db.r6gd.xlargevsdb.r8gd.xlarge

db.r6gd.xlarge is 6% cheaper than db.r8gd.xlarge on demand in US East (N. Virginia), saving $23.36 a month.

At a glancedb.r6gd.xlargedb.r8gd.xlarge
On-demand$0.514/hr6% less$0.546/hr
Size4 vCPUs, 32 GiB4 vCPUs, 32 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.xlargedb.r8gd.xlargedb.r8gd.xlarge vs db.r6gd.xlarge
On-demandPay by the hour$0.514$0.546▲ 6%
1-yr reservedNo upfront23% off$0.396——
1-yr savings planHourly commitment—20% off$0.4368—

Key differences

The biggest lead each one has.

Where db.r6gd.xlarge leads
On-demand price$0.514 vs $0.546 per hour
6% cheaper
Where db.r8gd.xlarge leads
EBS max bandwidth10,000 Mbps vs 4,750 Mbps
2.1× higher
Network baseline1.875 Gbps vs 1.25 Gbps
50% 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.xlargedb.r8gd.xlarge
vCPUs44
Physical cores44
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton2–
CPU makerAWSAWS
Sustained clock2.5 GHz2.8 GHz
BurstableNoNo
MemoryAll 1 matchdb.r6gd.xlargedb.r8gd.xlarge
Memory (GiB)3232
Networking3 of 3 differdb.r6gd.xlargedb.r8gd.xlarge
NetworkUp to 10 Gigabit–
Network baseline1.25 Gbps1.875 Gbps
Network peak10 Gbps12.5 Gbps
Storage6 of 8 differdb.r6gd.xlargedb.r8gd.xlarge
Storage1 x 237 NVMe SSD–
Local disks1 × 237 GB SSD1 × 237 GB SSD
EBS baseline bandwidth1,188 Mbps1,250 Mbps
EBS max bandwidth4,750 Mbps10,000 Mbps
EBS baseline throughput148.5 MB/s156.25 MB/s
EBS max throughput593.75 MB/s1,250 MB/s
EBS baseline IOPS6,0006,000
EBS max IOPS20,00040,000
Instance details4 of 4 differdb.r6gd.xlargedb.r8gd.xlarge
Familyr6gdr8gd
CategoryMemory optimized–
Current generationYes–
Normalization factor168
Other1 of 1 differdb.r6gd.xlargedb.r8gd.xlarge
Hardware Basisr6gd.xlarger8gd.xlarge

On-demand prices by region

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

Regiondb.r6gd.xlargedb.r8gd.xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.514$0.546▲ 6%
US East (Ohio)us-east-2$0.514$0.546▲ 6%
US West (Oregon)us-west-2$0.514$0.546▲ 6%
Asia Pacific (Malaysia)ap-southeast-5$0.526$0.558▲ 6%
Canada (Central)ca-central-1$0.556$0.5904▲ 6%
EU (Ireland)eu-west-1$0.572$0.6084▲ 6%
Europe (Spain)eu-south-2$0.572$0.6402▲ 12%
US West (N. California)us-west-1$0.585$0.6232▲ 7%
Asia Pacific (Jakarta)ap-southeast-3$0.617$0.657▲ 6%
Asia Pacific (Tokyo)ap-northeast-1$0.617$0.657▲ 6%
Asia Pacific (Sydney)ap-southeast-2$0.621$0.6612▲ 6%
EU (Frankfurt)eu-central-1$0.622$0.6606▲ 6%
EU (London)eu-west-2$0.73$0.6406▼ 12%
Asia Pacific (Seoul)ap-northeast-2$0.751$0.6512▼ 13%
South America (Sao Paulo)sa-east-1$1.289$0.868▼ 33%

Keep exploring

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

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

Compare db.r6gd.xlarge with

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

Compare db.r8gd.xlarge with

db.r8g.xlargedb.m8gd.xlarge

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.