r6idn.16xlarge
Memory optimized · r6idn series · Intel Xeon 8375C (Ice Lake)
- vCPU
- 64
- Memory
- 512 GiB
- Linux / hour
- $6.25
- Per month
- $4,564
- Per vCPU-hour
- $0.0977
- Per GiB-hour
- $0.0122
Analysis
The r6idn.16xlarge is a memory optimized instance in the r6idn series with 64 vCPUs and 512 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.16xlarge on AWS Graviton2 costs $3.23/hour, 48% less ($2,210 a month), though switching means rebuilding software for arm64. The other variants are the r6a.16xlarge at $3.63, the r6gd.16xlarge at $3.69 and the r6i.16xlarge at $4.03.
Running it in N. Virginia instead of Sydney saves $1,011 a month per instance: $6.25/hour against $7.64/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 $6.25/hour in US East (N. Virginia), $4,564 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 39 current types with 64 vCPUs and similar memory are cheaper. The cheapest of those is the r7g.16xlarge on AWS Graviton3 at $3.43/hour.
It has local instance storage (2 x 1900 GB NVMe SSD), which is fast but lost when the instance stops. Network: 100000 Megabit.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $6.25 | $9.20 | $3.94 | $2.55 | |
| Ohio us-east-2 | $6.25 | $9.20 | $3.94 | $2.55 | |
| Oregon us-west-2 | $6.25 | $9.20 | $3.94 | $2.55 | |
| Canada Central ca-central-1 | $6.88 | $9.82 | $4.33 | $2.80 | |
| Ireland eu-west-1 | $6.96 | $9.91 | $4.39 | $2.91 | |
| Frankfurt eu-central-1 | $7.45 | $10.39 | $4.69 | $3.11 | |
| Singapore ap-southeast-1 | $7.49 | $10.43 | $4.72 | $3.07 | |
| Sydney ap-southeast-2 | $7.64 | $10.58 | $4.81 | $3.13 | |
| Tokyo ap-northeast-1 | $7.60 | $10.54 | $4.79 | $3.19 |
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.16xlarge |
|---|---|---|---|---|
| r6g.16xlarge AWS Graviton2 Processor | 64 | 512 GiB | $3.23 | -48% |
| r7g.16xlarge AWS Graviton3 Processor | 64 | 512 GiB | $3.43 | -45% |
| r5a.16xlarge AMD EPYC 7571 | 64 | 512 GiB | $3.62 | -42% |
| r6a.16xlarge AMD EPYC 7R13 Processor | 64 | 512 GiB | $3.63 | -42% |
| r6gd.16xlarge AWS Graviton2 Processor | 64 | 512 GiB | $3.69 | -41% |
| r8g.16xlarge AWS Graviton4 Processor | 64 | 512 GiB | $3.77 | -40% |
Cost calculator
Specs
| vCPU | 64 |
|---|---|
| Memory | 512 GiB (8.0 per vCPU) |
| Processor | Intel Xeon 8375C (Ice Lake) |
| Clock | 3.5 GHz |
| Storage | 2 x 1900 NVMe SSD |
| Network | 100000 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 |