c8gn.8xlarge
Compute optimized · c8gn series · AWS Graviton4 Processor
- vCPU
- 32
- Memory
- 64 GiB
- Linux / hour
- $1.90
- Per month
- $1,384
- Per vCPU-hour
- $0.0592
- Per GiB-hour
- $0.0296
Analysis
The c8gn.8xlarge is a compute optimized instance in the c8gn series with 32 vCPUs and 64 GiB of memory on AWS Graviton4 (up to 2.8 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.
Within the same generation and size, the c8g.8xlarge on AWS Graviton4 costs $1.28/hour, 33% less ($452 a month). The other variants are the c8i-flex.8xlarge at $1.42, the c8i.8xlarge at $1.50 and the c8gd.8xlarge at $1.57.
Per vCPU it is one of the dearer compute optimized types: 82% of the 291 current types in the family cost less than its $0.0592 per vCPU-hour. The premium mostly pays for the very fast networking. On demand it is $1.90/hour in US East (N. Virginia), or $1,384 for a 730-hour month.
Running it in Mumbai instead of São Paulo saves $743 a month per instance: $1.90/hour against $2.91/hour, a 54% spread.
Looking beyond its own line, 22 of 28 current types with 32 vCPUs and similar memory are cheaper. The cheapest of those is the c6g.8xlarge on AWS Graviton2 at $1.09/hour.
It is 5.0% cheaper than the older c7gn.8xlarge on AWS Graviton3, so staying on the previous generation costs more as well as being slower.
It is size 6 of 10 in the c8gn series. Stepping up to the c8gn.12xlarge gives 48 vCPUs and 96 GiB for $692 more a month. Dropping to the c8gn.4xlarge saves $692 a month.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $1.90 | – | – | – | |
| Ohio us-east-2 | $1.90 | – | – | – | |
| Oregon us-west-2 | $1.90 | – | – | – | |
| Canada Central ca-central-1 | $2.07 | – | – | – | |
| São Paulo sa-east-1 | $2.91 | – | – | – | |
| Ireland eu-west-1 | $2.14 | – | – | – | |
| London eu-west-2 | $2.25 | – | – | – | |
| Frankfurt eu-central-1 | $2.16 | – | – | – | |
| Mumbai ap-south-1 | $1.90 | – | – | – | |
| Singapore ap-southeast-1 | $2.18 | – | – | – | |
| Sydney ap-southeast-2 | $2.48 | – | – | – | |
| Tokyo ap-northeast-1 | $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 c8gn.8xlarge |
|---|---|---|---|---|
| c6g.8xlarge AWS Graviton2 Processor | 32 | 64 GiB | $1.09 | -43% |
| c7g.8xlarge AWS Graviton3 Processor | 32 | 64 GiB | $1.16 | -39% |
| c6a.8xlarge AMD EPYC 7R13 Processor | 32 | 64 GiB | $1.22 | -35% |
| c6gd.8xlarge AWS Graviton2 Processor | 32 | 64 GiB | $1.23 | -35% |
| c5a.8xlarge AMD EPYC 7R32 | 32 | 64 GiB | $1.23 | -35% |
| c8g.8xlarge AWS Graviton4 Processor | 32 | 64 GiB | $1.28 | -33% |
Cost calculator
Specs
| vCPU | 32 |
|---|---|
| Memory | 64 GiB (2.0 per vCPU) |
| Processor | AWS Graviton4 Processor |
| Clock | 2.8 GHz |
| Storage | EBS only |
| Network | 100 Gigabit |
c8gn sizes
| c8gn.medium | 1 vCPU | $0.0593 |
| c8gn.large | 2 vCPU | $0.1185 |
| c8gn.xlarge | 4 vCPU | $0.2370 |
| c8gn.2xlarge | 8 vCPU | $0.4740 |
| c8gn.4xlarge | 16 vCPU | $0.9480 |
| c8gn.8xlarge | 32 vCPU | $1.90 |
| c8gn.12xlarge | 48 vCPU | $2.84 |
| c8gn.16xlarge | 64 vCPU | $3.79 |
| c8gn.24xlarge | 96 vCPU | $5.69 |
| c8gn.48xlarge | 192 vCPU | $11.38 |