Do A series desktop graphics cards REQUIRE resizable bar?

[MWind2]

I was planning to get an A750 when available for a HP Z840, but I have yet to determine if it supports resizable BAR. Would it work without such?

[MWind2]

Link that seems to state it does require for now:

Intel® Arc™ A-Series Graphics – Desktop Quick Start...

[MWind2]

Does Intel plan to not require resizable BAR in the future?

[Robert_Q_Intel]

Hello MWind2,

Thank you for posting on the Intel Arc communities.

Thank you for showing interest in the Intel Arc graphics cards.

To answer your question Resizable BAR (or Smart Access Memory) must be enabled for optimal performance when using Intel® Arc™ A-Series Graphics. Though, Intel® Arc™ Graphics can still work on a system without Resizable BAR enabled.

This means that the Intel® Arc™ Graphics will still work on a system without a resizable BAR.

The resizable bar is a motherboard feature that can be enabled under BIOS settings, so in order to confirm this information you will need to contact your motherboard manufacturer.

To get more information about the Resizable bar please refer to the following article: 

Resizable BAR on Intel® Arc™ Graphics:

https://game.intel.com/story/intel-arc-graphics-resizable-bar/

Best regards,  

Robert Q. 

Intel Customer Support Technician

[CLEARRTC]

It will work, but performance will be significantly impacted.  Current motherboards are coming with ReBar enabled by default now, it may not "be required" but I think by the next major release of Nvidia/AMD there will also be significant gains to it being on, or conversely losses when off.

What generation CPU is your workstation?

[Robert_Q_Intel]

Hello MWind2,

Were you able to check the previous post?

Let us know if you still need assistance.

Best Regards,

Robert Q

Intel Customer Support Technician

[Robert_Q_Intel]

Hello MWind2,

We have not heard back from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored.

Best regards,  

Robert Q. 

Intel Customer Support Technician

[BruceTennyson]

An integrated security feature known as Intel Software Guard Extensions (SGX) helps safeguard active data using innovative application isolation technology. Using hardened enclaves, certain codes and data are shielded from alteration.

Some programmers truly need Intel SGX to function properly, and if it is not found or enabled, a user error will be displayed. Visualization: The short answer to the question of whether you should disable Intel SGX is no.

[Robert_Q_Intel]

Hello BruceTennyson,

Thanks for sharing this important information,

More information regarding this can be found on the following website:

What Is Intel® SGX?

https://www.intel.com/content/www/us/en/architecture-and-technology/software-guard-extensions.html

Thank you for the information regarding this topic, in case you have any further doubts about Intel® SGX or the Resizable bar please let us know.

Best regards,  

Robert Q. 

Intel Customer Support Technician

[Robert_Q_Intel]

Hello MWind2,

Were you able to check the previous post?  

Let us know if you still need assistance.

Best regards,  

Robert Q. 

Intel Customer Support Technician

[Robert_Q_Intel]

Hello MWind2,

We have not heard back from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored.

Best regards,  

Robert Q. 

Intel Customer Support Technician