c5a.24xlarge
Compute optimized · c5a series · AMD EPYC 7R32
- vCPU
- 96
- Memory
- 192 GiB
- Linux / hour
- $3.70
- Per month
- $2,698
- Per vCPU-hour
- $0.0385
- Per GiB-hour
- $0.0192
Analysis
The c5a.24xlarge is a compute optimized instance in the c5a series with 96 vCPUs and 192 GiB of memory on AMD EPYC 7R32 (up to 3.3 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.
Running it in Mumbai instead of São Paulo saves $2,488 a month per instance: $2.26/hour against $5.66/hour, a 151% spread.
It is the cheapest of the 4 processor variants AWS sells at this size and generation. The c5d.24xlarge on Intel Xeon Platinum 8275L costs 25% more, and the c5.24xlarge and the c5ad.24xlarge also sit above it.
At $3.70/hour on demand in US East (N. Virginia), about $2,698 a month, the c5a.24xlarge is one of the cheaper ways to buy compute optimized capacity: only 14% of the 291 current compute optimized types cost less per vCPU-hour than its $0.0385.
Reserving it for a year with no upfront payment cuts the Linux rate to $2.33/hour, which beats on demand once it runs more than 63% of the time; three years brings it to $1.60/hour, 57% below on demand. Windows Server roughly doubles the bill at $8.11/hour, because the licence is charged per vCPU.
It is the largest of the 8 c5a sizes. Dropping to the c5a.16xlarge saves $899 a month.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $3.70 | $8.11 | $2.33 | $1.60 | |
| Ohio us-east-2 | $3.70 | $8.11 | $2.33 | $1.60 | |
| Oregon us-west-2 | $3.70 | $8.11 | $2.33 | $1.60 | |
| Canada Central ca-central-1 | $4.03 | $8.45 | $2.54 | $1.74 | |
| São Paulo sa-east-1 | $5.66 | $10.08 | $3.57 | $2.45 | |
| Ireland eu-west-1 | $4.13 | $8.54 | $2.60 | $1.78 | |
| London eu-west-2 | $4.37 | $8.78 | $2.75 | $1.89 | |
| Frankfurt eu-central-1 | $4.18 | $8.59 | $2.63 | $1.80 | |
| Mumbai ap-south-1 | $2.26 | $6.67 | $1.42 | $0.9750 | |
| Singapore ap-southeast-1 | $4.22 | $8.64 | $2.66 | $1.82 | |
| Sydney ap-southeast-2 | $4.80 | $9.22 | $3.02 | $2.07 | |
| Tokyo ap-northeast-1 | $4.61 | $9.02 | $2.90 | $1.99 |
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 c5a.24xlarge |
|---|---|---|---|---|
| c6a.24xlarge AMD EPYC 7R13 Processor | 96 | 192 GiB | $3.67 | -1% |
| c8g.24xlarge AWS Graviton4 Processor | 96 | 192 GiB | $3.83 | +4% |
| c6i.24xlarge Intel Xeon 8375C (Ice Lake) | 96 | 192 GiB | $4.08 | +10% |
| c5.24xlarge Intel Xeon Platinum 8275L | 96 | 192 GiB | $4.08 | +10% |
| c5ad.24xlarge AMD EPYC 7R32 | 96 | 192 GiB | $4.13 | +12% |
| c9g.24xlarge AWS Graviton5 Processor | 96 | 192 GiB | $4.17 | +13% |
Cost calculator
Specs
| vCPU | 96 |
|---|---|
| Memory | 192 GiB (2.0 per vCPU) |
| Processor | AMD EPYC 7R32 |
| Clock | 3.3 GHz |
| Storage | EBS only |
| Network | 20 Gigabit |
c5a sizes
| c5a.large | 2 vCPU | $0.0770 |
| c5a.xlarge | 4 vCPU | $0.1540 |
| c5a.2xlarge | 8 vCPU | $0.3080 |
| c5a.4xlarge | 16 vCPU | $0.6160 |
| c5a.8xlarge | 32 vCPU | $1.23 |
| c5a.12xlarge | 48 vCPU | $1.85 |
| c5a.16xlarge | 64 vCPU | $2.46 |
| c5a.24xlarge | 96 vCPU | $3.70 |