Dav4 and Dasv4-series
Applies to: ✔️ Linux VMs ✔️ Windows VMs ✔️ Flexible scale sets ✔️ Uniform scale sets
The Dav4-series and Dasv4-series run on 2nd Generation AMD EPYCTM 7452 or 3rd Generation EPYCTM 7763v processors in a multi-threaded configuration. The Dav4-series and Dasv4-series have the same memory and disk configurations as the D & Dsv3-series.
Dav4-series
The Dav4-series run on 2nd Generation AMD EPYCTM 7452 (up to 3.35GHz) or 3rd Generation EPYCTM 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.
ACU: 230-260
Premium Storage: Not Supported
Premium Storage caching: Not Supported
Live Migration: Supported
Memory Preserving Updates: Supported
VM Generation Support: Generation 1 and 2
Accelerated Networking: Supported
Ephemeral OS Disks: Supported
Nested Virtualization: Not Supported
| 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_D2a_v41 | 2 | 8 | 50 | 4 | 3000 / 46 / 23 | 2 | 2000 |
| Standard_D4a_v4 | 4 | 16 | 100 | 8 | 6000 / 93 / 46 | 2 | 4000 |
| Standard_D8a_v4 | 8 | 32 | 200 | 16 | 12000 / 187 / 93 | 4 | 8000 |
| Standard_D16a_v4 | 16 | 64 | 400 | 32 | 24000 / 375 / 187 | 8 | 10000 |
| Standard_D32a_v4 | 32 | 128 | 800 | 32 | 48000 / 750 / 375 | 8 | 16000 |
| Standard_D48a_v4 | 48 | 192 | 1200 | 32 | 96000 / 1000 / 500 | 8 | 24000 |
| Standard_D64a_v4 | 64 | 256 | 1600 | 32 | 96000 / 1000 / 500 | 8 | 32000 |
| Standard_D96a_v4 | 96 | 384 | 2400 | 32 | 96000 / 1000 / 500 | 8 | 40000 |
1 Accelerated networking can only be applied to a single NIC.
Dasv4-series
The Dasv4-series run on 2nd Generation AMD EPYCTM 7452 (up to 3.35GHz) or 3rd Generation EPYCTM 7763v processors (up to 3.5GHz) and use premium SSD. The Dasv4-series sizes offer a combination of vCPU, memory and temporary storage for most production workloads.
ACU: 230-260
Premium Storage: Supported
Premium Storage caching: Supported
Live Migration: Supported
Memory Preserving Updates: Supported
VM Generation Support: Generation 1 and 2
Accelerated Networking: Supported
Ephemeral OS Disks: Supported
Nested Virtualization: Not supported
| Size | vCPU | Memory: GiB | Temp storage (SSD) GiB | Max data disks | Max cached and temp storage throughput: IOPS / MBps (cache size in GiB) | Max burst cached and temp storage throughput: IOPS / MBps1 | Max uncached disk throughput: IOPS / MBps | Max burst uncached disk throughput: IOPS/MBps1 | Max NICs | Expected network bandwidth (Mbps) |
|---|---|---|---|---|---|---|---|---|---|---|
| Standard_D2as_v42 | 2 | 8 | 16 | 4 | 4000 / 32 (50) | 4000/100 | 3200 / 48 | 4000/200 | 2 | 2000 |
| Standard_D4as_v4 | 4 | 16 | 32 | 8 | 8000 / 64 (100) | 8000/200 | 6400 / 96 | 8000/200 | 2 | 4000 |
| Standard_D8as_v4 | 8 | 32 | 64 | 16 | 16000 / 128 (200) | 16000/400 | 12800 / 192 | 16000/400 | 4 | 8000 |
| Standard_D16as_v4 | 16 | 64 | 128 | 32 | 32000 / 255 (400) | 32000/800 | 25600 / 384 | 32000/800 | 8 | 10000 |
| Standard_D32as_v4 | 32 | 128 | 256 | 32 | 64000 / 510 (800) | 64000/1600 | 51200 / 768 | 64000/1600 | 8 | 16000 |
| Standard_D48as_v4 | 48 | 192 | 384 | 32 | 96000 / 1020 (1200) | 96000/2000 | 76800 / 1148 | 80000/2000 | 8 | 24000 |
| Standard_D64as_v4 | 64 | 256 | 512 | 32 | 128000 / 1020 (1600) | 128000/2000 | 80000 / 1200 | 80000/2000 | 8 | 32000 |
| Standard_D96as_v4 | 96 | 384 | 768 | 32 | 192000 / 1020 (2400) | 192000/2000 | 80000 / 1200 | 80000/2000 | 8 | 40000 |
1 Dasv4-series VMs can burst their disk performance and get up to their bursting max for up to 30 minutes at a time.
2 Accelerated networking can only be applied to a single NIC.
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.
To learn how to get the best storage performance for your VMs, see Virtual machine and disk performance.
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
- General purpose
- Memory optimized
- Storage optimized
- GPU optimized
- High performance compute
- Previous generations
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.