Eav4 and Easv4-series

The Eav4-series and Easv4-series utilize AMD's 2.35Ghz EPYCTM 7452 processor in a multi-threaded configuration with up to 256MB L3 cache, increasing options for running most memory optimized workloads. The Eav4-series and Easv4-series have the same memory and disk configurations as the Ev3 & Esv3-series.

Eav4-series

ACU: 230 - 260
Premium Storage: Not Supported
Premium Storage caching: Not Supported
Live Migration: Supported
Memory Preserving Updates: Supported
VM Generation Support: Generation 1

Eav4-series sizes are based on the 2.35Ghz AMD EPYCTM 7452 processor that can achieve a boosted maximum frequency of 3.35GHz and use premium SSD. The Eav4-series sizes are ideal for memory-intensive enterprise applications. Data disk storage is billed separately from virtual machines. To use premium SSD, use the Easv4-series sizes. The pricing and billing meters for Easv4 sizes are the same as the Eav3-series.

Size vCPU Memory: GiB Temp storage (SSD) GiB Max data disks Max temp storage throughput: IOPS / Read MBps / Write MBps Max NICs Expected network bandwidth (Mbps)
Standard_E2a_v4 2 16 50 4 3000 / 46 / 23 2 1000
Standard_E4a_v4 4 32 100 8 6000 / 93 / 46 2 2000
Standard_E8a_v4 8 64 200 16 12000 / 187 / 93 4 4000
Standard_E16a_v4 16 128 400 32 24000 / 375 / 187 8 8000
Standard_E20a_v4 20 160 500 32 30000 / 468 / 234 8 10000
Standard_E32a_v4 32 256 800 32 48000 / 750 / 375 8 16000
Standard_E48a_v4 48 384 1200 32 96000 / 1000 (500) 8 24000
Standard_E64a_v4 64 512 1600 32 96000 / 1000 (500) 8 30000
Standard_E96a_v4 96 672 2400 32 96000 / 1000 (500) 8 30000

Easv4-series

ACU: 230 - 260
Premium Storage: Supported
Premium Storage caching: Supported
Live Migration: Supported
Memory Preserving Updates: Supported
VM Generation Support: Generation 1

Easv4-series sizes are based on the 2.35Ghz AMD EPYCTM 7452 processor that can achieve a boosted maximum frequency of 3.35GHz and use premium SSD. The Easv4-series sizes are ideal for memory-intensive enterprise applications.

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_E2as_v4 2 16 32 4 4000 / 32 (50) 3200 / 48 2 1000
Standard_E4as_v4 4 32 64 8 8000 / 64 (100) 6400 / 96 2 2000
Standard_E8as_v4 8 64 128 16 16000 / 128 (200) 12800 / 192 4 4000
Standard_E16as_v4 16 128 256 32 32000 / 255 (400) 25600 / 384 8 8000
Standard_E20as_v4 20 160 320 32 40000 / 320 (500) 32000 / 480 8 10000
Standard_E32as_v4 32 256 512 32 64000 / 510 (800) 51200 / 768 8 16000
Standard_E48as_v4 48 384 768 32 96000 / 1020 (1200) 76800 / 1148 8 24000
Standard_E64as_v4 64 512 1024 32 128000 / 1020 (1600) 80000 / 1200 8 30000
Standard_E96as_v4 96 672 1344 32 192000 / 1020 (2400) 80000 / 1200 8 30000

Size table definitions

  • Storage capacity is shown in units of GiB or 1024^3 bytes. When you compare 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 two disks per vCPU.

  • Expected network bandwidth is the maximum aggregated bandwidth allocated per VM type across all NICs, for all destinations. For more information, see Virtual machine network bandwidth.

    Upper limits aren't guaranteed. Limits offer guidance for selecting the right VM type for the intended application. Actual network performance will depend on several factors including network congestion, application loads, and network settings. For information on optimizing network throughput, see Optimize network throughput for Azure virtual machines. To achieve the expected network performance on Linux or Windows, you may need to select a specific version or optimize your VM. For more information, see Bandwidth/Throughput testing (NTTTCP).

Other sizes and information

Pricing Calculator: Pricing Calculator

More information on Disks Types : Disk Types

Next steps

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