db.m6i.16xlargevsdb.r6i.16xlarge
db.m6i.16xlarge is 29% cheaper than db.r6i.16xlarge on demand in US East (N. Virginia), saving $1,681.92 a month.
| At a glance | db.m6i.16xlarge | db.r6i.16xlarge |
|---|---|---|
| On-demand | $5.696/hr29% less | $8.00/hr |
| Lowest rate | $3.648/hr21% less1-yr reserved, no upfront | $4.621/hr1-yr reserved, no upfront |
| Size | 64 vCPUs, 256 GiB | 64 vCPUs, 512 GiB |
Prices in US East (N. Virginia)
“Off” is the discount against each type’s own on-demand price. PostgreSQL, USD per hour.
| Option | db.m6i.16xlarge | db.r6i.16xlarge | db.r6i.16xlarge vs db.m6i.16xlarge |
|---|---|---|---|
| On-demandPay by the hour | $5.696 | $8.00 | ▲ 40% |
| 1-yr reservedNo upfront | 36% off$3.648 | 42% off$4.621 | ▲ 27% |
Key differences
The biggest lead each one has.
Where db.m6i.16xlarge leads
On-demand price$5.696 vs $8.00 per hour
29% cheaperWhere db.r6i.16xlarge leads
Memory (GiB)512 vs 256
2× higherSpecs
9 of 24 specs differ. Those are in bold.
| Compute2 of 8 differ | db.m6i.16xlarge | db.r6i.16xlarge |
|---|---|---|
| vCPUs | 64 | 64 |
| Physical cores | 32 | 32 |
| Threads per core | 2 | 2 |
| Architecture | – | x86_64 |
| Processor | – | Intel Xeon Scalable Ice Lake |
| CPU maker | Intel | Intel |
| Sustained clock | 3.5 GHz | 3.5 GHz |
| Burstable | No | No |
| Memory1 of 1 differ | db.m6i.16xlarge | db.r6i.16xlarge |
|---|---|---|
| Memory (GiB) | 256 | 512 |
| Networking1 of 3 differ | db.m6i.16xlarge | db.r6i.16xlarge |
|---|---|---|
| Network | – | 25 Gbps |
| Network baseline | 25 Gbps | 25 Gbps |
| Network peak | 25 Gbps | 25 Gbps |
| Storage1 of 7 differ | db.m6i.16xlarge | db.r6i.16xlarge |
|---|---|---|
| Storage | – | EBS Only |
| EBS baseline bandwidth | 20,000 Mbps | 20,000 Mbps |
| EBS max bandwidth | 20,000 Mbps | 20,000 Mbps |
| EBS baseline throughput | 2,500 MB/s | 2,500 MB/s |
| EBS max throughput | 2,500 MB/s | 2,500 MB/s |
| EBS baseline IOPS | 80,000 | 80,000 |
| EBS max IOPS | 80,000 | 80,000 |
| Instance details3 of 4 differ | db.m6i.16xlarge | db.r6i.16xlarge |
|---|---|---|
| Family | m6i | r6i |
| Category | – | Memory optimized |
| Current generation | – | Yes |
| Normalization factor | 128 | 128 |
| Other1 of 1 differ | db.m6i.16xlarge | db.r6i.16xlarge |
|---|---|---|
| Hardware Basis | m6i.16xlarge | r6i.16xlarge |
On-demand prices by region
Cheapest for db.m6i.16xlarge first. PostgreSQL, USD per hour.
| Region | db.m6i.16xlarge | db.r6i.16xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $5.696 | $8.00 | ▲ 40% |
| US East (Ohio)us-east-2 | $5.696 | $8.00 | ▲ 40% |
| US West (Oregon)us-west-2 | $5.696 | $8.00 | ▲ 40% |
| EU (Stockholm)eu-north-1 | $5.984 | $8.224 | ▲ 37% |
| Mexico (Central)mx-central-1 | $5.984 | $8.416 | ▲ 41% |
| Canada (Central)ca-central-1 | $6.272 | $8.65 | ▲ 38% |
| Canada West (Calgary)ca-west-1 | $6.272 | $8.65 | ▲ 38% |
| EU (Ireland)eu-west-1 | $6.304 | $8.96 | ▲ 42% |
| Europe (Spain)eu-south-2 | $6.304 | $13.312 | ▲ 111% |
| US West (N. California)us-west-1 | $6.496 | $8.96 | ▲ 38% |
| EU (London)eu-west-2 | $6.592 | $9.408 | ▲ 43% |
| EU (Paris)eu-west-3 | $6.592 | $9.408 | ▲ 43% |
| EU (Milan)eu-south-1 | $6.616 | $9.408 | ▲ 42% |
| Israel (Tel Aviv)il-central-1 | $6.619 | $9.41 | ▲ 42% |
| Middle East (UAE)me-central-1 | $6.656 | $14.643 | ▲ 120% |
| Asia Pacific (Malaysia)ap-southeast-5 | $6.72 | $8.16 | ▲ 21% |
| Asia Pacific (Thailand)ap-southeast-7 | $6.72 | $8.16 | ▲ 21% |
| AWS GovCloud (US-East)us-gov-east-1 | $6.72 | $11.20 | ▲ 67% |
| AWS GovCloud (US-West)us-gov-west-1 | $6.72 | $11.20 | ▲ 67% |
| EU (Frankfurt)eu-central-1 | $6.784 | $9.76 | ▲ 44% |
| Middle East (Bahrain)me-south-1 | $6.944 | $9.856 | ▲ 42% |
| Asia Pacific (Taipei)ap-east-2 | $7.104 | $8.64 | ▲ 22% |
| Europe (Zurich)eu-central-2 | $7.456 | $16.016 | ▲ 115% |
| South America (Sao Paulo)sa-east-1 | $7.456 | $16.768 | ▲ 125% |
| Africa (Cape Town)af-south-1 | $7.488 | $10.656 | ▲ 42% |
| Asia Pacific (Jakarta)ap-southeast-3 | $7.904 | $14.56 | ▲ 84% |
| Asia Pacific (Seoul)ap-northeast-2 | $7.904 | $9.60 | ▲ 21% |
| Asia Pacific (Singapore)ap-southeast-1 | $7.904 | $9.60 | ▲ 21% |
| Asia Pacific (Sydney)ap-southeast-2 | $7.904 | $9.60 | ▲ 21% |
| Asia Pacific (Tokyo)ap-northeast-1 | $7.904 | $9.60 | ▲ 21% |
| Asia Pacific (Hyderabad)ap-south-2 | $8.096 | $13.728 | ▲ 70% |
| Asia Pacific (Mumbai)ap-south-1 | $8.096 | $9.12 | ▲ 13% |
| Asia Pacific (Osaka)ap-northeast-3 | $8.288 | $9.60 | ▲ 16% |
| Asia Pacific (New Zealand)ap-southeast-6 | $8.301 | $10.08 | ▲ 21% |
| Asia Pacific (Hong Kong)ap-east-1 | $8.694 | $10.56 | ▲ 21% |
Keep exploring
Each type’s own page, and how it compares with others.
db.m6i.16xlarge
db.m6i.16xlarge prices and specsEvery size in the m6i familyCompare db.m6i.16xlarge with
db.r6i.16xlarge
db.r6i.16xlarge prices and specsEvery size in the r6i familyCompare db.r6i.16xlarge with
AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.