Cloud instance comparison · Prices checked July 2026
AWS t3.xlarge vs Azure Standard_B4ms
Azure Standard_B4ms is cheaper than AWS t3.xlarge by $0.29/month (0.2% less), at matching specs of 4 vCPU and 16 GiB of memory. Azure Standard_B4ms runs $121.18/mo on-demand versus $121.47/mo for AWS t3.xlarge, based on Azure's eastus and AWS's us-east-1 baseline on-demand Linux pricing.
Specs & pricing side by side
| Spec | AWS t3.xlarge | Azure Standard_B4ms |
|---|---|---|
| vCPU | 4 | 4 |
| Memory | 16 GiB | 16 GiB |
| Region (baseline) | us-east-1 | eastus |
| Hourly (on-demand) | $0.1664 | $0.1660 |
| Monthly (730 hrs) | $121.47 | $121.18 |
| Price difference | Azure Standard_B4ms is $0.29/mo cheaper than AWS t3.xlarge (0.2% less) | |
Which one should you pick?
Pick Azure Standard_B4ms if price is your primary constraint — it's $0.29/mo cheaper for the same 4 vCPU / 16 GiB profile, which adds up to $3.50/year at steady utilization.
Pick AWS t3.xlarge if you're already committed to the AWS ecosystem — existing VPC/network setup, IAM policies, reserved capacity, or team expertise on AWS usually outweighs a 0% list-price gap on a single instance. Cross-provider migration cost rarely pays for itself on compute pricing alone.
Either way, this is a single-instance, on-demand comparison. Reserved/committed-use discounts (up to ~72% on both platforms) and your actual utilization pattern will move the real numbers — model your full workload with the calculator before deciding.
Frequently asked questions
Is AWS t3.xlarge cheaper than Azure Standard_B4ms?
Azure Standard_B4ms is cheaper. It costs $121.18/mo on-demand versus $121.47/mo for AWS t3.xlarge — a difference of $0.29/mo (0.2%). Both instances offer 4 vCPU and roughly 16 GiB of memory, so the comparison is apples-to-apples on specs.
What are the specs of AWS t3.xlarge?
AWS t3.xlarge provides 4 vCPU and 16 GiB of memory, priced at $0.1664/hour on-demand ($121.47/month at 730 hours) in the us-east-1 baseline region.
How much does AWS t3.xlarge cost per month compared to Azure Standard_B4ms?
At 730 hours/month, AWS t3.xlarge costs $121.47 and Azure Standard_B4ms costs $121.18. That is a monthly difference of $0.29, or $3.50/year.
Are AWS t3.xlarge and Azure Standard_B4ms dedicated or shared vCPU?
Both are burstable, shared-vCPU instances — they get a baseline CPU allocation and can burst above it, but sustained full-CPU performance is not guaranteed. This is an apples-to-apples comparison (both shared), but neither suits steady compute-bound workloads; for those, compare dedicated-vCPU families instead.
Prices checked July 2026. Baseline regions: AWS pricing uses us-east-1, Azure uses eastus. All prices are on-demand Linux, list rate, before reserved/committed-use discounts. See our methodology for pricing sources, update cadence, and mapping rules.
Model your full stack, not just one instance
A single instance is one line item. Use the free SpendArk calculator to compare AWS, Azure, GCP, and DigitalOcean across your whole architecture — compute, database, storage, and networking together.
Open the cloud cost calculator →Related comparisons
- AWS t3.xlarge vs GCP e2-standard-4
- Azure Standard_B4ms vs GCP e2-standard-4
- AWS t3.large vs Azure Standard_B2ms
- AWS t3.large vs GCP e2-standard-2
For a deeper dive on AWS vs Azure pricing beyond a single instance, read our full pricing comparison guide.