r6idn.12xlarge
Memory optimized · r6idn series · Intel Xeon 8375C (Ice Lake)
- vCPU
- 48
- Memory
- 384 GiB
- Linux / hour
- $4.69
- Per month
- $3,423
- Per vCPU-hour
- $0.0977
- Per GiB-hour
- $0.0122
Analysis
The r6idn.12xlarge is a memory optimized instance in the r6idn series with 48 vCPUs and 384 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.12xlarge on AWS Graviton2 costs $2.42/hour, 48% less ($1,657 a month), though switching means rebuilding software for arm64. The other variants are the r6a.12xlarge at $2.72, the r6gd.12xlarge at $2.76 and the r6i.12xlarge at $3.02.
Running it in N. Virginia instead of Sydney saves $758 a month per instance: $4.69/hour against $5.73/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 $4.69/hour in US East (N. Virginia), $3,423 a month if left running, which puts it mid-table for memory optimized types at the 71st percentile per vCPU ($0.0977 per vCPU-hour) and the 87th percentile per GiB ($0.0122 per GiB-hour).
Looking beyond its own line, 32 of 40 current types with 48 vCPUs and similar memory are cheaper. The cheapest of those is the r7g.12xlarge on AWS Graviton3 at $2.57/hour.
It has local instance storage (2 x 1425 GB NVMe SSD), which is fast but lost when the instance stops. Network: 75000 Megabit.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $4.69 | $6.90 | $2.95 | $1.91 | |
| Ohio us-east-2 | $4.69 | $6.90 | $2.95 | $1.91 | |
| Oregon us-west-2 | $4.69 | $6.90 | $2.95 | $1.91 | |
| Canada Central ca-central-1 | $5.16 | $7.37 | $3.25 | $2.10 | |
| Ireland eu-west-1 | $5.22 | $7.43 | $3.29 | $2.18 | |
| Frankfurt eu-central-1 | $5.59 | $7.80 | $3.52 | $2.33 | |
| Singapore ap-southeast-1 | $5.62 | $7.82 | $3.54 | $2.30 | |
| Sydney ap-southeast-2 | $5.73 | $7.94 | $3.61 | $2.34 | |
| Tokyo ap-northeast-1 | $5.70 | $7.91 | $3.59 | $2.39 |
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.12xlarge |
|---|---|---|---|---|
| r6g.12xlarge AWS Graviton2 Processor | 48 | 384 GiB | $2.42 | -48% |
| r7g.12xlarge AWS Graviton3 Processor | 48 | 384 GiB | $2.57 | -45% |
| r5a.12xlarge AMD EPYC 7571 | 48 | 384 GiB | $2.71 | -42% |
| r6a.12xlarge AMD EPYC 7R13 Processor | 48 | 384 GiB | $2.72 | -42% |
| r6gd.12xlarge AWS Graviton2 Processor | 48 | 384 GiB | $2.76 | -41% |
| r8g.12xlarge AWS Graviton4 Processor | 48 | 384 GiB | $2.83 | -40% |
Cost calculator
Specs
| vCPU | 48 |
|---|---|
| Memory | 384 GiB (8.0 per vCPU) |
| Processor | Intel Xeon 8375C (Ice Lake) |
| Clock | 3.5 GHz |
| Storage | 2 x 1425 NVMe SSD |
| Network | 75000 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 |