US best spot
N. Virginia
us-east-1
spot · avg $0.0332/hr
on-demand$0.1026
spot interrupt freq 5-10%
aws elastic compute cloud
c7a.large
4th Gen AMD EPYC processors (Genoa) with a maximum frequency of 3.7 GHz Compute-optimized instance family built on the AWS Nitro System. Features DDR5 memory (delivering 2.25x more bandwidth than the previous generation), and supports instruction sets like AVX-512, VNNI, and bfloat16. It offers up to 50 Gbps of networking bandwidth and up to 40 Gbps of Amazon EBS bandwidth
available for self-hosted runners on RunsOn
cpu speed · passmark single-thread
2,876pts
vcpus
2
physical threads
memory
3.7 GiB
ram
clock speed
Up to 3.7 GHz
max frequency
architecture
x86_64
x86_64
ec2 instance family: c7a
What the family is built for, the silicon underneath, and how to ask RunsOn for it.
c7a compute optimized
cpu type
AMD EPYC 9R14 Processor — 4th Gen AMD EPYC processors (Genoa) with a maximum frequency of 3.7 GHz
architecture
x86_64 · x86_64
highlights
Compute-optimized instance family built on the AWS Nitro System. Features DDR5 memory (delivering 2.25x more bandwidth than the previous generation), and supports instruction sets like AVX-512, VNNI, and bfloat16. It offers up to 50 Gbps of networking bandwidth and up to 40 Gbps of Amazon EBS bandwidth
released
October 2023
.github/workflows/ci.yml yaml
jobs: build: runs-on: - runs-on=${{ github.run_id }} - family=c7a - cpu=2
the label is a query — each line one constraint, resolved at launch. job labels →
availability & price by region
Spot is the average price RunsOn pays in your own AWS account — no per-minute markup. The bar shows how far under on-demand each region runs; the badge is the observed spot-interruption frequency.
US
Oregon
us-west-2
spot · avg $0.0355/hr
on-demand$0.1026
spot interrupt freq 5-10%
IE
Ireland
eu-west-1
spot · avg $0.0430/hr
on-demand$0.1101
spot interrupt freq 5-10%
DE
Frankfurt
eu-central-1
spot · avg $0.0511/hr
on-demand$0.1171
spot interrupt freq 10-15%
Spot prices are trailing averages per region and move with the market. On-demand is the list reference. Interrupt frequency is AWS's published spot-advisor band for this instance type.
about these benchmarks
CPU is the Passmark single-thread metric, run on a live c7a.large instance and averaged over many days so a single noisy run can't skew the score.
Pricing is normalized to the hourly rate AWS bills, then shown per region. Spot is the trailing average; savings is measured against the same region's on-demand list price.
This instance is launched the exact same way any RunsOn job launches it — ephemeral EC2 in your account, one CloudFormation stack, nothing to babysit.
run c7a.large in your own account.
The benchmark runs on the same RunsOn anyone can deploy. One CloudFormation stack, your AWS account, ~10 minutes.