
MemoryAll 1 matchdb.r6gd.16xlargedb.r6id.16xlarge
Memory (GiB)512512
Networking1 of 3 differdb.r6gd.16xlargedb.r6id.16xlarge
Network–25 Gbps
Network baseline25 Gbps25 Gbps
Network peak25 Gbps25 Gbps
Storage5 of 8 differdb.r6gd.16xlargedb.r6id.16xlarge
Storage–2 x 1900 NVMe SSD
Local disks2 × 1,900 GB SSD2 × 1,900 GB SSD
EBS baseline bandwidth19,000 Mbps20,000 Mbps
EBS max bandwidth19,000 Mbps20,000 Mbps
EBS baseline throughput2,375 MB/s2,500 MB/s
EBS max throughput2,375 MB/s2,500 MB/s
EBS baseline IOPS80,00080,000
EBS max IOPS80,00080,000
Instance details3 of 4 differdb.r6gd.16xlargedb.r6id.16xlarge
Familyr6gdr6id
Category–Memory optimized
Current generation–Yes
Normalization factor128128
Other1 of 1 differdb.r6gd.16xlargedb.r6id.16xlarge
Hardware Basisr6gd.16xlarger6id.16xlarge

On-demand prices by region

Cheapest for db.r6gd.16xlarge first. PostgreSQL, USD per hour.

Regiondb.r6gd.16xlargedb.r6id.16xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$8.229$9.543▲ 16%
US East (Ohio)us-east-2$8.229$9.543▲ 16%
US West (Oregon)us-west-2$8.229$9.543▲ 16%
Asia Pacific (Malaysia)ap-southeast-5$8.416$10.272▲ 22%
Asia Pacific (Thailand)ap-southeast-7$8.416$10.272▲ 22%
Mexico (Central)mx-central-1$8.64$10.016▲ 16%
Asia Pacific (Taipei)ap-east-2$8.896$10.304▲ 16%
EU (Ireland)eu-west-1$9.151$10.611▲ 16%
Israel (Tel Aviv)il-central-1$9.61$11.21▲ 17%
Asia Pacific (Tokyo)ap-northeast-1$9.876$11.445▲ 16%
Asia Pacific (Sydney)ap-southeast-2$9.942$11.545▲ 16%
EU (Frankfurt)eu-central-1$9.951$11.578▲ 16%
Asia Pacific (New Zealand)ap-southeast-6$16.403$12.128▼ 26%

Keep exploring

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

db.r6gd.16xlarger6gd family
db.r6gd.16xlarge prices and specsEvery size in the r6gd family

Compare db.r6gd.16xlarge with

db.r6g.16xlargedb.m6gd.16xlargedb.c6gd.16xlargedb.r8gd.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.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.

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