Compare Azure Virtual Machines

Name	Standard_B4s_v2	Standard_A4m_v2
Details	Standard is recommended tier B – Economical burstable 4 – The number of vCPUs s – Premium Storage capable v2 – version	Standard is recommended tier A – Entry-level VMs for dev/test 4 – The number of vCPUs m – The most amount of memory in a particular size v2 – version
vCPUs	4	4
CPU Architecture	x64	x64
Memory (GiB)	16	32
Hyper-V Generations	V1,V2	V1
ACUs	0	100
GPUs	0	0
Max Network Interfaces	3	4
RDMA Enabled	no	no
Accelerated Net	yes	no
OS Disk Size	1023 GiB	1023 GiB
Res Disk Size	0 GiB	40 GiB
Max Disks	8	8
Support Premium Disk	yes	no
Combined IOPS is a sum of all attached disk's IOPs	19000	4000
Uncached Disk IOPS	6400	6400
Combined Write is a sum of all attached disk's write throughtput	238 MiB/Sec	40 MiB/Sec
Combined Read is a sum of all attached disk's read throughtput	238 MiB/Sec	80 MiB/Sec
Avg Price Diff	1.00x	1.27x

Regional Prices

Region	Standard_B4s_v2	Standard_A4m_v2
Europe / Austria East (austriaeast)	n/a	0.2260
US / East US (eastus)	0.1660	n/a
US / East US 2 (eastus2)	0.1660	n/a
US / North Central US (northcentralus)	0.1660	n/a
US / West Central US (westcentralus)	n/a	0.2210
US / West US 2 (westus2)	0.1660	0.1990
US / West US 3 (westus3)	n/a	0.2080