db.c6gd.4xlargevsdb.r6gd.4xlarge

At a glancedb.c6gd.4xlargedb.r6gd.4xlarge
Size16 vCPUs, 32 GiB16 vCPUs, 128 GiB
ProcessorAWS Graviton2AWS Graviton2
Architecturearm64arm64

Key differences

The biggest lead each one has.

Where db.c6gd.4xlarge leads

No clear lead on the measures we compare.

Where db.r6gd.4xlarge leads
Memory (GiB)128 vs 32
4× higher

Specs

6 of 25 specs differ. Those are in bold.

ComputeAll 8 matchdb.c6gd.4xlargedb.r6gd.4xlarge
vCPUs1616
Physical cores1616
Threads per core11
Architecturearm64arm64
ProcessorAWS Graviton2AWS Graviton2
CPU makerAWSAWS
Sustained clock2.5 GHz2.5 GHz
BurstableNoNo
Memory1 of 1 differdb.c6gd.4xlargedb.r6gd.4xlarge
Memory (GiB)32128
Networking1 of 3 differdb.c6gd.4xlargedb.r6gd.4xlarge
NetworkUp to 10 GbpsUp to 10 Gigabit
Network baseline5 Gbps5 Gbps
Network peak10 Gbps10 Gbps
StorageAll 8 matchdb.c6gd.4xlargedb.r6gd.4xlarge
Storage1 x 950 NVMe SSD1 x 950 NVMe SSD
Local disks1 × 950 GB SSD1 × 950 GB SSD
EBS baseline bandwidth4,750 Mbps4,750 Mbps
EBS max bandwidth4,750 Mbps4,750 Mbps
EBS baseline throughput593.75 MB/s593.75 MB/s
EBS max throughput593.75 MB/s593.75 MB/s
EBS baseline IOPS20,00020,000
EBS max IOPS20,00020,000
Instance details3 of 4 differdb.c6gd.4xlargedb.r6gd.4xlarge
Familyc6gdr6gd
CategoryCompute optimizedMemory optimized
Current generationYesYes
Normalization factor9664
Other1 of 1 differdb.c6gd.4xlargedb.r6gd.4xlarge
Hardware Basisc6gd.4xlarger6gd.4xlarge

Keep exploring

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

db.c6gd.4xlargeCompute optimized, c6gd family
db.c6gd.4xlarge prices and specsEvery size in the c6gd family

Compare db.c6gd.4xlarge with

db.m6gd.4xlarge
db.r6gd.4xlargeMemory optimized, r6gd family
db.r6gd.4xlarge prices and specsEvery size in the r6gd family

Compare db.r6gd.4xlarge with

db.r6g.4xlargedb.m6gd.4xlargedb.r6id.4xlargedb.r8gd.4xlarge

Pay the committed rate, with commitment protection

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.