The Dav4-series run on 2nd Generation AMD EPYC™ 7452 (up to 3.35GHz) or 3rd Generation EPYC™ 7763v processors (up to 3.5GHz). The Dav4-series sizes offer a combination of vCPU, memory and temporary storage for most production workloads. Data disk storage is billed separately from virtual machines. To use premium SSD, use the Dasv4 sizes. The pricing and billing meters for Dasv4 sizes are the same as the Dav4-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 |
8 - 384 GiB |
|
| Local Storage |
1 Disk |
50 - 2400 GiB
3000 - 96000 IOPS (RR)
46 - 1000 MBps (RR) |
| Remote Storage |
4 - 32 Disks |
3200 - 80000 IOPS
48 - 1200 MBps |
| Network |
2 - 8 NICs |
2000 - 40000 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_D2a_v41 |
2 |
8 |
| Standard_D4a_v4 |
4 |
16 |
| Standard_D8a_v4 |
8 |
32 |
| Standard_D16a_v4 |
16 |
64 |
| Standard_D32a_v4 |
32 |
128 |
| Standard_D48a_v4 |
48 |
192 |
| Standard_D64a_v4 |
64 |
256 |
| Standard_D96a_v4 |
96 |
384 |
VM Basics resources
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_D2a_v41 |
1 |
50 |
3000 |
46 |
23 |
| Standard_D4a_v4 |
1 |
100 |
6000 |
93 |
46 |
| Standard_D8a_v4 |
1 |
200 |
12000 |
187 |
93 |
| Standard_D16a_v4 |
1 |
400 |
24000 |
375 |
187 |
| Standard_D32a_v4 |
1 |
800 |
48000 |
750 |
375 |
| Standard_D48a_v4 |
1 |
1200 |
96000 |
1000 |
500 |
| Standard_D64a_v4 |
1 |
1600 |
96000 |
1000 |
500 |
| Standard_D96a_v4 |
1 |
2400 |
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_D2a_v41 |
4 |
3200 |
48 |
4000 |
200 |
| Standard_D4a_v4 |
8 |
6400 |
96 |
8000 |
200 |
| Standard_D8a_v4 |
16 |
12800 |
192 |
16000 |
400 |
| Standard_D16a_v4 |
32 |
25600 |
384 |
32000 |
800 |
| Standard_D32a_v4 |
32 |
51200 |
768 |
64000 |
1600 |
| Standard_D48a_v4 |
32 |
76800 |
1148 |
80000 |
2000 |
| Standard_D64a_v4 |
32 |
80000 |
1200 |
80000 |
2000 |
| Standard_D96a_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_D2a_v41 |
2 |
2000 |
| Standard_D4a_v4 |
2 |
4000 |
| Standard_D8a_v4 |
4 |
8000 |
| Standard_D16a_v4 |
8 |
10000 |
| Standard_D32a_v4 |
8 |
16000 |
| Standard_D48a_v4 |
8 |
24000 |
| Standard_D64a_v4 |
8 |
32000 |
| Standard_D96a_v4 |
8 |
40000 |
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).
Accelerator (GPUs, FPGAs, etc.) info for each size
Note
No accelerators are present in this series.
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.