db.r6i.8xlargevsdb.r7i.8xlarge.tpc2.mem2x

db.r6i.8xlarge is 50% cheaper than db.r7i.8xlarge.tpc2.mem2x on demand in US East (N. Virginia), saving $2,920.00 a month.

At a glancedb.r6i.8xlargedb.r7i.8xlarge.tpc2.mem2x
On-demand$4.00/hr50% less$8.00/hr
Lowest rate$2.31/hr57% less1-yr reserved, no upfront$5.36/hr1-yr reserved, no upfront

Prices in US East (N. Virginia)

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

Optiondb.r6i.8xlargedb.r7i.8xlarge.tpc2.mem2xdb.r7i.8xlarge.tpc2.mem2x vs db.r6i.8xlarge
On-demandPay by the hour$4.00$8.00▲ 100%
1-yr reservedNo upfront42% off$2.3133% off$5.36▲ 132%
1-yr savings planHourly commitment—20% off$6.40—

Key differences

The biggest lead each one has.

Where db.r6i.8xlarge leads
On-demand price$4.00 vs $8.00 per hour
50% cheaper
Where db.r7i.8xlarge.tpc2.mem2x leads

No clear lead on the measures we compare.

Specs

24 of 24 specs differ. Those are in bold.

Compute8 of 8 differdb.r6i.8xlargedb.r7i.8xlarge.tpc2.mem2x
vCPUs32–
Physical cores16–
Threads per core2–
Architecturex86_64–
ProcessorIntel Xeon Scalable Ice Lake–
CPU makerIntel–
Sustained clock3.5 GHz–
BurstableNo–
Memory1 of 1 differdb.r6i.8xlargedb.r7i.8xlarge.tpc2.mem2x
Memory (GiB)256–
Networking3 of 3 differdb.r6i.8xlargedb.r7i.8xlarge.tpc2.mem2x
Network12.5 Gbps–
Network baseline12.5 Gbps–
Network peak12.5 Gbps–
Storage7 of 7 differdb.r6i.8xlargedb.r7i.8xlarge.tpc2.mem2x
StorageEBS Only–
EBS baseline bandwidth10,000 Mbps–
EBS max bandwidth10,000 Mbps–
EBS baseline throughput1,250 MB/s–
EBS max throughput1,250 MB/s–
EBS baseline IOPS40,000–
EBS max IOPS40,000–
Instance details4 of 4 differdb.r6i.8xlargedb.r7i.8xlarge.tpc2.mem2x
Familyr6ir7i
CategoryMemory optimized–
Current generationYes–
Normalization factor–128
Other1 of 1 differdb.r6i.8xlargedb.r7i.8xlarge.tpc2.mem2x
Hardware Basisr6i.8xlarge–

On-demand prices by region

Cheapest for db.r6i.8xlarge first. PostgreSQL, USD per hour.

Regiondb.r6i.8xlargedb.r7i.8xlarge.tpc2.mem2xDifference
US East (N. Virginia)Used in summaryus-east-1$4.00$8.00▲ 100%
US East (Ohio)us-east-2$4.00$8.00▲ 100%
US West (Oregon)us-west-2$4.00$8.00▲ 100%
Asia Pacific (Malaysia)ap-southeast-5$4.08$8.16▲ 100%
Asia Pacific (Thailand)ap-southeast-7$4.08$8.16▲ 100%
EU (Stockholm)eu-north-1$4.112$8.224▲ 100%
Mexico (Central)mx-central-1$4.208$8.416▲ 100%
Asia Pacific (Taipei)ap-east-2$4.32$8.64▲ 100%
Canada (Central)ca-central-1$4.325$8.64▲ 100%
EU (Ireland)eu-west-1$4.48$8.96▲ 100%
US West (N. California)us-west-1$4.48$8.96▲ 100%
Asia Pacific (Mumbai)ap-south-1$4.56$9.12▲ 100%
EU (London)eu-west-2$4.704$9.408▲ 100%
EU (Milan)eu-south-1$4.704$9.408▲ 100%
EU (Paris)eu-west-3$4.704$9.408▲ 100%
Asia Pacific (Seoul)ap-northeast-2$4.80$9.60▲ 100%
Asia Pacific (Singapore)ap-southeast-1$4.80$9.60▲ 100%
Asia Pacific (Sydney)ap-southeast-2$4.80$9.60▲ 100%
Asia Pacific (Tokyo)ap-northeast-1$4.80$9.60▲ 100%
EU (Frankfurt)eu-central-1$4.88$9.76▲ 100%
AWS GovCloud (US-East)us-gov-east-1$5.60$9.60▲ 71%
AWS GovCloud (US-West)us-gov-west-1$5.60$9.60▲ 71%
South America (Sao Paulo)sa-east-1$8.384$12.72▲ 52%

Keep exploring

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

db.r6i.8xlargeMemory optimized, r6i family
db.r6i.8xlarge prices and specsEvery size in the r6i family

Compare db.r6i.8xlarge with

db.m6i.8xlargedb.r6g.8xlargedb.r6id.8xlargedb.r6idn.8xlargedb.r6in.8xlargedb.r5.8xlargedb.r5.8xlarge.tpc2.mem3xdb.r7i.8xlargedb.r7i.8xlarge.tpc2.mem3x
db.r7i.8xlarge.tpc2.mem2xr7i family
db.r7i.8xlarge.tpc2.mem2x prices and specsEvery size in the r7i family

Compare db.r7i.8xlarge.tpc2.mem2x with

db.r7g.8xlargedb.m7i.8xlargedb.r6i.8xlarge.tpc2.mem3xdb.r6i.8xlarge.tpc2.mem4xdb.r8i.8xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 33–42% 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.