r6idn.4xlarge
Memory optimized · r6idn series · Intel Xeon 8375C (Ice Lake)
- vCPU
- 16
- Memory
- 128 GiB
- Linux / hour
- $1.56
- Per month
- $1,141
- Per vCPU-hour
- $0.0977
- Per GiB-hour
- $0.0122
Analysis
The r6idn.4xlarge is a memory optimized instance in the r6idn series with 16 vCPUs and 128 GiB of memory on Intel Xeon 8375C (Ice Lake) (up to 3.5 GHz), which makes it memory-heavy at 8 GiB of memory per vCPU.
Within the same generation and size, the r6g.4xlarge on AWS Graviton2 costs $0.8064/hour, 48% less ($552 a month), though switching means rebuilding software for arm64. The other variants are the r6a.4xlarge at $0.9072, the r6gd.4xlarge at $0.9216 and the r6i.4xlarge at $1.01.
Running it in N. Virginia instead of Sydney saves $253 a month per instance: $1.56/hour against $1.91/hour, a 22% spread. It is not offered in São Paulo, London and Mumbai, so plan around that if you need a presence there.
On demand it costs $1.56/hour in US East (N. Virginia), $1,141 a month if left running, which puts it mid-table for memory optimized types at the 72nd percentile per vCPU ($0.0977 per vCPU-hour) and the 88th percentile per GiB ($0.0122 per GiB-hour).
Looking beyond its own line, 34 of 42 current types with 16 vCPUs and similar memory are cheaper. The cheapest of those is the r7g.4xlarge on AWS Graviton3 at $0.8568/hour.
It has local instance storage (1 x 950 GB NVMe SSD), which is fast but lost when the instance stops. Network: Up to 50000 Megabit.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $1.56 | $2.30 | $0.9848 | $0.6364 | |
| Ohio us-east-2 | $1.56 | $2.30 | $0.9848 | $0.6364 | |
| Oregon us-west-2 | $1.56 | $2.30 | $0.9848 | $0.6364 | |
| Canada Central ca-central-1 | $1.72 | $2.46 | $1.08 | $0.7001 | |
| Ireland eu-west-1 | $1.74 | $2.48 | $1.10 | $0.7275 | |
| Frankfurt eu-central-1 | $1.86 | $2.60 | $1.17 | $0.7763 | |
| Singapore ap-southeast-1 | $1.87 | $2.61 | $1.18 | $0.7683 | |
| Sydney ap-southeast-2 | $1.91 | $2.65 | $1.20 | $0.7816 | |
| Tokyo ap-northeast-1 | $1.90 | $2.64 | $1.20 | $0.7983 |
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 r6idn.4xlarge |
|---|---|---|---|---|
| r6g.4xlarge AWS Graviton2 Processor | 16 | 128 GiB | $0.8064 | -48% |
| r7g.4xlarge AWS Graviton3 Processor | 16 | 128 GiB | $0.8568 | -45% |
| r5a.4xlarge AMD EPYC 7571 | 16 | 128 GiB | $0.9040 | -42% |
| r6a.4xlarge AMD EPYC 7R13 Processor | 16 | 128 GiB | $0.9072 | -42% |
| r6gd.4xlarge AWS Graviton2 Processor | 16 | 128 GiB | $0.9216 | -41% |
| r8g.4xlarge AWS Graviton4 Processor | 16 | 128 GiB | $0.9426 | -40% |
Cost calculator
Specs
| vCPU | 16 |
|---|---|
| Memory | 128 GiB (8.0 per vCPU) |
| Processor | Intel Xeon 8375C (Ice Lake) |
| Clock | 3.5 GHz |
| Storage | 1 x 950 NVMe SSD |
| Network | Up to 50000 Megabit |
r6idn sizes
| r6idn.large | 2 vCPU | $0.1954 |
| r6idn.xlarge | 4 vCPU | $0.3908 |
| r6idn.2xlarge | 8 vCPU | $0.7816 |
| r6idn.4xlarge | 16 vCPU | $1.56 |
| r6idn.8xlarge | 32 vCPU | $3.13 |
| r6idn.12xlarge | 48 vCPU | $4.69 |
| r6idn.16xlarge | 64 vCPU | $6.25 |
| r6idn.24xlarge | 96 vCPU | $9.38 |
| r6idn.32xlarge | 128 vCPU | $12.50 |