r5dn.4xlarge
Memory optimized · r5dn series · Intel Xeon Platinum 8259 (Cascade Lake)
- vCPU
- 16
- Memory
- 128 GiB
- Linux / hour
- $1.34
- Per month
- $975
- Per vCPU-hour
- $0.0835
- Per GiB-hour
- $0.0104
Analysis
The r5dn.4xlarge is a memory optimized instance in the r5dn series with 16 vCPUs and 128 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.4xlarge on AMD EPYC 7571 costs $0.9040/hour, 32% less ($315 a month). The other variants are the r5.4xlarge at $1.01, the r5ad.4xlarge at $1.05 and the r5d.4xlarge at $1.15.
Running it in N. Virginia instead of Sydney saves $216 a month per instance: $1.34/hour against $1.63/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 $1.34/hour in US East (N. Virginia), $975 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).
Looking beyond its own line, 26 of 42 current types with 16 vCPUs and similar memory are cheaper. The cheapest of those is the r6g.4xlarge on AWS Graviton2 at $0.8064/hour.
It has local instance storage (2 x 300 GB NVMe SSD), which is fast but lost when the instance stops. Network: Up to 25 Gigabit.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $1.34 | $2.07 | $0.8420 | $0.5440 | |
| Ohio us-east-2 | $1.34 | $2.07 | $0.8420 | $0.5440 | |
| Oregon us-west-2 | $1.34 | $2.07 | $0.8420 | $0.5440 | |
| Ireland eu-west-1 | $1.49 | $2.22 | $0.9370 | $0.6220 | |
| Frankfurt eu-central-1 | $1.59 | $2.33 | $1.00 | $0.6640 | |
| Singapore ap-southeast-1 | $1.60 | $2.34 | $1.01 | $0.6570 | |
| Sydney ap-southeast-2 | $1.63 | $2.37 | $1.03 | $0.6680 | |
| Tokyo ap-northeast-1 | $1.62 | $2.36 | $1.02 | $0.6820 |
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.4xlarge |
|---|---|---|---|---|
| r6g.4xlarge AWS Graviton2 Processor | 16 | 128 GiB | $0.8064 | -40% |
| r7g.4xlarge AWS Graviton3 Processor | 16 | 128 GiB | $0.8568 | -36% |
| r5a.4xlarge AMD EPYC 7571 | 16 | 128 GiB | $0.9040 | -32% |
| r6a.4xlarge AMD EPYC 7R13 Processor | 16 | 128 GiB | $0.9072 | -32% |
| r6gd.4xlarge AWS Graviton2 Processor | 16 | 128 GiB | $0.9216 | -31% |
| r8g.4xlarge AWS Graviton4 Processor | 16 | 128 GiB | $0.9426 | -29% |
Cost calculator
Specs
| vCPU | 16 |
|---|---|
| Memory | 128 GiB (8.0 per vCPU) |
| Processor | Intel Xeon Platinum 8259 (Cascade Lake) |
| Clock | 3.1 GHz |
| Storage | 2 x 300 NVMe SSD |
| Network | Up to 25 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 |