HBv3-series VMs are optimized for HPC applications such as fluid dynamics, explicit and implicit finite element analysis, weather modeling, seismic processing, reservoir simulation, and RTL simulation. HBv3 VMs feature up to 120 AMD EPYC™ 7V73X (Milan-X) CPU cores, 448 GB of RAM, and no simultaneous multithreading. HBv3-series VMs also provide 350 GB/sec of memory bandwidth (amplified up to 630 GB/s), up to 96 MB of L3 cache per core (1536 MB total per VM), up to 7 GB/s of block device SSD performance, and clock frequencies up to 3.5 GHz. All HBv3-series VMs feature 200 Gb/sec HDR InfiniBand from NVIDIA Networking to enable supercomputer-scale MPI workloads. These VMs are connected in a non-blocking fat tree for optimized and consistent RDMA performance. The HDR InfiniBand fabric also supports Adaptive Routing and the Dynamic Connected Transport (DCT, in additional to standard RC and UD transports). These features enhance application performance, scalability, and consistency, and their usage is strongly recommended.
Host specifications
| Part |
Quantity
Count Units |
Specs
SKU ID, Performance Units, etc. |
| Processor |
16 - 120 vCPUs |
AMD EPYC 7V73X (Milan-X) [x86-64] |
| L3 Cache |
1536 MB |
|
| Memory |
448 GB |
350 GB/s |
| Local Storage |
1 Temp Disk
2 NVMe Disks |
480 GiB
960 GiB |
| Remote Storage |
32 Disks |
|
| Network |
8 vNICs
1 InfiniBand HDR NIC |
40 Gb/s
200 Gb/s |
| Accelerators |
None |
|
Feature support
Premium Storage: Supported
Premium Storage caching: Supported
Live Migration: Not Supported
Memory Preserving Updates: Not 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) |
Memory Bandwidth (GB/s) |
Base CPU Frequency (GHz) |
Single-core Frequency Peak (GHz) |
All-core Frequency Peak (GHz) |
| Standard_HB120rs_v3 |
120 |
448 |
350 |
1.9 |
3.5 |
3 |
| Standard_HB120-96rs_v3 |
96 |
448 |
350 |
1.9 |
3.5 |
3 |
| Standard_HB120-64rs_v3 |
64 |
448 |
350 |
1.9 |
3.5 |
3 |
| Standard_HB120-32rs_v3 |
32 |
448 |
350 |
1.9 |
3.5 |
3 |
| Standard_HB120-16rs_v3 |
16 |
448 |
350 |
1.9 |
3.5 |
3 |
VM Basics resources
Local (temp) storage info for each size
| Size Name |
Max Temp Storage Disks (Qty.) |
Temp Disk Size (GiB) |
Local Solid State Disks (Qty.) |
Local Solid State Disk Size (GB) |
| Standard_HB120rs_v3 |
1 |
480 |
2 |
960 |
| Standard_HB120-96rs_v3 |
1 |
480 |
2 |
960 |
| Standard_HB120-64rs_v3 |
1 |
480 |
2 |
960 |
| Standard_HB120-32rs_v3 |
1 |
480 |
2 |
960 |
| Standard_HB120-16rs_v3 |
1 |
480 |
2 |
960 |
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.) |
| Standard_HB120rs_v3 |
32 |
| Standard_HB120-96rs_v3 |
32 |
| Standard_HB120-64rs_v3 |
32 |
| Standard_HB120-32rs_v3 |
32 |
| Standard_HB120-16rs_v3 |
32 |
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.) |
RDMA Performance (GB/s) |
| Standard_HB120rs_v3 |
8 |
200 |
| Standard_HB120-96rs_v3 |
8 |
200 |
| Standard_HB120-64rs_v3 |
8 |
200 |
| Standard_HB120-32rs_v3 |
8 |
200 |
| Standard_HB120-16rs_v3 |
8 |
200 |
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
Read about the latest announcements, HPC workload examples, and performance results at the Azure Compute Tech Community Blogs.