Compute optimized

F-series is based on the 2.4 GHz Intel Xeon® E5-2673 v3 (Haswell) processor, which can achieve clock speeds as high as 3.1 GHz with the Intel Turbo Boost Technology 2.0. This is the same CPU performance as the Dv2-series of VMs. At a lower per-hour list price, the F-series is the best value in price-performance in the Azure portfolio based on the Azure Compute Unit (ACU) per vCPU.

F-series VMs are an excellent choice for workloads that demand faster CPUs but do not need as much memory or temporary storage per vCPU. Workloads such as analytics, gaming servers, web servers, and batch processing will benefit from the value of the F-series.

The Fs-series provides all the advantages of the F-series, in addition to Premium storage.

Fs-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 performance (Mbps)
Standard_F1s 1 2 4 2 4,000 / 32 (12) 3,200 / 48 2 / 750
Standard_F2s 2 4 8 4 8,000 / 64 (24) 6,400 / 96 2 / 1500
Standard_F4s 4 8 16 8 16,000 / 128 (48) 12,800 / 192 4 / 3000
Standard_F8s 8 16 32 16 32,000 / 256 (96) 25,600 / 384 8 / 6000
Standard_F16s 16 32 64 32 64,000 / 512 (192) 51,200 / 768 8 / 6000-12000 †

MBps = 10^6 bytes per second, and GiB = 1024^3 bytes.

*The maximum disk throughput (IOPS or MBps) possible with a Fs series VM may be limited by the number, size and striping of the attached disk(s). For details, see Premium Storage: High-performance storage for Azure virtual machine workloads.


F-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 performance (Mbps)
Standard_F1 1 2 16 3000 / 46 / 23 2 / 2x500 2 / 750
Standard_F2 2 4 32 6000 / 93 / 46 4 / 4x500 2 / 1500
Standard_F4 4 8 64 12000 / 187 / 93 8 / 8x500 4 / 3000
Standard_F8 8 16 128 24000 / 375 / 187 16 / 16x500 8 / 6000
Standard_F16 16 32 256 48000 / 750 / 375 32 / 32x500 8 / 6000 - 12000 †


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.
  • Expected network performance 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.