db.r5.24xlargevsdb.r5b.24xlarge
db.r5.24xlarge is 16% cheaper than db.r5b.24xlarge on demand in US East (N. Virginia), saving $1,611.84 a month.
| At a glance | db.r5.24xlarge | db.r5b.24xlarge |
|---|---|---|
| On-demand | $12.00/hr16% less | $14.208/hr |
| Lowest rate | $6.93/hr16% less1-yr reserved, no upfront | $8.229/hr1-yr reserved, no upfront |
| Size | 96 vCPUs, 768 GiB | 96 vCPUs, 768 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.r5.24xlarge | db.r5b.24xlarge | db.r5b.24xlarge vs db.r5.24xlarge |
|---|---|---|---|
| On-demandPay by the hour | $12.00 | $14.208 | ▲ 18% |
| 1-yr reservedNo upfront | 42% off$6.93 | 42% off$8.229 | ▲ 19% |
Key differences
The biggest lead each one has.
Where db.r5.24xlarge leads
On-demand price$12.00 vs $14.208 per hour
16% cheaperWhere db.r5b.24xlarge leads
EBS baseline IOPS260,000 vs 80,000
3.3× higherSpecs
15 of 26 specs differ. Those are in bold.
| Compute3 of 9 differ | db.r5.24xlarge | db.r5b.24xlarge |
|---|---|---|
| vCPUs | 96 | 96 |
| Physical cores | 48 | 48 |
| Threads per core | 2 | 2 |
| Architecture | – | x86_64 |
| Processor | – | Intel Xeon Platinum 8000 series |
| CPU maker | Intel | Intel |
| Clock speed | – | Up to 3.1 GHz |
| Sustained clock | 3.1 GHz | 3.1 GHz |
| Burstable | No | No |
| MemoryAll 1 match | db.r5.24xlarge | db.r5b.24xlarge |
|---|---|---|
| Memory (GiB) | 768 | 768 |
| Networking1 of 3 differ | db.r5.24xlarge | db.r5b.24xlarge |
|---|---|---|
| Network | – | 25 Gigabit |
| Network baseline | 25 Gbps | 25 Gbps |
| Network peak | 25 Gbps | 25 Gbps |
| Storage7 of 8 differ | db.r5.24xlarge | db.r5b.24xlarge |
|---|---|---|
| Storage | EBS Only | EBS Only |
| EBS throughput | – | 7500 Mbps |
| EBS baseline bandwidth | 19,000 Mbps | 60,000 Mbps |
| EBS max bandwidth | 19,000 Mbps | 60,000 Mbps |
| EBS baseline throughput | 2,375 MB/s | 7,500 MB/s |
| EBS max throughput | 2,375 MB/s | 7,500 MB/s |
| EBS baseline IOPS | 80,000 | 260,000 |
| EBS max IOPS | 80,000 | 260,000 |
| Instance details3 of 4 differ | db.r5.24xlarge | db.r5b.24xlarge |
|---|---|---|
| Family | r5 | r5b |
| Category | Memory optimized | Memory optimized |
| Current generation | – | Yes |
| Normalization factor | – | 192 |
| Other1 of 1 differ | db.r5.24xlarge | db.r5b.24xlarge |
|---|---|---|
| Hardware Basis | r5.24xlarge | r5b.24xlarge |
On-demand prices by region
Cheapest for db.r5.24xlarge first. PostgreSQL, USD per hour.
| Region | db.r5.24xlarge | db.r5b.24xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $12.00 | $14.208 | ▲ 18% |
| US East (Ohio)us-east-2 | $12.00 | $14.208 | ▲ 18% |
| US West (Oregon)us-west-2 | $12.00 | $14.208 | ▲ 18% |
| EU (Stockholm)eu-north-1 | $12.343 | $14.025 | ▲ 14% |
| Canada (Central)ca-central-1 | $12.972 | $14.474 | ▲ 12% |
| EU (Ireland)eu-west-1 | $13.44 | $14.83 | ▲ 10% |
| EU (London)eu-west-2 | $14.112 | $15.54 | ▲ 10% |
| EU (Milan)eu-south-1 | $14.112 | $15.54 | ▲ 10% |
| Asia Pacific (Seoul)ap-northeast-2 | $14.40 | $15.806 | ▲ 10% |
| Asia Pacific (Singapore)ap-southeast-1 | $14.40 | $16.848 | ▲ 17% |
| Asia Pacific (Sydney)ap-southeast-2 | $14.40 | $16.073 | ▲ 12% |
| Asia Pacific (Tokyo)ap-northeast-1 | $14.40 | $17.136 | ▲ 19% |
| EU (Frankfurt)eu-central-1 | $14.64 | $17.146 | ▲ 17% |
| South America (Sao Paulo)sa-east-1 | $25.128 | $21.046 | ▼ 16% |
Keep exploring
Each type’s own page, and how it compares with others.
AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.