m5zn.large

Custom 2nd Generation Intel Xeon Scalable Processors (Cascade Lake) with an all-core turbo frequency up to 4.5 GHz Up to 45% better single-threaded compute performance than M5 instances, 100 Gbps networking, Elastic Fabric Adapter (EFA) support, up to 19 Gbps throughput to Amazon EBS, and available as a bare metal option (`M5zn.metal`)

available for self-hosted runners on RunsOn

cpu speed · passmark single-thread

2,487pts

Intel(R) Xeon(R) Platinum 8252C CPU @ 3.80GHz (x86_64)
averaged over many days · higher is faster

vcpus

physical threads

memory

7.6 GiB

ram

clock speed

4.5 GHz

max frequency

architecture

x86_64

EC2 instance family: m5zn

What the family is built for, the silicon underneath, and how to ask RunsOn for it.

m5zn general purpose

cpu type

Intel Xeon Platinum 8252 — Custom 2nd Generation Intel Xeon Scalable Processors (Cascade Lake) with an all-core turbo frequency up to 4.5 GHz

architecture

x86_64 · x86_64

highlights

Up to 45% better single-threaded compute performance than M5 instances, 100 Gbps networking, Elastic Fabric Adapter (EFA) support, up to 19 Gbps throughput to Amazon EBS, and available as a bare metal option (`M5zn.metal`)

released

December 2020

.github/workflows/ci.yml yaml

jobs:
  build:
    runs-on:
      - runs-on=${{ github.run_id }}
      - family=m5zn
      - 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.

N. Virginia

us-east-1

spot · avg $0.0403/hr

on-demand$0.1652

savings vs on-demand66%

spot interrupt freq 5-10%

Oregon

us-west-2

spot · avg $0.0461/hr

on-demand$0.1652

savings vs on-demand69%

spot interrupt freq >20%

Ireland

eu-west-1

spot · avg $0.0731/hr

on-demand$0.1841

savings vs on-demand63%

spot interrupt freq <5%

Frankfurt

eu-central-1

best spot

spot · avg $0.0694/hr

on-demand$0.1979

savings vs on-demand70%

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 m5zn.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.

metricpassmark · single-thread

samples21 runs

regions4 · us-east-1, us-west-2, eu-west-1, eu-central-1

last updatedJuly 1, 2026

Run m5zn.large in your own account.

The benchmark runs on the same RunsOn anyone can deploy. One CloudFormation stack, your AWS account, ~10 minutes.

self-host → ← all ec2 instances