US best spot
N. Virginia
us-east-1
spot · avg $0.0444/hr
on-demand$0.1860
spot interrupt freq >20%
z1d.large
Custom Intel® Xeon® Scalable processor (Skylake 8151) Delivers a sustained all-core frequency of up to 4.0 GHz, the highest available in the cloud at its release, making it a frequency-optimized instance. It features a high memory to vCPU ratio (1:8) and includes up to 1.8 TB of local NVMe SSD instance storage. The instance is built on the AWS Nitro System. It is ideal for workloads requiring high single-thread performance, such as Electronic Design Automation (EDA) and certain relational database applications with high per-core licensing costs
available for self-hosted runners on RunsOn
cpu speed · passmark single-thread
2,304pts
vcpus
2
physical threads
memory
15.4 GiB
ram
clock speed
4 GHz
max frequency
architecture
x86_64
x86_64
EC2 instance family: z1d
What the family is built for, the silicon underneath, and how to ask RunsOn for it.
z1d memory optimized
cpu type
Intel Xeon Platinum 8151 — Custom Intel® Xeon® Scalable processor (Skylake 8151)
architecture
x86_64 · x86_64
highlights
Delivers a sustained all-core frequency of up to 4.0 GHz, the highest available in the cloud at its release, making it a frequency-optimized instance. It features a high memory to vCPU ratio (1:8) and includes up to 1.8 TB of local NVMe SSD instance storage. The instance is built on the AWS Nitro System. It is ideal for workloads requiring high single-thread performance, such as Electronic Design Automation (EDA) and certain relational database applications with high per-core licensing costs
released
July 2018
Deprecated: No
.github/workflows/ci.yml yaml
jobs: build: runs-on: - runs-on=${{ github.run_id }} - family=z1d - 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 $0.0405/hr
on-demand$0.1860
spot interrupt freq >20%
IE
Ireland
eu-west-1
spot · avg $0.0714/hr
on-demand$0.2080
spot interrupt freq >20%
DE
Frankfurt
eu-central-1
spot · avg $0.0871/hr
on-demand$0.2250
spot interrupt freq >20%
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 z1d.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 z1d.large in your own account.
The benchmark runs on the same RunsOn anyone can deploy. One CloudFormation stack, your AWS account, ~10 minutes.