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RashabhKumar-3797 asked AndreasBaumgarten commented

What is the difference between D4ads_v5 and D4ds_v5 VM

I need a virtual machine with at least 4 cores and 4 gig of RAM with AVX2 support, while looking for the size, I found D4ads_V5 and D4ds_V5 but could not find the difference between the two except their price. Can anyone help me with this?

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Hi @RashabhKumar-3797 ,

Are there any additional questions to this topic?

If you found the answer helpful, it would be great if you please mark it "Accept as answer". This will help others to find answers in Q&A

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Regards
Andreas Baumgarten

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AndreasBaumgarten answered

Hi @RashabhKumar-3797 ,

the difference between D4ads_v5 and D4ds_v5 VM are the CPU of the host running the VMS:

Standard_D4ads_v5 using AMD's 3rd Generation EPYCTM 7763v processors on the host system.
https://docs.microsoft.com/en-us/azure/virtual-machines/dasv5-dadsv5-series#dadsv5-series

D4ds_v5 using Intel® Xeon® Platinum 8370C (Ice Lake) processor
https://docs.microsoft.com/en-us/azure/virtual-machines/ddv5-ddsv5-series#ddsv5-series


(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards
Andreas Baumgarten

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Prrudram-MSFT answered Prrudram-MSFT edited

Hello @RashabhKumar-3797,

Thank you for reaching out to the Microsoft Q&A platform. Happy to answer your question.

The major difference between D4ads_v5 and D4ds_v5 VM SKUs is the additive feature 'a' stands for AMD-based processor which D4ads_v5 has and D4ds_v5 doesn't.
To understand the naming convention, please look at vm-naming-conventions

Additive Features One or more lower case letters denote additive features, such as:
a = AMD-based processor
d = diskful (i.e., a local temp disk is present); this is for newer Azure VMs, see Ddv4 and Ddsv4-series
i = isolated size
l = low memory; a lower amount of memory than the memory intensive size
m = memory intensive; the most amount of memory in a particular size
t = tiny memory; the smallest amount of memory in a particular size
s = Premium Storage capable, including possible use of Ultra SSD (Note: some newer sizes without the attribute of s can still support Premium Storage e.g. M128, M64, etc.)
Other than that, another slight veriation is in Max uncached disk throughput: IOPS/MBps and Max burst uncached disk throughput: IOPS/MBps
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Specific Question:
I need a virtual machine with at least 4 cores and 4 gig of RAM with AVX2 support.
We don't have a SKU that matches this exact requirement, the suggestion is to use a SKU that is closer to the required configuration in terms of compute resources.

Please "Accept as Answer" and Upvote if the answer provided is useful, so that you can help others in the community looking for remediation for similar issues



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