64-bit version of x86 architecture
Factsheet
Named after x86
64-bit computing
64-bit computing
Named after x86
64-bit computing
64-bit computing
Wikipedia
en.wikipedia.org › wiki › X86-64
x86-64 - Wikipedia
14 hours ago - In 2020, through a collaboration between AMD, Intel, Red Hat, and SUSE, three microarchitecture levels (or feature levels) on top of the x86-64 baseline were defined: x86-64-v2, x86-64-v3, and x86-64-v4. These levels define specific features that can be targeted by programmers to provide ...
Hackaday
hackaday.com › 2024 › 02 › 25 › what-is-x86-64-v3
What Is X86-64-v3? | Hackaday
February 25, 2024 - So, outside of Atom processors, you must have some old hardware to not have the v3 instructions. Some of these instructions are pretty pervasive, so switching at run time doesn’t seem very feasible. We wonder if older processors would trip illegal instruction interrupts for these instructions. If so, you could add emulated versions the same way old CPUs used to emulate math coprocessors if they didn’t have one. Keep in mind that the debate about dropping versions before x86-64-v3 doesn’t mean Linux itself will care.
Will future releases require x86_64-v3? - Fedora Discussion
RHEL 10 is planned to require v3 as implied in their blog. Three of my computers have microprocessors that are only v2 compliant but not v3, will future Fedora releases stop working? More on discussion.fedoraproject.org
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September 13, 2024Changing the default x86-64 compilation target to v2 or v3 - compiler - Rust Internals
This should have fewer of the issues that are mentioned about distribution because it's just the default and users can choose to override to an older version if needed. I think x86-64-v3 makes a good target as that's targeting CPUs introduced over 10 years ago and that's similar to changes ... More on internals.rust-lang.org
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November 21, 2024Lack of x86_64-v3 support in rosetta
Rosetta in linux guests currently (macOS 15) does not support the x86_64-v3 instruction set. More on github.com
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x86-64-v3 vs direct cpu arch name.
x86-64-v3 is mostly useful if you package for a repository for you own single computer just using -march=native should be enough which should detect your architecture automatically More on reddit.com
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January 20, 2023Videos
Reddit
reddit.com › r/archlinux › x86_64 v3 or v4 support
r/archlinux on Reddit: x86_64 v3 or v4 support
July 10, 2024 -
I am running machine learning workloads on a Threadripper 7000-series CPU. Sometimes I'm CPU-bound, other times GPU-bound, depending on whether I'm doing data generation or model training.
My current distro is built for x86_64 with essentially no extensions, so leaving about 20 years of processor development on the table. I think I could use an extra 10% or whatever of performance when the jobs sometimes run for weeks.
So I'm open to adopting a distro that targets a more recent CPU microarchitecture. I read that Arch merged x86_64 v3 support a little while back, thus my interest.
What is the state of recent microarchitectures on Arch? How would I install an Arch system that was v3 based? Is v4 available yet?
Top answer 1 of 5
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My current distro is built for x86_64 with essentially no extensions, so leaving about 20 years of processor development on the table. v3 packages will not help you. Every mathematical library and every machine learning application you've ever known already use the most advanced instruction sets available. They do so even when compiled for less capable architectures by detecting support at runtime, and they have done so since the beginning. The only performance to be gained from v3 packages is the optimizations the compiler is able to find through autovectorization in the other parts of the compiled code. You're not leaving "20 years of processor development on the table." It is expected that there is on average something to be gained from v3 packages, but nothing near what you are imagining, and certainly not for your workload.
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Just add cachy repos. Be prepared for it making fuck all difference tho - bit disappointing. https://wiki.cachyos.org/cachyos_repositories/how_to_add_cachyos_repo/ Adding stuff like AVX512 to the os is useless. It only matters if used in the critical loop of your own simulation code. So it's YOU that would have to recompile your own code, with a different compiler maybe.
Red Hat
developers.redhat.com › articles › 2024 › 01 › 02 › exploring-x86-64-v3-red-hat-enterprise-linux-10
Exploring x86-64-v3 for Red Hat Enterprise Linux 10 | Red Hat Developer
April 4, 2024 - Red Hat is considering building Red Hat Enterprise Linux 10 for the x86-64-v3 microarchitecture level.
Fedora Discussion
discussion.fedoraproject.org › project discussion
Will future releases require x86_64-v3? - Fedora Discussion
September 13, 2024 - RHEL 10 is planned to require v3 as implied in their blog. Three of my computers have microprocessors that are only v2 compliant but not v3, will future Fedora releases stop working?
Rust Internals
internals.rust-lang.org › compiler
Changing the default x86-64 compilation target to v2 or v3 - compiler - Rust Internals
November 21, 2024 - This should have fewer of the issues that are mentioned about distribution because it's just the default and users can choose to override to an older version if needed. I think x86-64-v3 makes a good target as that's targeting CPUs introduced over 10 years ago and that's similar to changes ...
openSUSE
en.opensuse.org › X86-64_microarchitecture_levels
X86-64 microarchitecture levels - openSUSE Wiki
July 4, 2025 - In 2020, through a collaboration between AMD, Intel, Red Hat, and SUSE, three microarchitecture levels (or feature levels) on top of the x86-64 baseline were defined: x86-64-v2, x86-64-v3, and x86-64-v4.
Android Authority
androidauthority.com › home › computing › what is x86-64-v3? understanding the x86-64 microarchitecture levels
What is x86-64-v3? Understanding the x86-64 microarchitecture levels
February 20, 2024 - For instance, Windows 11 is exclusively 64-bit, Ubuntu ceased supporting 32-bit PCs in 2018, and macOS transitioned to fully 64-bit in 2011. x86-64v3 essentially adds AVX2, MOVBE, FMA, and some additional bit manipulation instructions.
Arch Linux Forums
bbs.archlinux.org › viewtopic.php
What is the x86-64 microarchitecture level? / Arch Discussion / Arch Linux Forums
The current "baseline" is without any level -- so whatever x86-64 originally specified 20 years ago. The purpose of this RFC (or rather, the implementation that is planned to happen) is to provide v3 for capable HW (mostly the stuff that supports AVX2 instructions) so raises the "CPU bar" to ~2016 for optimized binaries, as well as the normal x86-64 packages that are already provided.
Ubuntu
ubuntu.com › blog › profile-workloads-on-x86-64-v3-to-enable-future-performance-gains
Profile workloads on x86-64-v3 to enable future performance gains | Ubuntu
March 27, 2024 - Ubuntu 23.10 experimental image with x86-64-v3 instruction set now available on Azure Canonical is enabling enterprises to evaluate the performance of their most critical workloads in an experimental Ubuntu image on Azure compiled with x86-64-v3, which is a microarchitecture level that has the potential for performance gains.
Sunnyflunk
sunnyflunk.github.io › 2023 › 01 › 15 › x86-64-v3-Mixed-Bag-of-Performance.html
x86-64-v3: Mixed Bag of Performance | Experiments in Performance
January 15, 2023 - The consensus on the value is often mixed, where we see benchmarks showing wild improvements that it can bring, but very little on the drawbacks that come with it. Once we start shifting to building an entire distribution’s packages with x86_64-v3, then the performance of the every day package ...
VirtualBox
forums.virtualbox.org › board index › general › virtualbox on windows hosts
x86-64-v3 support in NEM hyper-v mode - virtualbox.org
March 5, 2025 - But when I run the same machines on same hw in NEM hyper-v mode (by enabling memory integrity), x86-64-v3 is unsupported: [root@oel8 ~]# /usr/lib64/ld-linux-x86-64.so.2 --help|grep x86-64-v x86-64-v4 x86-64-v3 x86-64-v2 (supported, searched) It seems that with RHEL 10, which is expected to be released in three months, will be x86-64-v2 unsupported: https://access.redhat.com/solutions/7066628 "Red Hat will upgrade the instruction set architecture (ISA) baseline to the x86-64-v3 microarchitecture level in RHEL 10 and x86-64-v1 and x86-64-v2 x86-64 microarchitecture level of CPUs will be marked deprecated in RHEL 8 and RHEL 9 and unsupported in RHEL 10."
Infotechys
infotechys.com › home › everything you need to know about x86_64-v3
Everything You Need to Know About x86_64-v3 - Infotechys.com
March 20, 2025 - To fully grasp what x86_64-v3 brings to the table, it’s essential to first understand the basics of the x86_64 architecture. The x86_64 architecture is the 64-bit extension of the x86 instruction set, developed by Intel and AMD.
GitHub
github.com › crc-org › vfkit › issues › 265
Lack of x86_64-v3 support in rosetta · Issue #265 · crc-org/vfkit
February 26, 2025 - Rosetta in linux guests currently (macOS 15) does not support the x86_64-v3 instruction set.
Published Feb 26, 2025
Reddit
reddit.com › r/archlinux › x86-64-v3 vs direct cpu arch name.
r/archlinux on Reddit: x86-64-v3 vs direct cpu arch name.
January 20, 2023 -
What would the different between declaring -march=x86-64-v3 vs -march=broadwell for instance.
I’ve seen a lot of discussion lately about x86-64-v3 and am not sure what the difference would be if your building packages for your system, wouldn’t declaring your architecture be better than a catch-most?
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x86-64-v3 is mostly useful if you package for a repository for you own single computer just using -march=native should be enough which should detect your architecture automatically
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x86-64-v3 is a superset of x86-64, but still a "least common denominator" instruction set for slightly newer processors. If you don't intend to distribute your binaries, there's no reason to use -march=x86-64-v3. If you really want to know the difference, you can ask gcc: $ comm -13 <(gcc -march=x86-64-v3 -Q --help=target | grep -F '[enabled]' | sort) <(gcc -march=broadwell -Q --help=target | grep -F '[enabled]' | sort) -madx [enabled] -mfsgsbase [enabled] -mhle [enabled] -mpclmul [enabled] -mprfchw [enabled] -mrdrnd [enabled] -mrdseed [enabled] -mxsaveopt [enabled] So gcc would ignore access to those instruction set extensions.
Rocky Linux Forum
forums.rockylinux.org › rocky linux help & support
Old CPU incompatibility - Rocky Linux Help & Support - Rocky Linux Forum
March 17, 2025 - I understand that a “future” release of RHEL/Rocky/etc. will no longer support my now-ancient AMD six-core Vishera CPU. I’m trying to find out which newer CPUs will support the changes causing this incompatibility, but …
Linux.org
linux.org › home › forums › linux.org news, tutorials and articles › linux original content › linux articles › linux tips
How to Check X86_64 Versions in Linux | Linux.org
February 8, 2025 - To be clear, the SSE3, SSE4.1 and SSE4.2 are all part of x86_64v2. There is also x86_64v3 and x86_64v4. Currently, there is no version 5. x86-64-v3 Version 3 of the instruction set includes bit manipulation and AVX2, MOVBE, FMA.
YouTube
youtube.com › watch
What is x86-64-v3? Understanding the x86-64 microarchitecture levels - YouTube
Those who follow the Linux related news will have noticed the term x86-64-v3 being used recently. What is x86-64-v3? What is all the fuss? What is its relat...
Published February 6, 2024
Gentoo Linux
gentoo.org › news › 2024 › 02 › 04 › x86-64-v3.html
Gentoo x86-64-v3 binary packages available – Gentoo Linux
The initial package set for amd64 was and is base-line x86-64, i.e., it should work on any 64bit Intel or AMD machine. Now, we are happy to announce that there is also a separate package set using the extended x86-64-v3 ISA (i.e., microarchitecture level) available for the same software.
Ubuntu Community Hub
discourse.ubuntu.com › project discussion › foundations
Why are you guys considering dropping support for 64 bit hardware that is not v3? - Foundations - Ubuntu Community Hub
December 17, 2023 - Many people switch to Linux - Specifically Ubuntu or an Ubuntu based distro, because their hardware isn’t supported by other operating systems. So if you want to give x86-64 v3 performance improvements, you could take notes from how Tumbleweed did it. Tumbleweed installed an x86-64-3 package ...