db.m5.8xlargevsdb.m6i.8xlarge

db.m5.8xlarge and db.m6i.8xlarge cost the same on demand in US East (N. Virginia), $2.848 per hour.

At a glancedb.m5.8xlargedb.m6i.8xlarge
On-demand$2.848/hr$2.848/hr
Lowest rate$1.824/hr1-yr reserved, no upfront$1.824/hr1-yr reserved, no upfront
Size32 vCPUs, 128 GiB32 vCPUs, 128 GiB

Prices in US East (N. Virginia)

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

Optiondb.m5.8xlargedb.m6i.8xlargedb.m6i.8xlarge vs db.m5.8xlarge
On-demandPay by the hour$2.848$2.848Same
1-yr reservedNo upfront36% off$1.82436% off$1.824Same

Key differences

The biggest lead each one has.

Where db.m5.8xlarge leads

No clear lead on the measures we compare.

Where db.m6i.8xlarge leads
EBS baseline bandwidth10,000 Mbps vs 6,800 Mbps
47% higher
Network baseline12.5 Gbps vs 10 Gbps
25% higher
Sustained clock3.5 GHz vs 3.1 GHz
13% higher

Specs

16 of 24 specs differ. Those are in bold.

Compute3 of 8 differdb.m5.8xlargedb.m6i.8xlarge
vCPUs3232
Physical cores1616
Threads per core22
Architecture–x86_64
Processor–Intel Xeon Scalable Ice Lake
CPU makerIntelIntel
Sustained clock3.1 GHz3.5 GHz
BurstableNoNo
MemoryAll 1 matchdb.m5.8xlargedb.m6i.8xlarge
Memory (GiB)128128
Networking3 of 3 differdb.m5.8xlargedb.m6i.8xlarge
Network–12.5 Gbps
Network baseline10 Gbps12.5 Gbps
Network peak10 Gbps12.5 Gbps
Storage6 of 7 differdb.m5.8xlargedb.m6i.8xlarge
StorageEBS OnlyEBS Only
EBS baseline bandwidth6,800 Mbps10,000 Mbps
EBS max bandwidth6,800 Mbps10,000 Mbps
EBS baseline throughput850 MB/s1,250 MB/s
EBS max throughput850 MB/s1,250 MB/s
EBS baseline IOPS30,00040,000
EBS max IOPS30,00040,000
Instance details3 of 4 differdb.m5.8xlargedb.m6i.8xlarge
Familym5m6i
CategoryGeneral purposeGeneral purpose
Current generation–Yes
Normalization factor64–
Other1 of 1 differdb.m5.8xlargedb.m6i.8xlarge
Hardware Basism5.8xlargem6i.8xlarge

On-demand prices by region

Cheapest for db.m5.8xlarge first. PostgreSQL, USD per hour.

Regiondb.m5.8xlargedb.m6i.8xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$2.848$2.848Same
US East (Ohio)us-east-2$2.848$2.848Same
US West (Oregon)us-west-2$2.848$2.848Same
EU (Stockholm)eu-north-1$2.994$2.992Same
Canada (Central)ca-central-1$3.136$3.136Same
EU (Ireland)eu-west-1$3.152$3.152Same
Europe (Spain)eu-south-2$3.152$3.152Same
US West (N. California)us-west-1$3.248$3.248Same
EU (London)eu-west-2$3.296$3.296Same
EU (Paris)eu-west-3$3.296$3.296Same
EU (Milan)eu-south-1$3.31$3.308Same
Israel (Tel Aviv)il-central-1$3.31$3.31Same
EU (Frankfurt)eu-central-1$3.392$3.392Same
AWS GovCloud (US-East)us-gov-east-1$3.41$3.36▼ 1%
AWS GovCloud (US-West)us-gov-west-1$3.41$3.36▼ 1%
Middle East (Bahrain)me-south-1$3.468$3.472Same
Middle East (UAE)me-central-1$3.472$3.328▼ 4%
South America (Sao Paulo)sa-east-1$3.728$3.728Same
Europe (Zurich)eu-central-2$3.731$3.728Same
Africa (Cape Town)af-south-1$3.751$3.744Same
Asia Pacific (Jakarta)ap-southeast-3$3.952$3.952Same
Asia Pacific (Seoul)ap-northeast-2$3.952$3.952Same
Asia Pacific (Singapore)ap-southeast-1$3.952$3.952Same
Asia Pacific (Sydney)ap-southeast-2$3.952$3.952Same
Asia Pacific (Tokyo)ap-northeast-1$3.952$3.952Same
Asia Pacific (Hyderabad)ap-south-2$4.048$4.048Same
Asia Pacific (Mumbai)ap-south-1$4.048$4.048Same
Asia Pacific (Osaka)ap-northeast-3$4.147$4.144Same
Asia Pacific (Hong Kong)ap-east-1$4.347$4.347Same

Keep exploring

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

db.m5.8xlargeGeneral purpose, m5 family
db.m5.8xlarge prices and specsEvery size in the m5 family

Compare db.m5.8xlarge with

db.m5d.8xlargedb.r5.8xlargedb.r5.8xlarge.tpc2.mem3x
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.r6i.8xlarge.tpc2.mem4xdb.m6id.8xlargedb.m6idn.8xlargedb.m6in.8xlargedb.m7i.8xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 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.