AVX Offset in x570 Steel Legend??
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=12159
Printed Date: 30 Jul 2025 at 7:51pm
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Topic: AVX Offset in x570 Steel Legend??
Posted By: Tassadar
Subject: AVX Offset in x570 Steel Legend??
Date Posted: 10 Aug 2019 at 1:48am
Hi all,
I've look all setting in bios but I've found nothing related with AVX offset.
The thing is AVX2 heats system so much that it limit the max vcore and speed I can overclock my 3800x, with non-AVX test I could set for example 1,325v and 4350mhz or even more, but due to AVX I can't set more than 1,270v and 4300 mhz in order to have stable system.
Regards
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Replies:
Posted By: Ray62
Date Posted: 10 Aug 2019 at 4:39pm
I think you cannot find an AVX offset in any bios for Zen2:
Quote from https://www.overclock.net/forum/10-amd-cpus/1728758-strictly-technical-matisse-not-really.html
Unlike Intel designs, Matisse does not feature an offset for 256-bit workloads. This means that to ensure the stability of the CPU cores in every scenario, they must be tested using this kind of a workload.
On Matisse, the delta in power consumption between the scalar and 256-bit vector instructions is massive, as expected (37%). That being said, there seems to be other design related factors limiting the maximum achievable frequency.
Despite significantly lower power consumption and therefore also lower temperatures, stability even in pure scalar workloads could not be achieved at much higher frequencies, compare to FRU scenario.
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Asrock Fatal1ty X370 Professional Gaming Offline
Under test:
MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE
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Posted By: Tassadar
Date Posted: 26 Aug 2019 at 10:04pm
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Many thanks for the answer and sorry me for not replying before.
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