db.r5.4xlargevsdb.r6i.4xlarge.tpc2.mem8x

Key differences

The biggest lead each one has.

Where db.r5.4xlarge leads

No clear lead on the measures we compare.

Where db.r6i.4xlarge.tpc2.mem8x leads

No clear lead on the measures we compare.

Specs

20 of 20 specs differ. Those are in bold.

Compute6 of 6 differdb.r5.4xlargedb.r6i.4xlarge.tpc2.mem8x
vCPUs16–
Physical cores8–
Threads per core2–
CPU makerIntel–
Sustained clock3.1 GHz–
BurstableNo–
Memory1 of 1 differdb.r5.4xlargedb.r6i.4xlarge.tpc2.mem8x
Memory (GiB)128–
Networking2 of 2 differdb.r5.4xlargedb.r6i.4xlarge.tpc2.mem8x
Network baseline5 Gbps–
Network peak10 Gbps–
Storage7 of 7 differdb.r5.4xlargedb.r6i.4xlarge.tpc2.mem8x
StorageEBS Only–
EBS baseline bandwidth4,750 Mbps–
EBS max bandwidth4,750 Mbps–
EBS baseline throughput593.75 MB/s–
EBS max throughput593.75 MB/s–
EBS baseline IOPS18,750–
EBS max IOPS18,750–
Instance details3 of 3 differdb.r5.4xlargedb.r6i.4xlarge.tpc2.mem8x
Familyr5r6i
CategoryMemory optimized–
Normalization factor32256
Other1 of 1 differdb.r5.4xlargedb.r6i.4xlarge.tpc2.mem8x
Hardware Basisr5.4xlarge–

Keep exploring

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

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