c8g.12xlarge
Compute optimized · c8g series · AWS Graviton4 Processor
- vCPU
- 48
- Memory
- 96 GiB
- Linux / hour
- $1.91
- Per month
- $1,397
- Per vCPU-hour
- $0.0399
- Per GiB-hour
- $0.0199
Analysis
The c8g.12xlarge is a compute optimized instance in the c8g series with 48 vCPUs and 96 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 $1,195 a month per instance: $1.30/hour against $2.93/hour, a 126% spread.
It is the cheapest of the 5 processor variants AWS sells at this size and generation. The c8a.12xlarge on AMD EPYC 9R45 costs 35% more, and the c8i-flex.12xlarge, the c8i.12xlarge and the c8gd.12xlarge also sit above it.
At $1.91/hour on demand in US East (N. Virginia), about $1,397 a month, the c8g.12xlarge 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.12xlarge on AWS Graviton3 ($127 more a month per instance), in exchange for the newer processor. The newer c9g.12xlarge on AWS Graviton5 is 9.0% dearer at $2.09/hour.
Looking beyond its own line, 5 of 30 current types with 48 vCPUs and similar memory are cheaper. The cheapest of those is the c6g.12xlarge on AWS Graviton2 at $1.63/hour.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $1.91 | – | $1.26 | $0.8412 | |
| Ohio us-east-2 | $1.91 | – | $1.26 | $0.8398 | |
| Oregon us-west-2 | $1.91 | – | $1.26 | $0.8412 | |
| Canada Central ca-central-1 | $2.09 | – | $1.39 | $0.9161 | |
| São Paulo sa-east-1 | $2.93 | – | $1.94 | $1.33 | |
| Ireland eu-west-1 | $2.05 | – | $1.35 | $0.9331 | |
| London eu-west-2 | $2.27 | – | $1.50 | $1.03 | |
| Frankfurt eu-central-1 | $2.18 | – | $1.44 | $0.9874 | |
| Mumbai ap-south-1 | $1.30 | – | $0.8578 | $0.5877 | |
| Singapore ap-southeast-1 | $2.20 | – | $1.46 | $0.9976 | |
| Sydney ap-southeast-2 | $2.49 | – | $1.64 | $1.13 | |
| Tokyo ap-northeast-1 | $2.40 | – | $1.58 | $1.09 |
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.12xlarge |
|---|---|---|---|---|
| c6g.12xlarge AWS Graviton2 Processor | 48 | 96 GiB | $1.63 | -15% |
| c7g.12xlarge AWS Graviton3 Processor | 48 | 96 GiB | $1.74 | -9% |
| c6a.12xlarge AMD EPYC 7R13 Processor | 48 | 96 GiB | $1.84 | -4% |
| c6gd.12xlarge AWS Graviton2 Processor | 48 | 96 GiB | $1.84 | -4% |
| c5a.12xlarge AMD EPYC 7R32 | 48 | 96 GiB | $1.85 | -3% |
| c7i-flex.12xlarge Intel Xeon Scalable (Sapphire Rapids) | 48 | 96 GiB | $2.03 | +6% |
Cost calculator
Specs
| vCPU | 48 |
|---|---|
| Memory | 96 GiB (2.0 per vCPU) |
| Processor | AWS Graviton4 Processor |
| Clock | 2.7 GHz |
| Storage | EBS only |
| Network | 22.5 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 |