Ev4 sizes series

Ev4-series sizes run on Intel® Xeon® Platinum 8573C (Emerald Rapids), Intel® Xeon® Platinum 8473C (Sapphire Rapids), Intel® Xeon® Platinum 8370C (Ice Lake), or Intel® Xeon® Platinum 8272CL (Cascade Lake). The Ev4-series instances are ideal for memory-intensive enterprise applications. Ev4-series VMs feature Intel® Hyper-Threading Technology.

Remote Data disk storage is billed separately from virtual machines. To use premium storage disks, use the Esv4 sizes. The pricing and billing meters for Esv4 sizes are the same as Ev4-series.

Host specifications

Part	Quantity ^{Count Units}	Specs ^{SKU ID, Performance Units, etc.}
Processor	2 - 64 vCPUs	Intel Xeon 8473C (Sapphire Rapids) [x86-64] Intel Xeon Platinum 8370C (Ice Lake) [x86-64] Intel Xeon Platinum 8272CL (Cascade Lake) [x86-64] Intel Xeon Platinum 8573C (Emerald Rapids) [x86-64]
Memory	16 - 504 GiB
Local Storage	None
Remote Storage	4 - 32 Disks	3200 - 80000 IOPS 48 - 1500 MBps
Network	2 - 8 NICs	5000 - 30000 Mbps Interfaces: NetVSC, ConnectX, MANA
Accelerators	None

For features supported by this series, see the Feature support section.

Sizes in series

vCPUs (Qty.) and Memory for each size

Size Name	vCPUs (Qty.)	Memory (GB)
Standard_E2_v4	2	16
Standard_E4_v4	4	32
Standard_E8_v4	8	64
Standard_E16_v4	16	128
Standard_E20_v4	20	160
Standard_E32_v4	32	256
Standard_E48_v4	48	384
Standard_E64_v4	64	504

VM Basics resources

Check vCPU quotas

Remote (uncached) storage info for each size

Size Name	Max Remote Storage Disks (Qty.)	Uncached Premium SSD IOPS	Uncached Premium SSD Throughput (MB/s)	Uncached Premium SSD Burst¹ IOPS	Uncached Premium SSD Burst¹ Throughput (MB/s)
Standard_E2_v4	4	3200	48	4000	200
Standard_E4_v4	8	6400	96	8000	200
Standard_E8_v4	16	12800	192	16000	400
Standard_E16_v4	32	25600	384	32000	800
Standard_E20_v4	32	32000	480	40000	1000
Standard_E32_v4	32	51200	768	64000	1600
Standard_E48_v4	32	76800	1152	80000	2000
Standard_E64_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_E2_v4	2	5000
Standard_E4_v4	2	10000
Standard_E8_v4	4	12500
Standard_E16_v4	8	12500
Standard_E20_v4	8	10000
Standard_E32_v4	8	16000
Standard_E48_v4	8	24000
Standard_E64_v4	8	30000

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).

Feature support

Feature name	Support status
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	Not Supported
Nested Virtualization	Supported

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.

Utilize Microsoft's in-house designed ARM processors with Azure Cobalt VMs.

Learn how to Monitor Azure virtual machines.

Feedback

Was this page helpful?

Last updated on 2026-03-10