Compute optimized

F-series is based on the 2.4 GHz Intel XeonĀ® 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 core.

F-series VMs are an excellent choice for workloads that demand faster CPUs but do not need as much memory or local SSD per CPU core. 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 CPU cores Memory: GiB Local SSD: GiB Max data disks Max cached and local disk throughput: IOPS / MBps (cache size in GiB) Max uncached disk throughput: IOPS / MBps Max NICs / Network bandwidth
Standard_F1s 1 2 4 2 4,000 / 32 (12) 3,200 / 48 2 / moderate
Standard_F2s 2 4 8 4 8,000 / 64 (24) 6,400 / 96 2 / high
Standard_F4s 4 8 16 8 16,000 / 128 (48) 12,800 / 192 4 / high
Standard_F8s 8 16 32 16 32,000 / 256 (96) 25,600 / 384 8 / high
Standard_F16s 16 32 64 32 64,000 / 512 (192) 51,200 / 768 8 / extremely high

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 CPU cores Memory: GiB Local SSD: GiB Max local disk throughput: IOPS / Read MBps / Write MBps Max data disks / throughput: IOPS Max NICs / Network bandwidth
Standard_F1 1 2 16 3000 / 46 / 23 2 / 2x500 2 / moderate
Standard_F2 2 4 32 6000 / 93 / 46 4 / 4x500 2 / high
Standard_F4 4 8 64 12000 / 187 / 93 8 / 8x500 4 / high
Standard_F8 8 16 128 24000 / 375 / 187 16 / 16x500 8 / high
Standard_F16 16 32 256 48000 / 750 / 375 32 / 32x500 8 / extremely high


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.
  • Maximum network bandwidth is the maximum aggregated bandwidth allocated and assigned per VM type. The maximum bandwidth provides guidance for selecting the right VM type to ensure adequate network capacity is available. When moving between Low, Moderate, High and Very High, the throughput will increase accordingly. Actual network performance will depend on many factors including network and application loads, and application network settings.

Other sizes

Next steps

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