r5dn.12xlarge
Memory optimized · r5dn series · Intel Xeon Platinum 8259 (Cascade Lake)
- vCPU
- 48
- Memory
- 384 GiB
- Linux / hour
- $4.01
- Per month
- $2,926
- Per vCPU-hour
- $0.0835
- Per GiB-hour
- $0.0104
Analysis
The r5dn.12xlarge is a memory optimized instance in the r5dn series with 48 vCPUs and 384 GiB of memory on Intel Xeon Platinum 8259 (Cascade Lake) (up to 3.1 GHz), which makes it memory-heavy at 8 GiB of memory per vCPU.
Within the same generation and size, the r5a.12xlarge on AMD EPYC 7571 costs $2.71/hour, 32% less ($946 a month). The other variants are the r5.12xlarge at $3.02, the r5ad.12xlarge at $3.14 and the r5d.12xlarge at $3.46.
Running it in N. Virginia instead of Sydney saves $648 a month per instance: $4.01/hour against $4.90/hour, a 22% spread. It is not offered in Canada Central, São Paulo, London and Mumbai, so plan around that if you need a presence there.
On demand it costs $4.01/hour in US East (N. Virginia), $2,926 a month if left running, which puts it mid-table for memory optimized types at the 57th percentile per vCPU ($0.0835 per vCPU-hour) and the 73rd percentile per GiB ($0.0104 per GiB-hour).
It has local instance storage (2 x 900 GB NVMe SSD), which is fast but lost when the instance stops. Network: 50 Gigabit.
Looking beyond its own line, 23 of 40 current types with 48 vCPUs and similar memory are cheaper. The cheapest of those is the r6g.12xlarge on AWS Graviton2 at $2.42/hour.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $4.01 | $6.22 | $2.52 | $1.63 | |
| Ohio us-east-2 | $4.01 | $6.22 | $2.52 | $1.63 | |
| Oregon us-west-2 | $4.01 | $6.22 | $2.52 | $1.63 | |
| Ireland eu-west-1 | $4.46 | $6.67 | $2.81 | $1.87 | |
| Frankfurt eu-central-1 | $4.78 | $6.98 | $3.01 | $1.99 | |
| Singapore ap-southeast-1 | $4.80 | $7.01 | $3.02 | $1.97 | |
| Sydney ap-southeast-2 | $4.90 | $7.10 | $3.08 | $2.00 | |
| Tokyo ap-northeast-1 | $4.87 | $7.08 | $3.07 | $2.05 |
Shared tenancy, no pre-installed software. Reserved rates are standard, no upfront, per hour. Prices as of 2026-11-04.
Same shape, other types
| Type | vCPU | Memory | $/hour | vs r5dn.12xlarge |
|---|---|---|---|---|
| r6g.12xlarge AWS Graviton2 Processor | 48 | 384 GiB | $2.42 | -40% |
| r7g.12xlarge AWS Graviton3 Processor | 48 | 384 GiB | $2.57 | -36% |
| r5a.12xlarge AMD EPYC 7571 | 48 | 384 GiB | $2.71 | -32% |
| r6a.12xlarge AMD EPYC 7R13 Processor | 48 | 384 GiB | $2.72 | -32% |
| r6gd.12xlarge AWS Graviton2 Processor | 48 | 384 GiB | $2.76 | -31% |
| r8g.12xlarge AWS Graviton4 Processor | 48 | 384 GiB | $2.83 | -29% |
Cost calculator
Specs
| vCPU | 48 |
|---|---|
| Memory | 384 GiB (8.0 per vCPU) |
| Processor | Intel Xeon Platinum 8259 (Cascade Lake) |
| Clock | 3.1 GHz |
| Storage | 2 x 900 GB NVMe SSD |
| Network | 50 Gigabit |
r5dn sizes
| r5dn.large | 2 vCPU | $0.1670 |
| r5dn.xlarge | 4 vCPU | $0.3340 |
| r5dn.2xlarge | 8 vCPU | $0.6680 |
| r5dn.4xlarge | 16 vCPU | $1.34 |
| r5dn.8xlarge | 32 vCPU | $2.67 |
| r5dn.12xlarge | 48 vCPU | $4.01 |
| r5dn.16xlarge | 64 vCPU | $5.34 |
| r5dn.24xlarge | 96 vCPU | $8.02 |