db.r6gd.8xlargevsdb.r8gd.8xlarge

db.r6gd.8xlarge is 6% cheaper than db.r8gd.8xlarge on demand in US East (N. Virginia), saving $185.42 a month.

At a glancedb.r6gd.8xlargedb.r8gd.8xlarge
On-demand$4.114/hr6% less$4.368/hr
Size32 vCPUs, 256 GiB32 vCPUs, 256 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.8xlargedb.r8gd.8xlargedb.r8gd.8xlarge vs db.r6gd.8xlarge
On-demandPay by the hour$4.114$4.368▲ 6%
1-yr reservedNo upfront23% off$3.168——
1-yr savings planHourly commitment—20% off$3.494—

Key differences

The biggest lead each one has.

Where db.r6gd.8xlarge leads
On-demand price$4.114 vs $4.368 per hour
6% cheaper
Where db.r8gd.8xlarge leads
Network baseline15 Gbps vs 12 Gbps
25% higher
Sustained clock2.8 GHz vs 2.5 GHz
12% higher
EBS baseline bandwidth10,000 Mbps vs 9,500 Mbps
5% higher

Specs

15 of 25 specs differ. Those are in bold.

Compute2 of 8 differdb.r6gd.8xlargedb.r8gd.8xlarge
vCPUs3232
Physical cores3232
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton2–
CPU makerAWSAWS
Sustained clock2.5 GHz2.8 GHz
BurstableNoNo
MemoryAll 1 matchdb.r6gd.8xlargedb.r8gd.8xlarge
Memory (GiB)256256
Networking3 of 3 differdb.r6gd.8xlargedb.r8gd.8xlarge
Network10 Gigabit–
Network baseline12 Gbps15 Gbps
Network peak12 Gbps15 Gbps
Storage5 of 8 differdb.r6gd.8xlargedb.r8gd.8xlarge
Storage1 x 1900 NVMe SSD–
Local disks1 × 1,900 GB SSD1 × 1,900 GB SSD
EBS baseline bandwidth9,500 Mbps10,000 Mbps
EBS max bandwidth9,500 Mbps10,000 Mbps
EBS baseline throughput1,187.5 MB/s1,250 MB/s
EBS max throughput1,187.5 MB/s1,250 MB/s
EBS baseline IOPS40,00040,000
EBS max IOPS40,00040,000
Instance details4 of 4 differdb.r6gd.8xlargedb.r8gd.8xlarge
Familyr6gdr8gd
CategoryMemory optimized–
Current generationYes–
Normalization factor12864
Other1 of 1 differdb.r6gd.8xlargedb.r8gd.8xlarge
Hardware Basisr6gd.8xlarger8gd.8xlarge

On-demand prices by region

Cheapest for db.r6gd.8xlarge first. PostgreSQL, USD per hour.

Regiondb.r6gd.8xlargedb.r8gd.8xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$4.114$4.368▲ 6%
US East (Ohio)us-east-2$4.114$4.368▲ 6%
US West (Oregon)us-west-2$4.114$4.368▲ 6%
Asia Pacific (Malaysia)ap-southeast-5$4.208$4.464▲ 6%
Canada (Central)ca-central-1$4.451$4.723▲ 6%
EU (Ireland)eu-west-1$4.575$4.867▲ 6%
Europe (Spain)eu-south-2$4.576$5.122▲ 12%
US West (N. California)us-west-1$4.68$4.986▲ 7%
Asia Pacific (Jakarta)ap-southeast-3$4.938$5.256▲ 6%
Asia Pacific (Tokyo)ap-northeast-1$4.938$5.256▲ 6%
Asia Pacific (Sydney)ap-southeast-2$4.971$5.29▲ 6%
EU (Frankfurt)eu-central-1$4.975$5.285▲ 6%
EU (London)eu-west-2$5.837$5.125▼ 12%
Asia Pacific (Seoul)ap-northeast-2$6.01$5.21▼ 13%
South America (Sao Paulo)sa-east-1$10.31$6.945▼ 33%

Keep exploring

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

db.r6gd.8xlargeMemory optimized, r6gd family
db.r6gd.8xlarge prices and specsEvery size in the r6gd family

Compare db.r6gd.8xlarge with

db.r6g.8xlargedb.m6gd.8xlargedb.r6id.8xlargedb.c6gd.8xlarge
db.r8gd.8xlarger8gd family
db.r8gd.8xlarge prices and specsEvery size in the r8gd family

Compare db.r8gd.8xlarge with

db.r8g.8xlargedb.m8gd.8xlarge

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.

Connect AWS account

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