General purpose virtual machine sizes

General purpose VM sizes provide balanced CPU-to-memory ratio. Ideal for testing and development, small to medium databases, and low to medium traffic web servers. This article provides information about the number of vCPUs, data disks and NICs as well as storage throughput and network bandwidth for each size in this grouping.

  • The A-series and Av2-series VMs can be deployed on a variety of hardware types and processors. The size is throttled, based upon the hardware, to offer consistent processor performance for the running instance, regardless of the hardware it is deployed on. To determine the physical hardware on which this size is deployed, query the virtual hardware from within the Virtual Machine.

  • D-series VMs are designed to run applications that demand higher compute power and temporary disk performance. D-series VMs provide faster processors, a higher memory-to-vCPU ratio, and a solid-state drive (SSD) for the temporary disk. For details, see the announcement on the Azure blog, New D-Series Virtual Machine Sizes.

  • Dv3-series, Dv2-series, a follow-on to the original D-series, features a more powerful CPU. The Dv2-series CPU is about 35% faster than the D-series CPU. It is based on the latest generation 2.4 GHz Intel Xeon® E5-2673 v3 (Haswell) processor, and with the Intel Turbo Boost Technology 2.0, can go up to 3.1 GHz. The Dv2-series has the same memory and disk configurations as the D-series.

  • The basic tier sizes are primarily for development workloads and other applications that don't require load balancing, auto-scaling, or memory-intensive virtual machines. For information about VM sizes that are more appropriate for production applications, see (Sizes for virtual machines)[virtual-machines-size-specs.md] and for VM pricing information, see Virtual Machines Pricing.

B-series

The B-series burstable VMs are ideal for workloads that do not need the full performance of the CPU continuously, like web servers, small databases and development and test environments. These workloads typically have burstable performance requirements. The B-Series provides these customers the ability to purchase a VM size with a price conscience baseline performance that allows the VM instance to build up credits when the VM is utilizing less than its base performance. When the VM has accumulated credit, the VM can burst above the VM’s baseline using up to 100% of the CPU when your application requires the higher CPU performance.

Size vCPU Memory: GiB Local SSD: GiB Base Perf of a Core Credits banked / hour Max Banked Credits Max data disks Max local disk perf: IOPS / MBps Max uncached disk perf: IOPS / MBps Max NICs
Standard_B1s 1 1 4 10% 6 144 2 400 / 10 320 / 10 2
Standard_B1ms 1 2 4 20% 12 288 2 800 / 10 640 / 10 2
Standard_B2s 2 4 8 40% 24 576 4 1600 / 15 1280 / 15 3
Standard_B2ms 2 8 16 60% 36 864 4 2400 / 22.5 1920 / 22.5 3
Standard_B4ms 4 16 32 90% 54 1296 8 3600 / 35 2880 / 35 4
Standard_B8ms 8 32 64 135% 81 1944 16 4320 / 50 4320 / 50 4

Dsv3-series 1

ACU: 160-190

Dsv3-series sizes are based on the 2.4 GHz Intel Xeon® E5-2673 v3 (Haswell) processor or the latest 2.3 GHz Intel XEON ® E5-2673 v4 (Broadwell) processor that can achieve 3.5GHz with Intel Turbo Boost Technology 2.0 and use premium storage. The Dsv3-series sizes offer a combination of vCPU, memory, and temporary storage for most production workloads.

Size vCPU Memory: GiB Temp storage (SSD) GiB Max data disks Max cached and temp storage throughput: IOPS / MBps (cache size in GiB) Max uncached disk throughput: IOPS / MBps Max NICs / Expected network bandwidth (Mbps)
Standard_D2s_v3 2 8 16 4 4,000 / 32 (50) 3,200 / 48 2 / moderate
Standard_D4s_v3 4 16 32 8 8,000 / 64 (100) 6,400 / 96 2 / moderate
Standard_D8s_v3 8 32 64 16 16,000 / 128 (200) 12,800 / 192 4 / high
Standard_D16s_v3 16 64 128 32 32,000 / 256 (400) 25,600 / 384 8 / high
Standard_D32s_v3 32 128 256 32 64,000 / 512 (800) 51,200 / 768 8 / Extremely high
Standard_D64s_v3 64 256 512 32 128,000 / 1024 (1600) 80,000 / 1200 8 / Extremely high

1 Dsv3-series VM’s feature Intel® Hyper-Threading Technology

Dv3-series 1

ACU: 160-190

Dv3-series sizes are based on the 2.4 GHz Intel Xeon® E5-2673 v3 (Haswell) processor or 2.3 GHz Intel XEON ® E5-2673 v4 (Broadwell) processor that can achieve 3.5GHz with Intel Turbo Boost Technology 2.0. The Dv3-series sizes offer a combination of vCPU, memory, and temporary storage for most production workloads.

Data disk storage is billed separately from virtual machines. To use premium storage disks, use the Dsv3 sizes. The pricing and billing meters for Dsv3 sizes are the same as Dv3-series.

Size vCPU Memory: GiB Temp storage (SSD) GiB Max data disks Max temp storage throughput: IOPS / Read MBps / Write MBps Max NICs / Network bandwidth
Standard_D2_v3 2 8 50 4 3000/46/23 2 / moderate
Standard_D4_v3 4 16 100 8 6000/93/46 2 / moderate
Standard_D8_v3 8 32 200 16 12000/187/93 4 / high
Standard_D16_v3 16 64 400 32 24000/375/187 8 / high
Standard_D32_v3 32 128 800 32 48000/750/375 8 / Extremely high
Standard_D64_v3 64 256 1600 32 96000/1000/500 8 / Extremely high

1 Dv3-series VM’s feature Intel® Hyper-Threading Technology

DSv2-series

ACU: 210-250

Size vCPU Memory: GiB Temp storage (SSD) GiB Max data disks Max cached and temp storage throughput: IOPS / MBps (cache size in GiB) Max uncached disk throughput: IOPS / MBps Max NICs / Expected network bandwidth (Mbps)
Standard_DS1_v2 1 3.5 7 4 4,000 / 32 (43) 3,200 / 48 2 / 750
Standard_DS2_v2 2 7 14 8 8,000 / 64 (86) 6,400 / 96 2 / 1500
Standard_DS3_v2 4 14 28 16 16,000 / 128 (172) 12,800 / 192 4 / 3000
Standard_DS4_v2 8 28 56 32 32,000 / 256 (344) 25,600 / 384 8 / 6000
Standard_DS5_v2 16 56 112 64 64,000 / 512 (688) 51,200 / 768 8 / 6000 - 12000 †

Dv2-series

ACU: 210-250

Size vCPU Memory: GiB Temp storage (SSD) GiB Max temp storage throughput: IOPS / Read MBps / Write MBps Max data disks / throughput: IOPS Max NICs / Expected network bandwidth (Mbps)
Standard_D1_v2 1 3.5 50 3000 / 46 / 23 4 / 4x500 2 / 750
Standard_D2_v2 2 7 100 6000 / 93 / 46 8 / 8x500 2 / 1500
Standard_D3_v2 4 14 200 12000 / 187 / 93 16 / 16x500 4 / 3000
Standard_D4_v2 8 28 400 24000 / 375 / 187 32 / 32x500 8 / 6000
Standard_D5_v2 16 56 800 48000 / 750 / 375 64 / 64x500 8 / 6000 - 12000 †


DS-series

ACU: 160

Size vCPU Memory: GiB Temp storage (SSD) GiB Max data disks Max cached and temp storage throughput: IOPS / MBps (cache size in GiB) Max uncached disk throughput: IOPS / MBps Max NICs / Expected network bandwidth (Mbps)
Standard_DS1 1 3.5 7 4 4,000 / 32 (43) 3,200 / 32 2 / 500
Standard_DS2 2 7 14 8 8,000 / 64 (86) 6,400 / 64 2 / 1000
Standard_DS3 4 14 28 16 16,000 / 128 (172) 12,800 / 128 4 / 2000
Standard_DS4 8 28 56 32 32,000 / 256 (344) 25,600 / 256 8 / 4000


D-series

ACU: 160

Size vCPU Memory: GiB Temp storage (SSD) GiB Max temp storage throughput: IOPS / Read MBps / Write MBps Max data disks / throughput: IOPS Max NICs / Expected network bandwidth (Mbps)
Standard_D1 1 3.5 50 3000 / 46 / 23 4 / 4x500 2 / 500
Standard_D2 2 7 100 6000 / 93 / 46 8 / 8x500 2 / 1000
Standard_D3 4 14 200 12000 / 187 / 93 16 / 16x500 4 / 2000
Standard_D4 8 28 400 24000 / 375 / 187 32 / 32x500 8 / 4000


Av2-series

ACU: 100

Size vCPU Memory: GiB Temp storage (SSD) GiB Max temp storage throughput: IOPS / Read MBps / Write MBps Max data disks / throughput: IOPS Max NICs / Expected network bandwidth (Mbps)
Standard_A1_v2 1 2 10 1000 / 20 / 10 2 / 2x500 2 / 250
Standard_A2_v2 2 4 20 2000 / 40 / 20 4 / 4x500 2 / 500
Standard_A4_v2 4 8 40 4000 / 80 / 40 8 / 8x500 4 / 1000
Standard_A8_v2 8 16 80 8000 / 160 / 80 16 / 16x500 8 / 2000
Standard_A2m_v2 2 16 20 2000 / 40 / 20 4 / 4x500 2 / 500
Standard_A4m_v2 4 32 40 4000 / 80 / 40 8 / 8x500 4 / 1000
Standard_A8m_v2 8 64 80 8000 / 160 / 80 16 / 16x500 8 / 2000


A-series

ACU: 50-100

Size vCPU Memory: GiB Temp storage (HDD): GiB Max data disks Max data disk throughput: IOPS Max NICs / Expected network bandwidth (Mbps)
Standard_A0 1 1 0.768 20 1 1x500 2 / 100
Standard_A1 1 1.75 70 2 2x500 2 / 500
Standard_A2 2 3.5 135 4 4x500 2 / 500
Standard_A3 4 7 285 8 8x500 2 / 1000
Standard_A4 8 14 605 16 16x500 4 / 2000
Standard_A5 2 14 135 4 4x500 2 / 500
Standard_A6 4 28 285 8 8x500 2 / 1000
Standard_A7 8 56 605 16 16x500 4 / 2000


1 The A0 size is over-subscribed on the physical hardware. For this specific size only, other customer deployments may impact the performance of your running workload. The relative performance is outlined below as the expected baseline, subject to an approximate variability of 15 percent.

Standard A0 - A4 using CLI and PowerShell

In the classic deployment model, some VM size names are slightly different in CLI and PowerShell:

  • Standard_A0 is ExtraSmall
  • Standard_A1 is Small
  • Standard_A2 is Medium
  • Standard_A3 is Large
  • Standard_A4 is ExtraLarge

Basic A

Size – Size\Name vCPU Memory NICs (Max) Max temporary disk size Max. data disks 1023 GB each) Max. IOPS (300 per disk)
A0\Basic_A0 1 768 MB 2 20 GB 1 1x300
A1\Basic_A1 1 1.75 GB 2 40 GB 2 2x300
A2\Basic_A2 2 3.5 GB 2 60 GB 4 4x300
A3\Basic_A3 4 7 GB 2 120 GB 8 8x300
A4\Basic_A4 8 14 GB 2 240 GB 16 16x300

Size table definitions

  • Storage capacity is shown in units of GiB or 1024^3 bytes. When comparing disks measured in GB (1000^3 bytes) to disks measured in GiB (1024^3) remember that capacity numbers given in GiB may appear smaller. For example, 1023 GiB = 1098.4 GB
  • Disk throughput is measured in input/output operations per second (IOPS) and MBps where MBps = 10^6 bytes/sec.
  • Data disks can operate in cached or uncached modes. For cached data disk operation, the host cache mode is set to ReadOnly or ReadWrite. For uncached data disk operation, the host cache mode is set to None.
  • If you want to get the best performance for your VMs, you should limit the number of data disks to 2 disks per vCPU.
  • Expected network bandwidth is the maximum aggregated bandwidth allocated per VM type across all NICs, for all destinations. Upper limits are not guaranteed, but are intended to provide guidance for selecting the right VM type for the intended application. Actual network performance will depend on a variety of factors including network congestion, application loads, and network settings. For information on optimizing network throughput, see Optimizing network throughput for Windows and Linux. To achieve the expected network performance on Linux or Windows, it may be necessary to select a specific version or optimize your VM. For more information, see How to reliably test for virtual machine throughput.

  • † 16 vCPU performance will consistently reach the upper limit in an upcoming release.

Other sizes

Next steps

Learn more about how Azure compute units (ACU) can help you compare compute performance across Azure SKUs.