db.r6gd.12xlargevsdb.r8gd.12xlarge

db.r6gd.12xlarge is 6% cheaper than db.r8gd.12xlarge on demand in US East (N. Virginia), saving $278.13 a month.

At a glancedb.r6gd.12xlargedb.r8gd.12xlarge
On-demand$6.171/hr6% less$6.552/hr
Size48 vCPUs, 384 GiB48 vCPUs, 384 GiB
Architecturearm64arm64

Prices in US East (N. Virginia)

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

Optiondb.r6gd.12xlargedb.r8gd.12xlargedb.r8gd.12xlarge vs db.r6gd.12xlarge
On-demandPay by the hour$6.171$6.552▲ 6%
1-yr reservedNo upfront23% off$4.752——
1-yr savings planHourly commitment—20% off$5.242—

Key differences

The biggest lead each one has.

Where db.r6gd.12xlarge leads
On-demand price$6.171 vs $6.552 per hour
6% cheaper
Where db.r8gd.12xlarge leads
EBS baseline IOPS60,000 vs 50,000
20% higher
Network baseline22.5 Gbps vs 20 Gbps
13% higher
Sustained clock2.8 GHz vs 2.5 GHz
12% higher

Specs

16 of 25 specs differ. Those are in bold.

Compute2 of 8 differdb.r6gd.12xlargedb.r8gd.12xlarge
vCPUs4848
Physical cores4848
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton2–
CPU makerAWSAWS
Sustained clock2.5 GHz2.8 GHz
BurstableNoNo
MemoryAll 1 matchdb.r6gd.12xlargedb.r8gd.12xlarge
Memory (GiB)384384
Networking3 of 3 differdb.r6gd.12xlargedb.r8gd.12xlarge
Network20 Gigabit22.5
Network baseline20 Gbps22.5 Gbps
Network peak20 Gbps22.5 Gbps
Storage8 of 8 differdb.r6gd.12xlargedb.r8gd.12xlarge
Storage2 x 1425 NVMe SSDAurora IO Optimization Mode
Local disks2 × 1,425 GB SSD3 × 950 GB SSD
EBS baseline bandwidth14,250 Mbps15,000 Mbps
EBS max bandwidth14,250 Mbps15,000 Mbps
EBS baseline throughput1,781.25 MB/s1,875 MB/s
EBS max throughput1,781.25 MB/s1,875 MB/s
EBS baseline IOPS50,00060,000
EBS max IOPS50,00060,000
Instance details2 of 4 differdb.r6gd.12xlargedb.r8gd.12xlarge
Familyr6gdr8gd
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor96124.8
Other1 of 1 differdb.r6gd.12xlargedb.r8gd.12xlarge
Hardware Basisr6gd.12xlarger8gd.12xlarge

On-demand prices by region

Cheapest for db.r6gd.12xlarge first. PostgreSQL, USD per hour.

Regiondb.r6gd.12xlargedb.r8gd.12xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$6.171$6.552▲ 6%
US East (Ohio)us-east-2$6.171$6.552▲ 6%
US West (Oregon)us-west-2$6.171$6.552▲ 6%
Asia Pacific (Malaysia)ap-southeast-5$6.312$6.696▲ 6%
Canada (Central)ca-central-1$6.677$7.085▲ 6%
EU (Ireland)eu-west-1$6.863$7.301▲ 6%
Europe (Spain)eu-south-2$6.864$7.682▲ 12%
US West (N. California)us-west-1$7.02$7.478▲ 7%
Asia Pacific (Jakarta)ap-southeast-3$7.407$7.884▲ 6%
Asia Pacific (Tokyo)ap-northeast-1$7.407$7.884▲ 6%
Asia Pacific (Sydney)ap-southeast-2$7.456$7.934▲ 6%
EU (Frankfurt)eu-central-1$7.463$7.927▲ 6%
EU (London)eu-west-2$8.755$7.687▼ 12%
Asia Pacific (Seoul)ap-northeast-2$9.014$7.814▼ 13%
South America (Sao Paulo)sa-east-1$15.466$10.418▼ 33%

Keep exploring

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

db.r6gd.12xlargeMemory optimized, r6gd family
db.r6gd.12xlarge prices and specsEvery size in the r6gd family

Compare db.r6gd.12xlarge with

db.r6g.12xlargedb.m6gd.12xlargedb.r6id.12xlargedb.c6gd.12xlarge
db.r8gd.12xlargeMemory optimized, r8gd family
db.r8gd.12xlarge prices and specsEvery size in the r8gd family

Compare db.r8gd.12xlarge with

db.r8g.12xlargedb.m8gd.12xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 20–23% 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.