c8a.medium
Compute optimized · c8a series · AMD EPYC 9R45 Processor
- vCPU
- 1
- Memory
- 2 GiB
- Linux / hour
- $0.0539
- Per month
- $39.34
- Per vCPU-hour
- $0.0539
- Per GiB-hour
- $0.0269
Analysis
The c8a.medium is a compute optimized instance in the c8a series with 1 vCPU and 2 GiB of memory on AMD EPYC 9R45 (up to Up to 4.5 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.
Within the same generation and size, the c8g.medium on AWS Graviton4 costs $0.0399/hour, 26% less ($10.23 a month), though switching means rebuilding software for arm64. The other variants are the c8gd.medium at $0.0490, the c8gb.medium at $0.0592 and the c8gn.medium at $0.0593.
Running it in N. Virginia instead of Tokyo saves $10.18 a month per instance: $0.0539/hour against $0.0678/hour, a 26% spread. It is not offered in Canada Central, São Paulo, London, Mumbai, Singapore and Sydney, so plan around that if you need a presence there.
On demand it costs $0.0539/hour in US East (N. Virginia), $39.34 a month if left running, which puts it mid-table for compute optimized types at the 70th percentile per vCPU ($0.0539 per vCPU-hour) and the 74th percentile per GiB ($0.0269 per GiB-hour).
Looking beyond its own line, 11 of 15 current types with 1 vCPU and similar memory are cheaper. The cheapest of those is the t2.small on Intel Xeon Family at $0.0230/hour. It is burstable, so it only suits workloads that do not run the CPU flat out.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $0.0539 | $0.0999 | – | – | |
| Ohio us-east-2 | $0.0539 | $0.0999 | – | – | |
| Oregon us-west-2 | $0.0539 | $0.0999 | – | – | |
| Ireland eu-west-1 | $0.0578 | $0.1038 | – | – | |
| Frankfurt eu-central-1 | $0.0615 | $0.1075 | – | – | |
| Tokyo ap-northeast-1 | $0.0678 | $0.1138 | – | – |
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 c8a.medium |
|---|---|---|---|---|
| t2.small Intel Xeon Family | 1 | 2 GiB | $0.0230 | -57% |
| c6g.medium AWS Graviton2 Processor | 1 | 2 GiB | $0.0340 | -37% |
| c7g.medium AWS Graviton3 Processor | 1 | 2 GiB | $0.0363 | -33% |
| c6gd.medium AWS Graviton2 Processor | 1 | 2 GiB | $0.0384 | -29% |
| c8g.medium AWS Graviton4 Processor | 1 | 2 GiB | $0.0399 | -26% |
| c6gn.medium AWS Graviton2 Processor | 1 | 2 GiB | $0.0432 | -20% |
Cost calculator
Specs
| vCPU | 1 |
|---|---|
| Memory | 2 GiB (2.0 per vCPU) |
| Processor | AMD EPYC 9R45 Processor |
| Clock | Up to 4.5 GHz |
| Storage | EBS only |
| Network | Up to 15000 Megabit |
c8a sizes
| c8a.medium | 1 vCPU | $0.0539 |
| c8a.large | 2 vCPU | $0.1078 |
| c8a.xlarge | 4 vCPU | $0.2155 |
| c8a.2xlarge | 8 vCPU | $0.4311 |
| c8a.4xlarge | 16 vCPU | $0.8622 |
| c8a.8xlarge | 32 vCPU | $1.72 |
| c8a.12xlarge | 48 vCPU | $2.59 |
| c8a.16xlarge | 64 vCPU | $3.45 |
| c8a.24xlarge | 96 vCPU | $5.17 |
| c8a.48xlarge | 192 vCPU | $10.35 |