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Intel now deactivates AVX-512 capability on new Alder Lake CPUs
And that would be fused on a hardware level. Whilst AVX-512 was not officially supported on the chips, it was useable on Alder Lake on several motherboards.
According to an unnamed source, AVX-512 has been fully disabled in recent editions of Intel's Alder Lake non-K CPUs. This was later confirmed by Intel. "While AVX-512 was not fuse-disabled on select early Alder Lake desktop devices," a company official informed Tom's Hardware, "Intel expects to do so on Alder Lake products in the future."
Most 600-series motherboards later received an upgrade that eliminated official support for AVX512. Surprisingly, several firms attempted to provide partial support via secret BIOS settings. However, this is expected to change shortly, since the revised Alder Lake silicon will no longer have this area of the device physically activated. If you want AVX-512 capability with Intel's latest designs, you'll have to upgrade to its more costly Xeon CPUs. Meanwhile, AMD is said to be adding AVX-512 support to its Zen 4 processors, which is an unusual twist if Intel continues to refuse to support the instructions on consumer devices.
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user1
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Joined: 2016-01-29
#5998139 Posted on: 03/04/2022 07:55 PM
I don't really understand why they bother, the number of people using it is pretty low in the first place. Its not like they stand to gain anything by fusing it off, if there was any product that they should have fused it off for it would've been rocket lake, because at least with those it hurt power consumption, causing throttling under heavy load. With alder lake that is actually fixed.
I don't really understand why they bother, the number of people using it is pretty low in the first place. Its not like they stand to gain anything by fusing it off, if there was any product that they should have fused it off for it would've been rocket lake, because at least with those it hurt power consumption, causing throttling under heavy load. With alder lake that is actually fixed.
TLD LARS
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Senior Member
Posts: 563
Joined: 2017-03-01
#5998140 Posted on: 03/04/2022 07:57 PM
AVX512 was never ment to work on the chip, it was activated by partners that went against Intels marketing material.
No one promised that AVX512 would work, it was just a nice bonus.
Oh I see so it's ok to disable something you own as long as you are ignorant.
AVX512 was never ment to work on the chip, it was activated by partners that went against Intels marketing material.
No one promised that AVX512 would work, it was just a nice bonus.
user1
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Posts: 2482
Joined: 2016-01-29
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Posts: 2482
Joined: 2016-01-29
#5998142 Posted on: 03/04/2022 08:07 PM
AVX512 was never ment to work on the chip, it was activated by partners that went against Intels marketing material.
No one promised that AVX512 would work, it was just a nice bonus.
It was meant to work, that's why its on the chip, the problem is that some genius at intel decided to not validate the feature , basically cut at the last minute , No real explanation has been given, though it probably has something to do with software compatibility if I had to guess.
AVX512 was never ment to work on the chip, it was activated by partners that went against Intels marketing material.
No one promised that AVX512 would work, it was just a nice bonus.
It was meant to work, that's why its on the chip, the problem is that some genius at intel decided to not validate the feature , basically cut at the last minute , No real explanation has been given, though it probably has something to do with software compatibility if I had to guess.
MegaFalloutFan
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Joined: 2015-06-27
Senior Member
Posts: 1029
Joined: 2015-06-27
#5998146 Posted on: 03/04/2022 08:37 PM
If its true its Great news, our older CPUs that have this will rise in value, its time to buy more of them and then re-sale.
If its true its Great news, our older CPUs that have this will rise in value, its time to buy more of them and then re-sale.
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Some linux folks do.
https://www.phoronix.com/scan.php?page=article&item=rocket-lake-avx512&num=1