c8in.16xlarge
Compute optimized · c8in series · Intel Xeon Scalable (Granite Rapids)
- vCPU
- 64
- Memory
- 128 GiB
- Linux / hour
- $4.35
- Per month
- $3,179
- Per vCPU-hour
- $0.0680
- Per GiB-hour
- $0.0340
Analysis
The c8in.16xlarge is a compute optimized instance in the c8in series with 64 vCPUs and 128 GiB of memory on Intel Xeon Scalable (Granite Rapids) (up to 3.9 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.
Within the same generation and size, the c8g.16xlarge on AWS Graviton4 costs $2.55/hour, 41% less ($1,316 a month), though switching means rebuilding software for arm64. The other variants are the c8i-flex.16xlarge at $2.85, the c8i.16xlarge at $3.00 and the c8gd.16xlarge at $3.14.
Running it in N. Virginia instead of Sydney saves $971 a month per instance: $4.35/hour against $5.69/hour, a 31% spread. It is not offered in Canada Central, São Paulo, London and Mumbai, so plan around that if you need a presence there.
Per vCPU it is one of the dearer compute optimized types: 92% of the 291 current types in the family cost less than its $0.0680 per vCPU-hour. The premium mostly pays for the very fast networking. On demand it is $4.35/hour in US East (N. Virginia), or $3,179 for a 730-hour month.
Looking beyond its own line, 26 of 28 current types with 64 vCPUs and similar memory are cheaper. The cheapest of those is the hpc7g.16xlarge on AWS Graviton3 at $1.68/hour.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $4.35 | $7.30 | – | – | |
| Ohio us-east-2 | $4.35 | $7.30 | – | – | |
| Oregon us-west-2 | $4.35 | $7.30 | – | – | |
| Ireland eu-west-1 | $4.92 | $7.86 | – | – | |
| Frankfurt eu-central-1 | $4.96 | $7.90 | – | – | |
| Singapore ap-southeast-1 | $5.00 | $7.94 | – | – | |
| Sydney ap-southeast-2 | $5.69 | $8.63 | – | – | |
| Tokyo ap-northeast-1 | $5.48 | $8.43 | – | – |
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 c8in.16xlarge |
|---|---|---|---|---|
| hpc7g.16xlarge AWS Graviton3 Processor | 64 | 128 GiB | $1.68 | -61% |
| c6g.16xlarge AWS Graviton2 Processor | 64 | 128 GiB | $2.18 | -50% |
| c7g.16xlarge AWS Graviton3 Processor | 64 | 128 GiB | $2.32 | -47% |
| c6a.16xlarge AMD EPYC 7R13 Processor | 64 | 128 GiB | $2.45 | -44% |
| c6gd.16xlarge AWS Graviton2 Processor | 64 | 128 GiB | $2.46 | -44% |
| c5a.16xlarge AMD EPYC 7R32 | 64 | 128 GiB | $2.46 | -43% |
Cost calculator
Specs
| vCPU | 64 |
|---|---|
| Memory | 128 GiB (2.0 per vCPU) |
| Processor | Intel Xeon Scalable (Granite Rapids) |
| Clock | 3.9 GHz |
| Storage | EBS only |
| Network | 100 Gigabit |
c8in sizes
| c8in.large | 2 vCPU | $0.1361 |
| c8in.xlarge | 4 vCPU | $0.2722 |
| c8in.2xlarge | 8 vCPU | $0.5443 |
| c8in.4xlarge | 16 vCPU | $1.09 |
| c8in.8xlarge | 32 vCPU | $2.18 |
| c8in.12xlarge | 48 vCPU | $3.27 |
| c8in.16xlarge | 64 vCPU | $4.35 |
| c8in.24xlarge | 96 vCPU | $6.53 |
| c8in.32xlarge | 128 vCPU | $8.71 |
| c8in.48xlarge | 192 vCPU | $13.06 |
| c8in.96xlarge | 384 vCPU | $26.13 |