Mbsv3 sizes series

The Memory-and-storage optimized Mbv3 VM series are based on the 4th generation Intel® Xeon® Scalable processors and deliver higher remote disk storage performance. These new VM sizes offer up to 650,000 IOPS and 10 GBps of remote disk storage throughput Premium SSD v2 and Ultra Disk, up to 4 TiB of RAM and up to 650,000 IOPS and 10 GBps throughput to remote disk storage with NVMe interface by using Ultra Disk and Premium SSD v2.

The increased remote storage performance of these VMs is ideal for storage throughput-intensive workloads such as relational databases and data analytics applications.

The resource allocation and high-performance capabilities of the Mbv3 VM series make them particularly well suited for SQL Server workloads with high memory needs, such as critical online transaction processing (OLTP), data analytics, in-memory databases, data warehousing, and the consolidation of SQL Server workloads for efficient management of multiple SQL Server instances.

Host specifications

Part	Quantity ^{Count Units}	Specs ^{SKU ID, Performance Units, etc.}
Processor	16 - 416 vCPUs	Intel Xeon 4th gen Scalable (Sapphire Rapids) [x86-64]
Memory	128 - 3800 GiB
Local Storage	None
Remote Storage	64 Disks	44,000 - 650,000 IOPS 1,000 - 10,000 MBps
Network	8 NICs	8,000 - 50,000 Mbps
Accelerators	None

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

Sizes in series (NVMe)

vCPUs (Qty.) and Memory for each size

Size Name	vCPUs (Qty.)	Memory (GiB)
Standard_M16bs_v3	16	128
Standard_M32bs_v3	32	256
Standard_M48bs_v3	48	384
Standard_M64bs_v3	64	512
Standard_M96bs_v3	96	768
Standard_M128bs_v3	128	1024
Standard_M176bs_v3	176	1536
Standard_M416bs_v3	416	3800

VM Basics resources

Check vCPU quotas

Remote (uncached) storage info for each size

Size Name	Max Remote Storage Disks (Qty.)	Max Uncached Premium SSD IOPS	Max Uncached Premium SSD Throughput (MB/s)	Max Uncached Ultra Disk and Premium SSD v2 IOPS	Max Uncached Ultra Disk and Premium SSD v2 Throughput (MB/s)
Standard_M16bs_v3	64	44,000	1,000	64,000	1,000
Standard_M32bs_v3	64	88,000	2,000	88,000	2,000
Standard_M48bs_v3	64	88,000	2,000	120,000	2,000
Standard_M64bs_v3	64	88,000	2, 000	160,000	2, 000
Standard_M96bs_v3	64	260,000	4,000	260,000	4,000
Standard_M128bs_v3	64	260,000	4,000	400,000	4,000
Standard_M176bs_v3	64	260,000	6,000	650,000	6,000
Standard_M416bs_v3	64	240,000	8,000	550,000	10,000

Storage resources

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.
IOPS/MBps listed here refer to uncached mode for data disks.
To learn how to get the best storage performance for your VMs, see Virtual machine and disk performance.
IOPS spec is defined using common small random block sizes like 4KiB or 8KiB. Maximum IOPS is defined as "up-to" and measured using 4KiB random reads workloads.
TPUT spec is defined using common large sequential block sizes like 128KiB or 1024KiB. Maximum TPUT is defined as "up-to" and measured using 128KiB sequential reads workloads.

Network interface info for each size

Size Name	Max NICs (Qty.)	Max Network Bandwidth (Mb/s)
Standard_M16bs_v3	8	8,000
Standard_M32bs_v3	8	16,000
Standard_M48bs_v3	8	16,000
Standard_M64bs_v3	8	16,000
Standard_M96bs_v3	8	25,000
Standard_M128bs_v3	8	40,000
Standard_M176bs_v3	8	50,000
Standard_M416bs_v3	8	50,000

Networking resources

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.
IOPS/MBps listed here refer to uncached mode for data disks.
To learn how to get the best storage performance for your VMs, see Virtual machine and disk performance.
IOPS spec is defined using common small random block sizes like 4KiB or 8KiB. Maximum IOPS is defined as "up-to" and measured using 4KiB random reads workloads.
TPUT spec is defined using common large sequential block sizes like 128KiB or 1024KiB. Maximum TPUT is defined as "up-to" and measured using 128KiB sequential reads workloads.

Feature support

Feature name	Support status
Premium Storage	Supported
Premium Storage caching	Supported
Live Migration	Restricted Support
Memory Preserving Updates	Not Supported
Generation 2 VMs	Supported
Generation 1 VMs	Not Supported
Accelerated Networking	Supported
Ephemeral OS Disk	Not Supported
Nested Virtualization	Not Supported
Hibernation	Not Supported
Write Accelerator	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.

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Last updated on 2026-03-10