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Copy file name to clipboardExpand all lines: articles/virtual-machines/sizes-memory.md
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**Applies to:**:heavy_check_mark: Linux VMs :heavy_check_mark: Windows VMs :heavy_check_mark: Flexible scale sets :heavy_check_mark: Uniform scale sets
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Memory optimized VM sizes offer a high memory-to-CPU ratio that is great for relational database servers, medium to large caches, and in-memory analytics. This article provides information about the number of vCPUs, data disks and NICs. You can also learn about storage throughput and network bandwidth for each size in this grouping.
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Memory optimized VM sizes offer a high memory-to-CPU ratio that is great for relational database servers, medium to large caches, and in-memory analytics. This article provides information about the number of vCPUs, data disks, and NICs. You can also learn about storage throughput and network bandwidth for each size in this grouping.
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> [!TIP]
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> Try the **[Virtual machines selector tool](https://aka.ms/vm-selector)** to find other sizes that best fit your workload.
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- The [Ebsv5 and Ebdsv5 series](ebdsv5-ebsv5-series.md) deliver higher remote storage performance in each VM size than the Ev4 series. The increased remote storage performance of the Ebsv5 and Ebdsv5 VMs is ideal for storage throughput-intensive workloads, such as relational databases and data analytics applications.
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-The [Ev3 and Esv3-series](ev3-esv3-series.md) feature the Intel® Xeon® 8171M 2.1 GHz (Skylake) or the Intel® Xeon® E5-2673 v4 2.3 GHz (Broadwell) processor in a hyper-threaded configuration. This configuration provides a better value proposition for most general purpose workloads, and brings the Ev3 into alignment with the general purpose VMs of most other clouds. Memory has been expanded (from 7 GiB/vCPU to 8 GiB/vCPU) while disk and network limits have been adjusted on a per core basis to align with the move to hyper-threading. The Ev3 is the follow up to the high memory VM sizes of the D/Dv2 families.
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-EC-series VMs help to further protect confidentiality and integrity while using the public cloud. There are various offerings depending on your threat model and ease of onboarding requirements. [ECasv5](ecasv5-ecadsv5-series.md) features AMD SEV-SNP, and [ECesv5](ecesv5-ecedsv5-series.md) features Intel TDX, which enable you to create confidential VMs with no code modifications.
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- The [Ev4 and Esv4-series](ev4-esv4-series.md)runs on 2nd Generation Intel® Xeon®Platinum 8272CL (Cascade Lake) processors in a hyper-threaded configuration, are ideal for various memory-intensive enterprise applications and feature up to 504 GiB of RAM. It features the [Intel® Turbo Boost Technology 2.0](https://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-technology.html), [Intel® Hyper-Threading Technology](https://www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html) and [Intel® Advanced Vector Extensions 512 (Intel AVX-512)](https://www.intel.com/content/www/us/en/architecture-and-technology/avx-512-overview.html). The Ev4 and Esv4-series don't include a local temp disk. For more information, see [Azure VM sizes with no local temp disk](azure-vms-no-temp-disk.yml).
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- The [Ev3 and Esv3-series](ev3-esv3-series.md)feature the Intel® Xeon® 8171M 2.1 GHz (Skylake) or the Intel® Xeon®E5-2673 v4 2.3 GHz (Broadwell) processor in a hyper-threaded configuration. This configuration provides a better value proposition for most general purpose workloads, and brings the Ev3 into alignment with the general purpose VMs of most other clouds. Memory expanded (from 7 GiB/vCPU to 8 GiB/vCPU) while disk and network limits were adjusted on a per core basis to align with the move to hyper-threading. The Ev3 is the follow up to the high memory VM sizes of the D/Dv2 families.
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- The [Edv4 and Edsv4-series](edv4-edsv4-series.md) runs on 2nd Generation Intel® Xeon® Platinum 8272CL (Cascade Lake) processors, ideal for extremely large databases or other applications that benefit from high vCPU counts and large amounts of memory. Additionally, these VM sizes include fast, larger local SSD storage for applications that benefit from low latency, high-speed local storage. It features an all core Turbo clock speed of 3.4 GHz, [Intel® Turbo Boost Technology 2.0](https://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-technology.html), [Intel® Hyper-Threading Technology](https://www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html) and [Intel® Advanced Vector Extensions 512 (Intel AVX-512)](https://www.intel.com/content/www/us/en/architecture-and-technology/avx-512-overview.html).
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- The [Ev4 and Esv4-series](ev4-esv4-series.md) runs on 2nd Generation Intel® Xeon® Platinum 8272CL (Cascade Lake) processors in a hyper-threaded configuration, are ideal for various memory-intensive enterprise applications and feature up to 504 GiB of RAM. It features the [Intel® Turbo Boost Technology 2.0](https://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-technology.html), [Intel® Hyper-Threading Technology](https://www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html), and [Intel® Advanced Vector Extensions 512 (Intel AVX-512)](https://www.intel.com/content/www/us/en/architecture-and-technology/avx-512-overview.html). The Ev4 and Esv4-series don't include a local temp disk. For more information, see [Azure VM sizes with no local temp disk](azure-vms-no-temp-disk.yml).
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- The [Edv4 and Edsv4-series](edv4-edsv4-series.md) runs on 2nd Generation Intel® Xeon® Platinum 8272CL (Cascade Lake) processors, ideal for large databases or other applications that benefit from high vCPU counts and large amounts of memory. Additionally, these VM sizes include fast, larger local SSD storage for applications that benefit from low latency, high-speed local storage. It features an all core Turbo clock speed of 3.4 GHz, [Intel® Turbo Boost Technology 2.0](https://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-technology.html), [Intel® Hyper-Threading Technology](https://www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html) and [Intel® Advanced Vector Extensions 512 (Intel AVX-512)](https://www.intel.com/content/www/us/en/architecture-and-technology/avx-512-overview.html).
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- The [Easv5 and Eadsv5-series](easv5-eadsv5-series.md) utilize AMD's 3rd Generation EPYC<sup>TM</sup> 7763v processor in a multi-threaded configuration with up to 256 MB L3 cache, increasing customer options for running most memory optimized workloads. These virtual machines offer a combination of vCPUs and memory to meet the requirements associated with most memory-intensive enterprise applications, such as relational database servers and in-memory analytics workloads.
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- The [Edv5 and Edsv5-series](edv5-edsv5-series.md) run on the 3rd Generation Intel® Xeon® Platinum 8370C (Ice Lake) processors in a hyper-threaded configuration. These series are ideal for various memory-intensive enterprise applications. They feature up to 672 GiB of RAM, [Intel® Turbo Boost Technology 2.0](https://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-technology.html), [Intel® Hyper-Threading Technology](https://www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html) and [Intel® Advanced Vector Extensions 512 (Intel® AVX-512)](https://www.intel.com/content/www/us/en/architecture-and-technology/avx-512-overview.html). The series also support [Intel® Deep Learning Boost](https://software.intel.com/content/www/us/en/develop/topics/ai/deep-learning-boost.html). These new VM sizes have 50% larger local storage, and better local disk IOPS for both read and write compared to the [Ev3/Esv3](./ev3-esv3-series.md) sizes with [Gen2 VMs](./generation-2.md). It features an all core Turbo clock speed of 3.4 GHz.
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- The [Edv5 and Edsv5-series](edv5-edsv5-series.md) run on the 3rd Generation Intel® Xeon® Platinum 8370C (Ice Lake) processors in a hyper-threaded configuration. This series are ideal for various memory-intensive enterprise applications. They feature up to 672 GiB of RAM, [Intel® Turbo Boost Technology 2.0](https://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-technology.html), [Intel® Hyper-Threading Technology](https://www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html) and [Intel® Advanced Vector Extensions 512 (Intel® AVX-512)](https://www.intel.com/content/www/us/en/architecture-and-technology/avx-512-overview.html). The series also support [Intel® Deep Learning Boost](https://software.intel.com/content/www/us/en/develop/topics/ai/deep-learning-boost.html). These new VM sizes have 50% larger local storage, and better local disk IOPS for both read and write compared to the [Ev3/Esv3](./ev3-esv3-series.md) sizes with [Gen2 VMs](./generation-2.md). It features an all core Turbo clock speed of 3.4 GHz.
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- The [Epsv5 and Epdsv5-series](epsv5-epdsv5-series.md) are ARM64-based VMs featuring the 80 core, 3.0 GHz Ampere Altra processor. These series are designed for common enterprise workloads. They're optimized for database, in-memory caching, analytics, gaming, web, and application servers running on Linux.
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- The [Ev5 and Esv5-series](ev5-esv5-series.md) runs on the Intel® Xeon® Platinum 8272CL (Ice Lake) processors in a hyper-threaded configuration, are ideal for various memory-intensive enterprise applications and feature up to 512 GiB of RAM. It features an all core Turbo clock speed of 3.4 GHz.
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- The [M-series](m-series.md) offers a high vCPU count (up to 128 vCPUs) and a large amount of memory (up to 3.8 TiB). It's also ideal for extremely large databases or other applications that benefit from high vCPU counts and large amounts of memory.
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- The [M-series](m-series.md) offers a high vCPU count (up to 128 vCPUs) and a large amount of memory (up to 3.8 TiB). It's also ideal for very large databases or other applications that benefit from high vCPU counts and large amounts of memory.
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- The [Mv2-series](mv2-series.md) offers the highest vCPU count (up to 416 vCPUs) and largest memory (up to 11.4 TiB) of any VM in the cloud. It's ideal for extremely large databases or other applications that benefit from high vCPU counts and large amounts of memory.
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- The [Mv2-series](mv2-series.md) offers the highest vCPU count (up to 416 vCPUs) and largest memory (up to 11.4 TiB) of any VM in the cloud. It's ideal for very large databases or other applications that benefit from high vCPU counts and large amounts of memory.
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Azure Compute offers virtual machine sizes that are Isolated to a specific hardware type and dedicated to a single customer. These virtual machine sizes are best suited for workloads that require a high degree of isolation from other customers for workloads involving elements like compliance and regulatory requirements. Customers can also choose to further subdivide the resources of these Isolated virtual machines by using [Azure support for nested virtual machines](https://azure.microsoft.com/blog/nested-virtualization-in-azure/). See the pages for virtual machine families below for your isolated VM options.
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Azure Compute offers virtual machine sizes that are [Isolated](isolation.md) to a specific hardware type and dedicated to a single customer. These virtual machine sizes are best suited for workloads that require a high degree of isolation from other customers for workloads involving elements like compliance and regulatory requirements. Customers can also choose to further subdivide the resources of these Isolated virtual machines by using [Azure support for nested virtual machines](https://azure.microsoft.com/blog/nested-virtualization-in-azure/).
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