c8g.8xlarge
Compute optimized · c8g series · AWS Graviton4 Processor
- vCPU
- 32
- Memory
- 64 GiB
- Linux / hour
- $1.28
- Per month
- $932
- Per vCPU-hour
- $0.0399
- Per GiB-hour
- $0.0199
Analysis
The c8g.8xlarge is a compute optimized instance in the c8g series with 32 vCPUs and 64 GiB of memory on AWS Graviton4 (up to 2.7 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.
Running it in Mumbai instead of São Paulo saves $797 a month per instance: $0.8637/hour against $1.95/hour, a 126% spread.
It is the cheapest of the 5 processor variants AWS sells at this size and generation. The c8a.8xlarge on AMD EPYC 9R45 costs 35% more, and the c8i-flex.8xlarge, the c8i.8xlarge and the c8gd.8xlarge also sit above it.
At $1.28/hour on demand in US East (N. Virginia), about $932 a month, the c8g.8xlarge is one of the cheaper ways to buy compute optimized capacity: only 17% of the 291 current compute optimized types cost less per vCPU-hour than its $0.0399.
Compared with the previous generation, it costs 10% more than the c7g.8xlarge on AWS Graviton3 ($84.80 more a month per instance), in exchange for the newer processor. The newer c9g.8xlarge on AWS Graviton5 is 9.0% dearer at $1.39/hour.
Looking beyond its own line, 5 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.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $1.28 | – | $0.8409 | $0.5608 | |
| Ohio us-east-2 | $1.27 | – | $0.8412 | $0.5599 | |
| Oregon us-west-2 | $1.28 | – | $0.8409 | $0.5608 | |
| Canada Central ca-central-1 | $1.39 | – | $0.9237 | $0.6108 | |
| São Paulo sa-east-1 | $1.95 | – | $1.29 | $0.8879 | |
| Ireland eu-west-1 | $1.36 | – | $0.9033 | $0.6221 | |
| London eu-west-2 | $1.51 | – | $0.9975 | $0.6867 | |
| Frankfurt eu-central-1 | $1.45 | – | $0.9567 | $0.6583 | |
| Mumbai ap-south-1 | $0.8637 | – | $0.5719 | $0.3918 | |
| Singapore ap-southeast-1 | $1.47 | – | $0.9730 | $0.6651 | |
| Sydney ap-southeast-2 | $1.66 | – | $1.10 | $0.7546 | |
| Tokyo ap-northeast-1 | $1.60 | – | $1.06 | $0.7297 |
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 c8g.8xlarge |
|---|---|---|---|---|
| c6g.8xlarge AWS Graviton2 Processor | 32 | 64 GiB | $1.09 | -15% |
| c7g.8xlarge AWS Graviton3 Processor | 32 | 64 GiB | $1.16 | -9% |
| c6a.8xlarge AMD EPYC 7R13 Processor | 32 | 64 GiB | $1.22 | -4% |
| c6gd.8xlarge AWS Graviton2 Processor | 32 | 64 GiB | $1.23 | -4% |
| c5a.8xlarge AMD EPYC 7R32 | 32 | 64 GiB | $1.23 | -3% |
| c7i-flex.8xlarge Intel Xeon Scalable (Sapphire Rapids) | 32 | 64 GiB | $1.36 | +6% |
Cost calculator
Specs
| vCPU | 32 |
|---|---|
| Memory | 64 GiB (2.0 per vCPU) |
| Processor | AWS Graviton4 Processor |
| Clock | 2.7 GHz |
| Storage | EBS only |
| Network | 15 Gigabit |
c8g sizes
| c8g.medium | 1 vCPU | $0.0399 |
| c8g.large | 2 vCPU | $0.0798 |
| c8g.xlarge | 4 vCPU | $0.1595 |
| c8g.2xlarge | 8 vCPU | $0.3190 |
| c8g.4xlarge | 16 vCPU | $0.6381 |
| c8g.8xlarge | 32 vCPU | $1.28 |
| c8g.12xlarge | 48 vCPU | $1.91 |
| c8g.16xlarge | 64 vCPU | $2.55 |
| c8g.24xlarge | 96 vCPU | $3.83 |
| c8g.48xlarge | 192 vCPU | $7.66 |