Azure compute unit (ACU)
The concept of the Azure Compute Unit (ACU) provides a way of comparing compute (CPU) performance across Azure SKUs. This will help you easily identify which SKU is most likely to satisfy your performance needs. ACU is currently standardized on a Small (Standard_A1) VM being 100 and all other SKUs then represent approximately how much faster that SKU can run a standard benchmark.
The ACU is only a guideline. The results for your workload may vary.
|SKU Family||ACU \ vCPU||vCPU: Core|
|A1 - A4||100||1:1|
|A5 - A7||100||1:1|
|A1_v2 - A8_v2||100||1:1|
|A2m_v2 - A8m_v2||100||1:1|
|A8 - A11||225*||1:1|
|D1 - D14||160||1:1|
|D1_v2 - D15_v2||210 - 250*||1:1|
|DS1 - DS14||160||1:1|
|DS1_v2 - DS15_v2||210-250*||1:1|
|F2s_v2 - F72s_v2||195-210*||2:1***|
|F1 - F16||210-250*||1:1|
|F1s - F16s||210-250*||1:1|
|G1 - G5||180 - 240*||1:1|
|GS1 - GS5||180 - 240*||1:1|
|H||290 - 300*||1:1|
|L4s - L32s||180 - 240*||1:1|
|L8s_v2 - L80s_v2||150 - 175**||2:1|
*ACUs use Intel® Turbo technology to increase CPU frequency and provide a performance increase. The amount of the performance increase can vary based on the VM size, workload, and other workloads running on the same host.
**ACUs use AMD® Boost technology to increase CPU frequency and provide a performance increase. The amount of the performance increase can vary based on the VM size, workload, and other workloads running on the same host.
***Hyper-threaded and capable of running nested virtualization
Here are links to more information about the different sizes: