r5n.16xlarge
Memory optimized · r5n series · Intel Xeon Platinum 8259 (Cascade Lake)
- vCPU
- 64
- Memory
- 512 GiB
- Linux / hour
- $4.77
- Per month
- $3,481
- Per vCPU-hour
- $0.0745
- Per GiB-hour
- $0.00931
Analysis
The r5n.16xlarge is a memory optimized instance in the r5n series with 64 vCPUs and 512 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.16xlarge on AMD EPYC 7571 costs $3.62/hour, 24% less ($841 a month). The other variants are the r5.16xlarge at $4.03, the r5ad.16xlarge at $4.19 and the r5d.16xlarge at $4.61.
Running it in N. Virginia instead of São Paulo saves $2,032 a month per instance: $4.77/hour against $7.55/hour, a 58% spread.
On demand it costs $4.77/hour in US East (N. Virginia), $3,481 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, 17 of 39 current types with 64 vCPUs and similar memory are cheaper. The cheapest of those is the r6g.16xlarge on AWS Graviton2 at $3.23/hour.
It is size 7 of 8 in the r5n series. Stepping up to the r5n.24xlarge gives 96 vCPUs and 768 GiB for $1,740 more a month. Dropping to the r5n.12xlarge saves $870 a month.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $4.77 | $7.71 | $3.00 | $1.93 | |
| Ohio us-east-2 | $4.77 | $7.71 | $3.00 | $1.93 | |
| Oregon us-west-2 | $4.77 | $7.71 | $3.00 | $1.93 | |
| Canada Central ca-central-1 | $5.22 | $8.16 | $3.29 | $2.02 | |
| São Paulo sa-east-1 | $7.55 | $10.50 | $4.76 | $3.11 | |
| Ireland eu-west-1 | $5.34 | $8.29 | $3.37 | $2.19 | |
| London eu-west-2 | $5.60 | $8.54 | $3.54 | $2.37 | |
| Frankfurt eu-central-1 | $5.70 | $8.64 | $3.59 | $2.35 | |
| Mumbai ap-south-1 | $4.90 | $7.84 | $3.08 | $1.98 | |
| Singapore ap-southeast-1 | $5.70 | $8.64 | $3.59 | $2.35 | |
| Sydney ap-southeast-2 | $5.79 | $8.74 | $3.65 | $2.35 | |
| Tokyo ap-northeast-1 | $5.79 | $8.74 | $3.65 | $2.38 |
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.16xlarge |
|---|---|---|---|---|
| r6g.16xlarge AWS Graviton2 Processor | 64 | 512 GiB | $3.23 | -32% |
| r7g.16xlarge AWS Graviton3 Processor | 64 | 512 GiB | $3.43 | -28% |
| r5a.16xlarge AMD EPYC 7571 | 64 | 512 GiB | $3.62 | -24% |
| r6a.16xlarge AMD EPYC 7R13 Processor | 64 | 512 GiB | $3.63 | -24% |
| r6gd.16xlarge AWS Graviton2 Processor | 64 | 512 GiB | $3.69 | -23% |
| r8g.16xlarge AWS Graviton4 Processor | 64 | 512 GiB | $3.77 | -21% |
Cost calculator
Specs
| vCPU | 64 |
|---|---|
| Memory | 512 GiB (8.0 per vCPU) |
| Processor | Intel Xeon Platinum 8259 (Cascade Lake) |
| Clock | 2.5 GHz |
| Storage | EBS only |
| Network | 75 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 |