c7i-flex.8xlarge
Compute optimized · c7i-flex series · Intel Xeon Scalable (Sapphire Rapids)
- vCPU
- 32
- Memory
- 64 GiB
- Linux / hour
- $1.36
- Per month
- $990
- Per vCPU-hour
- $0.0424
- Per GiB-hour
- $0.0212
Analysis
The c7i-flex.8xlarge is a compute optimized instance in the c7i-flex series with 32 vCPUs and 64 GiB of memory on Intel Xeon Scalable (Sapphire Rapids) (up to 3.2 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.
Within the same generation and size, the c7g.8xlarge on AWS Graviton3 costs $1.16/hour, 14% less ($144 a month), though switching means rebuilding software for arm64. The other variants are the c7i.8xlarge at $1.43, the c7gd.8xlarge at $1.45 and the c7a.8xlarge at $1.64.
At $1.36/hour on demand in US East (N. Virginia), about $990 a month, the c7i-flex.8xlarge is one of the cheaper ways to buy compute optimized capacity: only 20% of the 291 current compute optimized types cost less per vCPU-hour than its $0.0424.
Running it in Mumbai instead of São Paulo saves $536 a month per instance: $1.36/hour against $2.09/hour, a 54% spread.
Reserving it for a year with no upfront payment cuts the Linux rate to $0.8974/hour, which beats on demand once it runs more than 66% of the time; three years brings it to $0.5972/hour, 56% below on demand. Windows Server roughly doubles the bill at $2.75/hour, because the licence is charged per vCPU.
The newer c8i-flex.8xlarge on Intel Xeon Scalable (Granite Rapids) is 5.0% dearer at $1.42/hour.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $1.36 | $2.75 | $0.8974 | $0.5972 | |
| Ohio us-east-2 | $1.36 | $2.75 | $0.8974 | $0.5972 | |
| Oregon us-west-2 | $1.36 | $2.75 | $0.8974 | $0.5972 | |
| Canada Central ca-central-1 | $1.48 | $2.88 | $0.9854 | $0.6515 | |
| São Paulo sa-east-1 | $2.09 | $3.49 | $1.38 | $0.9497 | |
| Ireland eu-west-1 | $1.46 | $2.85 | $0.9635 | $0.6637 | |
| London eu-west-2 | $1.61 | $3.01 | $1.06 | $0.7325 | |
| Frankfurt eu-central-1 | $1.55 | $2.95 | $1.02 | $0.7023 | |
| Mumbai ap-south-1 | $1.36 | $2.75 | $0.8981 | $0.6152 | |
| Singapore ap-southeast-1 | $1.56 | $2.96 | $1.04 | $0.7096 | |
| Sydney ap-southeast-2 | $1.77 | $3.17 | $1.17 | $0.8049 | |
| Tokyo ap-northeast-1 | $1.71 | $3.11 | $1.13 | $0.7783 |
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 c7i-flex.8xlarge |
|---|---|---|---|---|
| c6g.8xlarge AWS Graviton2 Processor | 32 | 64 GiB | $1.09 | -20% |
| c7g.8xlarge AWS Graviton3 Processor | 32 | 64 GiB | $1.16 | -14% |
| c6a.8xlarge AMD EPYC 7R13 Processor | 32 | 64 GiB | $1.22 | -10% |
| c6gd.8xlarge AWS Graviton2 Processor | 32 | 64 GiB | $1.23 | -9% |
| c5a.8xlarge AMD EPYC 7R32 | 32 | 64 GiB | $1.23 | -9% |
| c8g.8xlarge AWS Graviton4 Processor | 32 | 64 GiB | $1.28 | -6% |
Cost calculator
Specs
| vCPU | 32 |
|---|---|
| Memory | 64 GiB (2.0 per vCPU) |
| Processor | Intel Xeon Scalable (Sapphire Rapids) |
| Clock | 3.2 GHz |
| Storage | EBS only |
| Network | Up to 12500 Megabit |
c7i-flex sizes
| c7i-flex.large | 2 vCPU | $0.0848 |
| c7i-flex.xlarge | 4 vCPU | $0.1696 |
| c7i-flex.2xlarge | 8 vCPU | $0.3392 |
| c7i-flex.4xlarge | 16 vCPU | $0.6783 |
| c7i-flex.8xlarge | 32 vCPU | $1.36 |
| c7i-flex.12xlarge | 48 vCPU | $2.03 |
| c7i-flex.16xlarge | 64 vCPU | $2.71 |