Smarter migrations start with smarter sizing - cut costs, boost efficiency, and migrate seamlessly with B-Series and Cobalt 100 VM support in Azure Migrate.
Introduction
Migrating to the cloud shouldn’t mean overspending. Many workloads — like dev/test environments, small databases, and low-traffic apps — don’t need constant CPU power. So why pay for performance you rarely use?
Azure Migrate now supports B-Series and Cobalt 100 VMs, empowering you to plan migrations smarter, optimize costs, and get the right performance fit for every workload.
B-Series VMs: Burstable power, lower costs
B-Series VMs are designed for workloads with variable CPU usage, delivering cost efficiency without compromising flexibility.
Key Benefits:
- Baseline Performance: Pay for a low, steady CPU baseline.
- Burst Capability: Scale up temporarily using credits accumulated during idle periods.
- Cost Efficiency: Ideal for workloads that stay idle most of the time but occasionally need high CPU, such as dev/test environments, small web servers, and batch jobs.
Why it matters:
- Perfect for variable CPU workloads.
- Save significantly by paying only for what you use.
- Now supported in Azure Migrate assessments for accurate cost planning.
A comparison of general-purpose D-series VM and B-series VM with other properties remaining same
| VM Type / SKU | vCPUs / RAM | Hourly Rate (USD) | Monthly Estimate* | Notes |
|---|---|---|---|---|
| Standard_B8s v2 (B-series) | 8 vCPUs, 32 GiB RAM | ~$270.10 (with Windows License) | Burstable VM, lower baseline cost | |
| D8s v4 (D-series, newer gen) | 8 vCPUs, 32 GiB RAM | ~$0.384/hr | ~$548.96 (with Windows License) | General purpose D series |
You can save up to 50% if your workloads have occasional spikes in performance requirements.
Cobalt 100 VMs: Native power for ARM64 workloads
Cobalt 100 VMs are ARM-native virtual machines optimized for modern, energy-efficient workloads. They’re the ideal landing zone for ARM64-based servers running on-premises.
Key Benefits:
- Architecture Alignment: Migrate ARM64 workloads seamlessly, no re-architecting required.
- Performance Gains: Benefit from ARM-native optimizations for better efficiency.
- Cost Advantages: Combine ARM64 efficiency with Azure’s flexible pricing to achieve more value per core.
Why it matters:
- Ideal for ARM64-based servers and applications.
- Unlock better performance-per-watt efficiency.
- Simplify planning with ARM64-ready assessments in Azure Migrate.
Ready to get started?
Don’t let high costs slow your migration. Start leveraging B-Series and Cobalt 100 VM support in Azure Migrate today.
👉 Learn more and get started: Assessment Properties – Azure Migrate | Microsoft Learn
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