db.m6i.8xlargevsdb.r6i.8xlarge.tpc2.mem4x

db.m6i.8xlarge is 81% cheaper than db.r6i.8xlarge.tpc2.mem4x on demand in US East (N. Virginia), saving $8,806.72 a month.

At a glancedb.m6i.8xlargedb.r6i.8xlarge.tpc2.mem4x
On-demand$2.848/hr81% less$14.912/hr
Lowest rate$1.824/hr83% less1-yr reserved, no upfront$10.737/hr1-yr reserved, no upfront
Size32 vCPUs, 128 GiB32 vCPUs, 1024 GiB
ProcessorIntel Xeon Scalable Ice LakeIntel Xeon Scalable Ice Lake
Architecturex86_64x86_64

Prices in US East (N. Virginia)

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

Optiondb.m6i.8xlargedb.r6i.8xlarge.tpc2.mem4xdb.r6i.8xlarge.tpc2.mem4x vs db.m6i.8xlarge
On-demandPay by the hour$2.848$14.912▲ 424%
1-yr reservedNo upfront36% off$1.82428% off$10.737▲ 489%

Key differences

The biggest lead each one has.

Where db.m6i.8xlarge leads
On-demand price$2.848 vs $14.912 per hour
81% cheaper
Where db.r6i.8xlarge.tpc2.mem4x leads
Memory (GiB)1,024 vs 128
8× higher

Specs

19 of 24 specs differ. Those are in bold.

Compute5 of 8 differdb.m6i.8xlargedb.r6i.8xlarge.tpc2.mem4x
vCPUs3232
Physical cores16–
Threads per core2–
Architecturex86_64x86_64
ProcessorIntel Xeon Scalable Ice LakeIntel Xeon Scalable Ice Lake
CPU makerIntel–
Sustained clock3.5 GHz–
BurstableNo–
Memory1 of 1 differdb.m6i.8xlargedb.r6i.8xlarge.tpc2.mem4x
Memory (GiB)1281,024
Networking3 of 3 differdb.m6i.8xlargedb.r6i.8xlarge.tpc2.mem4x
Network12.5 Gbps50 Gbps
Network baseline12.5 Gbps–
Network peak12.5 Gbps–
Storage6 of 7 differdb.m6i.8xlargedb.r6i.8xlarge.tpc2.mem4x
StorageEBS OnlyEBS 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 details3 of 4 differdb.m6i.8xlargedb.r6i.8xlarge.tpc2.mem4x
Familym6ir6i
CategoryGeneral purposeMemory optimized
Current generationYesYes
Normalization factor–512
Other1 of 1 differdb.m6i.8xlargedb.r6i.8xlarge.tpc2.mem4x
Hardware Basism6i.8xlarge–

On-demand prices by region

Cheapest for db.m6i.8xlarge first. PostgreSQL, USD per hour.

Regiondb.m6i.8xlargedb.r6i.8xlarge.tpc2.mem4xDifference
US East (N. Virginia)Used in summaryus-east-1$2.848$14.912▲ 424%
US East (Ohio)us-east-2$2.848$14.912▲ 424%
US West (Oregon)us-west-2$2.848$14.912▲ 424%
EU (Stockholm)eu-north-1$2.992$15.68▲ 424%
Canada (Central)ca-central-1$3.136$16.384▲ 422%
Canada West (Calgary)ca-west-1$3.136$16.384▲ 422%
EU (Ireland)eu-west-1$3.152$16.512▲ 424%
Europe (Spain)eu-south-2$3.152$16.471▲ 423%
US West (N. California)us-west-1$3.248$16.448▲ 406%
EU (London)eu-west-2$3.296$17.408▲ 428%
EU (Paris)eu-west-3$3.296$17.344▲ 426%
EU (Milan)eu-south-1$3.308$17.344▲ 424%
Israel (Tel Aviv)il-central-1$3.31$17.281▲ 422%
Middle East (UAE)me-central-1$3.328$18.176▲ 446%
Asia Pacific (Malaysia)ap-southeast-5$3.36$16.32▲ 386%
AWS GovCloud (US-East)us-gov-east-1$3.36$17.952▲ 434%
AWS GovCloud (US-West)us-gov-west-1$3.36$17.92▲ 433%
EU (Frankfurt)eu-central-1$3.392$18.048▲ 432%
Middle East (Bahrain)me-south-1$3.472$18.176▲ 424%
Europe (Zurich)eu-central-2$3.728$19.804▲ 431%
South America (Sao Paulo)sa-east-1$3.728$31.104▲ 734%
Africa (Cape Town)af-south-1$3.744$19.648▲ 425%
Asia Pacific (Jakarta)ap-southeast-3$3.952$17.684▲ 347%
Asia Pacific (Seoul)ap-northeast-2$3.952$17.728▲ 349%
Asia Pacific (Singapore)ap-southeast-1$3.952$17.728▲ 349%
Asia Pacific (Sydney)ap-southeast-2$3.952$17.664▲ 347%
Asia Pacific (Tokyo)ap-northeast-1$3.952$17.728▲ 349%
Asia Pacific (Hyderabad)ap-south-2$4.048$16.832▲ 316%
Asia Pacific (Mumbai)ap-south-1$4.048$16.832▲ 316%
Asia Pacific (Osaka)ap-northeast-3$4.144$17.728▲ 328%
Asia Pacific (Hong Kong)ap-east-1$4.347$19.501▲ 349%

Keep exploring

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

db.m6i.8xlargeGeneral purpose, m6i family
db.m6i.8xlarge prices and specsEvery size in the m6i family

Compare db.m6i.8xlarge with

db.m6g.8xlargedb.r6i.8xlargedb.r6i.8xlarge.tpc2.mem3xdb.m6id.8xlargedb.m6idn.8xlargedb.m6in.8xlargedb.m5.8xlargedb.m7i.8xlarge
db.r6i.8xlarge.tpc2.mem4xMemory optimized, r6i family
db.r6i.8xlarge.tpc2.mem4x prices and specsEvery size in the r6i family

Compare db.r6i.8xlarge.tpc2.mem4x with

db.r6g.8xlargedb.r6id.8xlargedb.r6idn.8xlargedb.r6in.8xlargedb.r5.8xlargedb.r5.8xlarge.tpc2.mem3xdb.r7i.8xlargedb.r7i.8xlarge.tpc2.mem2xdb.r7i.8xlarge.tpc2.mem3x

Pay the committed rate, with commitment protection

The best committed rate on these two is 28–36% 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.