Eav4 sizes series

Article
11/15/2024

The Eav4-series run on 2nd Generation AMD EPYCTM 7452 (up to 3.35GHz) or 3rd Generation EPYCTM 7763v processors (up to 3.5GHz). 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.

Host specifications

Part	Quantity ^{Count Units}	Specs ^{SKU ID, Performance Units, etc.}
Processor	2 - 96 vCPUs	AMD EPYC 7452 (Rome) [x86-64] AMD EPYC 7763v (Milan) [x86-64]
Memory	16 - 672 GiB
Local Storage	4 - 32 Disks	16 - 672 GiB 3000 - 96000 IOPS 46 - 1000 MBps
Remote Storage	4 - 32 Disks	3200 - 80000 IOPS 48 - 1200 MBps
Network	2 - 8 NICs	2000 - 32000 Mbps
Accelerators	None

Feature support

Premium Storage: Not Supported
Premium Storage caching: Not Supported
Live Migration: Supported
Memory Preserving Updates: Supported
Generation 2 VMs: Supported
Generation 1 VMs: Supported
Accelerated Networking: Supported
Ephemeral OS Disk: Supported
Nested Virtualization: Not Supported

Sizes in series

vCPUs (Qty.) and Memory for each size

Size Name	vCPUs (Qty.)	Memory (GB)
Standard_E2a_v4	2	16
Standard_E4a_v4	4	32
Standard_E8a_v4	8	64
Standard_E16a_v4	16	128
Standard_E20a_v4	20	160
Standard_E32a_v4	32	256
Standard_E48a_v4	48	384
Standard_E64a_v4	64	512
Standard_E96a_v4	96	672

VM Basics resources

Check vCPU quotas

Local (temp) storage info for each size

Size Name	Max Temp Storage Disks (Qty.)	Temp Disk Size (GiB)	Temp Disk Random Read (RR)¹ IOPS	Temp Disk Random Read (RR)¹ Throughput (MB/s)	Temp Disk Random Write (RW)¹ Throughput (MB/s)
Standard_E2a_v4	4	16	3000	46	23
Standard_E4a_v4	8	32	6000	93	46
Standard_E8a_v4	16	64	12000	187	93
Standard_E16a_v4	32	128	24000	375	187
Standard_E20a_v4	32	160	30000	468	234
Standard_E32a_v4	32	256	48000	750	375
Standard_E48a_v4	32	384	96000	1000	500
Standard_E64a_v4	32	512	96000	1000	500
Standard_E96a_v4	32	672	96000	1000	500

Storage resources

Table definitions

¹Temp disk speed often differs between RR (Random Read) and RW (Random Write) operations. RR operations are typically faster than RW operations. The RW speed is usually slower than the RR speed on series where only the RR speed value is listed.
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.
To learn how to get the best storage performance for your VMs, see Virtual machine and disk performance.

Remote (uncached) storage info for each size

Size Name	Max Remote Storage Disks (Qty.)	Uncached Premium SSD Disk IOPS	Uncached Premium SSD Throughput (MB/s)	Uncached Premium SSD Burst¹ IOPS	Uncached Premium SSD Burst¹ Throughput (MB/s)
Standard_E2a_v4	4	3200	48	4000	200
Standard_E4a_v4	8	6400	96	8000	200
Standard_E8a_v4	16	12800	192	16000	400
Standard_E16a_v4	32	25600	384	32000	800
Standard_E20a_v4	32	32000	480	40000	1000
Standard_E32a_v4	32	51200	768	64000	1600
Standard_E48a_v4	32	76800	1148	80000	2000
Standard_E64a_v4	32	80000	1200	80000	2000
Standard_E96a_v4	32	80000	1200	80000	2000

Storage resources

Table definitions

¹Some sizes support bursting to temporarily increase disk performance. Burst speeds can be maintained for up to 30 minutes at a time.
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.
To learn how to get the best storage performance for your VMs, see Virtual machine and disk performance.

Network interface info for each size

Size Name	Max NICs (Qty.)	Max Network Bandwidth (Mb/s)
Standard_E2a_v4	2	2000
Standard_E4a_v4	2	4000
Standard_E8a_v4	4	8000
Standard_E16a_v4	8	10000
Standard_E20a_v4	8	12000
Standard_E32a_v4	8	16000
Standard_E48a_v4	8	24000
Standard_E64a_v4	8	32000
Standard_E96a_v4	8	32000

Networking resources

Table definitions

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 size information

List of all available sizes: Sizes

Pricing Calculator: Pricing Calculator

Information on Disk Types: Disk Types

Next steps

Take advantage of the latest performance and features available for your workloads by changing the size of a virtual machine.

Learn how to Monitor Azure virtual machines.

Eav4 sizes series

Host specifications

Feature support

Sizes in series

VM Basics resources

Other size information

Next steps

Additional resources