r5n.12xlarge
Memory optimized · r5n series · Intel Xeon Platinum 8259 (Cascade Lake)
- vCPU
- 48
- Memory
- 384 GiB
- Linux / hour
- $3.58
- Per month
- $2,610
- Per vCPU-hour
- $0.0745
- Per GiB-hour
- $0.00931
Analysis
The r5n.12xlarge is a memory optimized instance in the r5n series with 48 vCPUs and 384 GiB of memory on Intel Xeon Platinum 8259 (Cascade Lake) (up to 2.5 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, 24% less ($631 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 São Paulo saves $1,524 a month per instance: $3.58/hour against $5.66/hour, a 58% spread.
On demand it costs $3.58/hour in US East (N. Virginia), $2,610 a month if left running, which puts it mid-table for memory optimized types at the 40th percentile per vCPU ($0.0745 per vCPU-hour) and the 56th percentile per GiB ($0.00931 per GiB-hour).
Looking beyond its own line, 16 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.
It is size 6 of 8 in the r5n series. Stepping up to the r5n.16xlarge gives 64 vCPUs and 512 GiB for $870 more a month. Dropping to the r5n.8xlarge saves $870 a month.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $3.58 | $5.78 | $2.25 | $1.45 | |
| Ohio us-east-2 | $3.58 | $5.78 | $2.25 | $1.45 | |
| Oregon us-west-2 | $3.58 | $5.78 | $2.25 | $1.45 | |
| Canada Central ca-central-1 | $3.91 | $6.12 | $2.47 | $1.52 | |
| São Paulo sa-east-1 | $5.66 | $7.87 | $3.57 | $2.33 | |
| Ireland eu-west-1 | $4.01 | $6.22 | $2.52 | $1.65 | |
| London eu-west-2 | $4.20 | $6.41 | $2.66 | $1.77 | |
| Frankfurt eu-central-1 | $4.27 | $6.48 | $2.69 | $1.76 | |
| Mumbai ap-south-1 | $3.67 | $5.88 | $2.31 | $1.49 | |
| Singapore ap-southeast-1 | $4.27 | $6.48 | $2.69 | $1.76 | |
| Sydney ap-southeast-2 | $4.34 | $6.55 | $2.74 | $1.76 | |
| Tokyo ap-northeast-1 | $4.34 | $6.55 | $2.74 | $1.79 |
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 r5n.12xlarge |
|---|---|---|---|---|
| r6g.12xlarge AWS Graviton2 Processor | 48 | 384 GiB | $2.42 | -32% |
| r7g.12xlarge AWS Graviton3 Processor | 48 | 384 GiB | $2.57 | -28% |
| r5a.12xlarge AMD EPYC 7571 | 48 | 384 GiB | $2.71 | -24% |
| r6a.12xlarge AMD EPYC 7R13 Processor | 48 | 384 GiB | $2.72 | -24% |
| r6gd.12xlarge AWS Graviton2 Processor | 48 | 384 GiB | $2.76 | -23% |
| r8g.12xlarge AWS Graviton4 Processor | 48 | 384 GiB | $2.83 | -21% |
Cost calculator
Specs
| vCPU | 48 |
|---|---|
| Memory | 384 GiB (8.0 per vCPU) |
| Processor | Intel Xeon Platinum 8259 (Cascade Lake) |
| Clock | 2.5 GHz |
| Storage | EBS only |
| Network | 50 Gigabit |
r5n sizes
| r5n.large | 2 vCPU | $0.1490 |
| r5n.xlarge | 4 vCPU | $0.2980 |
| r5n.2xlarge | 8 vCPU | $0.5960 |
| r5n.4xlarge | 16 vCPU | $1.19 |
| r5n.8xlarge | 32 vCPU | $2.38 |
| r5n.12xlarge | 48 vCPU | $3.58 |
| r5n.16xlarge | 64 vCPU | $4.77 |
| r5n.24xlarge | 96 vCPU | $7.15 |