Information re AVX2 instruction set

I had posted about this before.

https://discussions.apple.com/thread/251144141

It has to do with Corel Painter 2020.

Some features don't work without

the AVX2 instruction set.

In the prior post I received replies that

it is unclear which Mac processors have

this instruction set.

That is now partially answered for me

in that I bought a new Macbook Pro 16"

with i7 processor and Corel Painter does

find AVX2 on it.

So I hope this will be useful for someone

with a similar question in the future.

MacBook Pro with Touch Bar

Posted on Jun 27, 2020 11:07 PM

Similar questions

AVX2 instruction set support - iMac PRO 2017 - intel Xeon W-2140B An interesting problem regarding AVX2 support on the 2017 iMac PRO with the 8core Xeon W-2140B. I run a science image processing application natively in OS Monterey that has received a major update and now requires AVX2 support to implement revised Ai modules. Running the command in Terminal "sysctl -a | grep cpu.feat" returns the supported instruction set list that only contains support for AVX1.0, AVX2 is not listed. According to public Intel documents the 8 core Xeon W with the Skylake W core does support AVX2 but the specifications for the apple specific version of this CPU are propriety and apparently a secret. Now the interesting issue arises if I run a Windows 10 virtual machine on the iMac PRO and in the Windows environment run the Microsoft equivalent of "sysctl - | grep cpu.feat" to query CPU instruction set support. If I run Microsoft Sysinternals Coreinfo64 inside the Windows 10 virtual machine it reports that AVX2 is present and supported. Comparing the two supported CPU instruction set lists, from Terminal in the native iMacPRO, and from the Windows VM running on the iMacPRO the two lists are virtually identical except for the issue around AVX2. According to Terminal AVX2 is not supported, according to the Windows VM AVX2 is supported. Does anybody know why this disparity exists and more importantly does the intel Xeon W-2140B CPU fitted to the 2017 iMac Pro support AVX2 or not. If I decide to upgrade the current Mac OS native science application to the newest version that requires AVX2 support I would need to buy a non-refundable upgrade license, at a high cost, alternatively I could buy a multi-OS upgrade license at an even higher cost and run the application in the Windows VM which reports AVX2 is supported. Either way I am looking at an outlay of several thousand US$ with no guarantee that the new version will run either natively or inside a Windows VM. Can anybody confirm definitely whether or not AVX2 is supported on the Intel Xeon W-2140B fitted to the 2017 iMac PRO and if so why does "sysctl -a | grep cpu.feat" in Terminal not return AVX2 as a supported instruction set. Many thanks for reading. William.
6398 1
Is additional AV software needed for iMAC? Do I need additional AV software on my iMac, like Trend Micro?
298 1
does my Mac mini m1 have an intel chip? not sure if the Mac min m1 is a intel chip?
953 1

There are no replies.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Information re AVX2 instruction set

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple Account.

Learn more Sign up