HBv5-series VMs are optimized for the most memory bandwidth-intensive HPC applications, including:
- Computational fluid dynamics
- Automotive and aerospace simulations
- Weather modeling
- Energy research
- Molecular dynamics simulations
- Computer-aided engineering and other HPC workloads
HBv5 VMs feature 6.7 TB/s of memory bandwidth across 450 GB (438 GiB) of high-bandwidth memory (HBM) and up to 368 4th Generation AMD EPYC™ processor cores with 4 GHz boost frequencies, 3.5 GHz base frequencies, and no simultaneous multithreading.
Each HBv5-series VM also includes 14.3 TiB of local NVMe SSD storage with up to 50 GB/s (reads) and 30 GB/s (writes) of block device performance.
All HBv5-series VMs feature 800 Gb/s per node (4 x 200 Gb/s CX-7 NIC) of InfiniBand connectivity from NVIDIA Networking to enable supercomputer-scale MPI workloads. These VMs are connected in a nonblocking fat tree for optimized and consistent RDMA performance.
The InfiniBand NICs support features like Adaptive Routing, Dynamically Connected Transport (DCT), hardware acceleration of MPI collectives, and congestion control. These features enhance application performance, scalability, and consistency, and their usage is recommended for optimal performance and cost efficiency.
Host specifications
| Part |
Quantity
Count Units |
Specs
SKU ID, Performance Units, etc. |
| Processor |
48 - 368 vCPUs |
4th Generation AMD EPYC [x86-64] |
| L3 Cache |
1.5 GB |
|
| Memory |
450 GB |
6.7 TB/s |
| Local Storage |
1 Temp Disk
8 NVMe Disks |
480 GiB
14.304 TiB (1.9 TB/Disk) |
| Remote Storage |
32 Disks |
|
| Network |
8 vNICs
4 InfiniBand NICs |
180 Gb/s
800 Gb/s (4 x 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: Not Supported
Accelerated Networking: Supported
Ephemeral OS Disk: Supported
Nested Virtualization: Not Supported
Backend Network: InfiniBand NDR
Sizes in series
vCPUs (Qty.) and Memory for each size
| Size Name |
vCPUs (Qty.) |
Memory (GB) |
L3 Cache (GB) |
Memory Bandwidth (TB/s) |
Base CPU Frequency (GHz) |
Single-core Frequency Peak (GHz) |
All-core Frequency Peak (GHz) |
| Standard_HB368rs_v5 |
368 |
450 |
1.5 |
6.7 |
3.5 |
4 |
4 |
| Standard_HB368_336rsv5 |
336 |
450 |
1.5 |
6.7 |
3.5 |
4 |
4 |
| Standard_HB368_288rsv5 |
288 |
450 |
1.5 |
6.7 |
3.5 |
4 |
4 |
| Standard_HB368-240rs_v5 |
240 |
450 |
1.5 |
6.7 |
3.5 |
4 |
4 |
| Standard_HB368-192rs_v5 |
192 |
450 |
1.5 |
6.7 |
3.5 |
4 |
4 |
| Standard_HB368-144rs_v5 |
144 |
450 |
1.5 |
6.7 |
3.5 |
4 |
4 |
| Standard_HB368-96rs_v5 |
96 |
450 |
1.5 |
6.7 |
3.5 |
4 |
4 |
| Standard_HB368-48rs_v5 |
48 |
450 |
1.5 |
6.7 |
3.5 |
4 |
4 |
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 (GiB) |
| Standard_HB368rs_v5 |
1 |
480 |
8 |
14304 |
| Standard_HB368_336rsv5 |
1 |
480 |
8 |
14304 |
| Standard_HB368_288rsv5 |
1 |
480 |
8 |
14304 |
| Standard_HB368-240rs_v5 |
1 |
480 |
8 |
14304 |
| Standard_HB368-192rs_v5 |
1 |
480 |
8 |
14304 |
| Standard_HB368-144rs_v5 |
1 |
480 |
8 |
14304 |
| Standard_HB368-96rs_v5 |
1 |
480 |
8 |
14304 |
| Standard_HB368-48rs_v5 |
1 |
480 |
8 |
14304 |
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_HB368rs_v5 |
32 |
| Standard_HB368_336rsv5 |
32 |
| Standard_HB368_288rsv5 |
32 |
| Standard_HB368-240rs_v5 |
32 |
| Standard_HB368-192rs_v5 |
32 |
| Standard_HB368-144rs_v5 |
32 |
| Standard_HB368-96rs_v5 |
32 |
| Standard_HB368-48rs_v5 |
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.) |
Max Network Bandwidth (Mb/s) |
| Standard_HB368rs_v5 |
8 |
180000 |
| Standard_HB368_336rsv5 |
8 |
180000 |
| Standard_HB368_288rsv5 |
8 |
180000 |
| Standard_HB368-240rs_v5 |
8 |
180000 |
| Standard_HB368-192rs_v5 |
8 |
180000 |
| Standard_HB368-144rs_v5 |
8 |
180000 |
| Standard_HB368-96rs_v5 |
8 |
180000 |
| Standard_HB368-48rs_v5 |
8 |
180000 |
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).
Network interface info for each size
| Size Name |
Backend NICs (Qty.) |
RDMA Performance (Gb/s) |
| Standard_HB368rs_v5 |
4 |
800 |
| Standard_HB368_336rsv5 |
4 |
800 |
| Standard_HB368_288rsv5 |
4 |
800 |
| Standard_HB368-240rs_v5 |
4 |
800 |
| Standard_HB368-192rs_v5 |
4 |
800 |
| Standard_HB368-144rs_v5 |
4 |
800 |
| Standard_HB368-96rs_v5 |
4 |
800 |
| Standard_HB368-48rs_v5 |
4 |
800 |
Backend Networking resources
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.