c6i.4xlarge
Compute optimized · c6i series · Intel Xeon 8375C (Ice Lake)
- vCPU
- 16
- Memory
- 32 GiB
- Linux / hour
- $0.6800
- Per month
- $496
- Per vCPU-hour
- $0.0425
- Per GiB-hour
- $0.0213
Analysis
The c6i.4xlarge is a compute optimized instance in the c6i series with 16 vCPUs and 32 GiB of memory on Intel Xeon 8375C (Ice Lake) (up to 3.5 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.
Within the same generation and size, the c6g.4xlarge on AWS Graviton2 costs $0.5440/hour, 20% less ($99.28 a month), though switching means rebuilding software for arm64. The other variants are the c6a.4xlarge at $0.6120, the c6gd.4xlarge at $0.6144 and the c6gn.4xlarge at $0.6912.
At $0.6800/hour on demand in US East (N. Virginia), about $496 a month, the c6i.4xlarge is one of the cheaper ways to buy compute optimized capacity: only 24% of the 291 current compute optimized types cost less per vCPU-hour than its $0.0425.
Running it in Mumbai instead of São Paulo saves $269 a month per instance: $0.6800/hour against $1.05/hour, a 54% spread.
Reserving it for a year with no upfront payment cuts the Linux rate to $0.4498/hour, which beats on demand once it runs more than 66% of the time; three years brings it to $0.2994/hour, 56% below on demand. Windows Server roughly doubles the bill at $1.42/hour, because the licence is charged per vCPU.
The newer c7i.4xlarge on Intel Xeon Scalable (Sapphire Rapids) is 5.0% dearer at $0.7140/hour.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $0.6800 | $1.42 | $0.4498 | $0.2994 | |
| Ohio us-east-2 | $0.6800 | $1.42 | $0.4498 | $0.2994 | |
| Oregon us-west-2 | $0.6800 | $1.42 | $0.4498 | $0.2994 | |
| Canada Central ca-central-1 | $0.7440 | $1.48 | $0.4939 | $0.3266 | |
| São Paulo sa-east-1 | $1.05 | $1.78 | $0.6922 | $0.4761 | |
| Ireland eu-west-1 | $0.7296 | $1.47 | $0.4830 | $0.3326 | |
| London eu-west-2 | $0.8080 | $1.54 | $0.5334 | $0.3672 | |
| Frankfurt eu-central-1 | $0.7760 | $1.51 | $0.5116 | $0.3520 | |
| Mumbai ap-south-1 | $0.6800 | $1.42 | $0.4502 | $0.3085 | |
| Singapore ap-southeast-1 | $0.7840 | $1.52 | $0.5204 | $0.3556 | |
| Sydney ap-southeast-2 | $0.8880 | $1.62 | $0.5863 | $0.4035 | |
| Tokyo ap-northeast-1 | $0.8560 | $1.59 | $0.5645 | $0.3901 |
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 c6i.4xlarge |
|---|---|---|---|---|
| c6g.4xlarge AWS Graviton2 Processor | 16 | 32 GiB | $0.5440 | -20% |
| c7g.4xlarge AWS Graviton3 Processor | 16 | 32 GiB | $0.5800 | -15% |
| c6a.4xlarge AMD EPYC 7R13 Processor | 16 | 32 GiB | $0.6120 | -10% |
| c6gd.4xlarge AWS Graviton2 Processor | 16 | 32 GiB | $0.6144 | -10% |
| c5a.4xlarge AMD EPYC 7R32 | 16 | 32 GiB | $0.6160 | -9% |
| c8g.4xlarge AWS Graviton4 Processor | 16 | 32 GiB | $0.6381 | -6% |
Cost calculator
Specs
| vCPU | 16 |
|---|---|
| Memory | 32 GiB (2.0 per vCPU) |
| Processor | Intel Xeon 8375C (Ice Lake) |
| Clock | 3.5 GHz |
| Storage | EBS only |
| Network | Up to 12500 Megabit |
c6i sizes
| c6i.large | 2 vCPU | $0.0850 |
| c6i.xlarge | 4 vCPU | $0.1700 |
| c6i.2xlarge | 8 vCPU | $0.3400 |
| c6i.4xlarge | 16 vCPU | $0.6800 |
| c6i.8xlarge | 32 vCPU | $1.36 |
| c6i.12xlarge | 48 vCPU | $2.04 |
| c6i.16xlarge | 64 vCPU | $2.72 |
| c6i.24xlarge | 96 vCPU | $4.08 |
| c6i.32xlarge | 128 vCPU | $5.44 |