db.r5.4xlarge.tpc2.mem2xvsdb.r5b.4xlarge
db.r5b.4xlarge is 36% cheaper than db.r5.4xlarge.tpc2.mem2x on demand in US East (N. Virginia), saving $992.80 a month.
| At a glance | db.r5.4xlarge.tpc2.mem2x | db.r5b.4xlarge |
|---|---|---|
| On-demand | $3.728/hr | $2.368/hr36% less |
| Lowest rate | $2.156/hr1-yr reserved, no upfront | $1.372/hr36% less1-yr reserved, no upfront |
| Size | 16 vCPUs, 256 GiB | 16 vCPUs, 128 GiB |
| Processor | Intel Xeon Platinum 8175 | Intel Xeon Platinum 8000 series |
| Architecture | x86_64 | x86_64 |
Prices in US East (N. Virginia)
“Off” is the discount against each type’s own on-demand price. Oracle Enterprise BYOL, USD per hour.
| Option | db.r5.4xlarge.tpc2.mem2x | db.r5b.4xlarge | db.r5b.4xlarge vs db.r5.4xlarge.tpc2.mem2x |
|---|---|---|---|
| On-demandPay by the hour | $3.728 | $2.368 | ▼ 36% |
| 1-yr reservedNo upfront | 42% off$2.156 | 42% off$1.372 | ▼ 36% |
Key differences
The biggest lead each one has.
Where db.r5.4xlarge.tpc2.mem2x leads
Memory (GiB)256 vs 128
2× higherWhere db.r5b.4xlarge leads
On-demand price$2.368 vs $3.728 per hour
36% cheaperSpecs
20 of 26 specs differ. Those are in bold.
| Compute6 of 9 differ | db.r5.4xlarge.tpc2.mem2x | db.r5b.4xlarge |
|---|---|---|
| vCPUs | 16 | 16 |
| Physical cores | – | 8 |
| Threads per core | – | 2 |
| Architecture | x86_64 | x86_64 |
| Processor | Intel Xeon Platinum 8175 | Intel Xeon Platinum 8000 series |
| CPU maker | – | Intel |
| Clock speed | Up to 3.1 GHz | Up to 3.1 GHz |
| Sustained clock | – | 3.1 GHz |
| Burstable | – | No |
| Memory1 of 1 differ | db.r5.4xlarge.tpc2.mem2x | db.r5b.4xlarge |
|---|---|---|
| Memory (GiB) | 256 | 128 |
| Networking3 of 3 differ | db.r5.4xlarge.tpc2.mem2x | db.r5b.4xlarge |
|---|---|---|
| Network | 10 Gigabit | Up to 10 Gigabit |
| Network baseline | – | 5 Gbps |
| Network peak | – | 10 Gbps |
| Storage7 of 8 differ | db.r5.4xlarge.tpc2.mem2x | db.r5b.4xlarge |
|---|---|---|
| Storage | EBS Only | EBS Only |
| EBS throughput | – | 1250 Mbps |
| EBS baseline bandwidth | – | 10,000 Mbps |
| EBS max bandwidth | – | 10,000 Mbps |
| EBS baseline throughput | – | 1,250 MB/s |
| EBS max throughput | – | 1,250 MB/s |
| EBS baseline IOPS | – | 43,333 |
| EBS max IOPS | – | 43,333 |
| Instance details2 of 4 differ | db.r5.4xlarge.tpc2.mem2x | db.r5b.4xlarge |
|---|---|---|
| Family | r5 | r5b |
| Category | Memory optimized | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 128 | 64 |
| Other1 of 1 differ | db.r5.4xlarge.tpc2.mem2x | db.r5b.4xlarge |
|---|---|---|
| Hardware Basis | – | r5b.4xlarge |
On-demand prices by region
Cheapest for db.r5.4xlarge.tpc2.mem2x first. Oracle Enterprise BYOL, USD per hour.
| Region | db.r5.4xlarge.tpc2.mem2x | db.r5b.4xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $3.728 | $2.368 | ▼ 36% |
| US East (Ohio)us-east-2 | $3.728 | $2.368 | ▼ 36% |
| US West (Oregon)us-west-2 | $3.728 | $2.368 | ▼ 36% |
| EU (Stockholm)eu-north-1 | $3.918 | $2.338 | ▼ 40% |
| Canada (Central)ca-central-1 | $4.096 | $2.412 | ▼ 41% |
| EU (Ireland)eu-west-1 | $4.128 | $2.472 | ▼ 40% |
| EU (Milan)eu-south-1 | $4.334 | $2.59 | ▼ 40% |
| EU (London)eu-west-2 | $4.352 | $2.59 | ▼ 40% |
| Asia Pacific (Sydney)ap-southeast-2 | $4.424 | $2.679 | ▼ 39% |
| Asia Pacific (Seoul)ap-northeast-2 | $4.432 | $2.634 | ▼ 41% |
| Asia Pacific (Singapore)ap-southeast-1 | $4.432 | $2.808 | ▼ 37% |
| Asia Pacific (Tokyo)ap-northeast-1 | $4.432 | $2.856 | ▼ 36% |
| EU (Frankfurt)eu-central-1 | $4.512 | $2.858 | ▼ 37% |
| South America (Sao Paulo)sa-east-1 | $7.776 | $3.508 | ▼ 55% |
Keep exploring
Each type’s own page, and how it compares with others.
db.r5.4xlarge.tpc2.mem2x
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db.r5b.4xlarge
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AWS RDS Oracle Enterprise BYOL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.