Quick verdict
AWS and Microsoft Azure are both mature, global cloud platforms that can run almost any workload. AWS offers the broadest catalog and a large third-party ecosystem, which suits cloud-native and startup teams. Azure integrates tightly with Microsoft 365, Entra ID, Windows Server and .NET, which often makes it the easier choice for Microsoft-centric enterprises and hybrid setups.
This comparison focuses on durable differences rather than service counts or list prices, which change constantly. If you already run on one provider, the switching cost usually outweighs small feature gaps, so the decision matters most for new products and major migrations.
AWS vs Microsoft Azure, side by side
| Criterion | AWS | Microsoft Azure |
|---|---|---|
| Core strength | Breadth of services and deep cloud-native tooling | Integration with the Microsoft enterprise stack |
| Identity | AWS IAM plus IAM Identity Center for workforce access | Microsoft Entra ID, shared with Microsoft 365 and Windows |
| Kubernetes | Amazon EKS | Azure Kubernetes Service (AKS) |
| Serverless | AWS Lambda, Step Functions, EventBridge | Azure Functions, Logic Apps, Event Grid |
| Data warehousing | Amazon Redshift, Athena, AWS Glue | Microsoft Fabric and Azure Synapse Analytics |
| Generative AI | Amazon Bedrock with multiple model providers | Microsoft Foundry, including Azure OpenAI models |
| Hybrid cloud | AWS Outposts and EKS Anywhere | Azure Arc and Azure Stack, strong hybrid story |
| Licensing | Bring your own license options for Windows and SQL Server | Azure Hybrid Benefit reuses existing Windows and SQL licenses |
| Ecosystem | Very large partner, tooling and community content base | Strong with Microsoft partners and enterprise IT teams |
| Learning curve | Many services and options; console can feel fragmented | Familiar for Microsoft admins; portal organizes by resource groups |
Choose AWS when
- You are building a new cloud-native product with no strong Microsoft dependency.
- Your engineers already know AWS services and tooling.
- You want the widest choice of managed services and third-party integrations.
- You need specific AWS services such as DynamoDB, Lambda or Bedrock.
- Your hiring market has more AWS-certified engineers.
Choose Microsoft Azure when
- Your company runs Microsoft 365, Entra ID and Windows Server already.
- Your applications are built on .NET and SQL Server.
- You can reuse existing Microsoft licenses through Azure Hybrid Benefit.
- You need strong hybrid management across on-premises and cloud with Azure Arc.
- You have an existing Microsoft enterprise agreement with committed spend.
How do AWS and Azure pricing compare?
Both use pay-as-you-go pricing with discounts for commitment: AWS Savings Plans and Reserved Instances, Azure Reservations and Savings Plans. Spot or low-priority capacity is available on both. For equivalent compute and storage the list prices are usually close, so the real difference comes from licensing, enterprise discounts, egress patterns and how well you size resources.
Windows and SQL Server workloads are often cheaper on Azure when you already own licenses with Software Assurance. Linux-heavy, container-based workloads tend to cost about the same on either. The biggest savings come from FinOps discipline, not from picking a provider.
Which is better for enterprise and hybrid?
Azure's advantage in large enterprises is identity and familiarity. Entra ID already holds users and groups for Microsoft 365, so cloud access policies, conditional access and single sign-on fit into existing processes. Azure Arc extends policy and monitoring to servers and Kubernetes clusters running elsewhere, including other clouds.
AWS is equally capable for enterprises and is widely used in regulated industries. It tends to win where engineering teams lead the decision and want mature primitives, while Azure tends to win where central IT leads and Microsoft is already the strategic vendor. Nexzem builds and migrates workloads on both platforms.
Final verdict
Neither AWS nor Azure is objectively better. Choose AWS for new cloud-native builds, broad service choice and a large hiring pool of AWS engineers. Choose Azure when your organization already depends on Microsoft 365, Entra ID, .NET or SQL Server, or when license reuse and hybrid management through Azure Arc matter. Existing skills and agreements usually decide the outcome more than any single feature.
Terms in this comparison