Thursday, March 3rd 2022
Intel is Now Fusing Off AVX-512 support in Alder Lake CPUs
If you have already bought a 12th gen Intel Alder Lake CPU, you could be sitting on a collectors item, as according to Tom's Hardware, Intel is now fusing off AVX-512 support in production. It's possible this could be in preparation for the arrival of the Core "W" series of CPUs that might be replacing the Xeon-W series of processors for Intel. It should be noted that this isn't a rumour, as Tom's Hardware has had an official statement on the matter from Intel.
The statement reads, "Although AVX-512 was not fuse-disabled on certain early Alder Lake desktop products, Intel plans to fuse off AVX-512 on Alder Lake products going forward." As to exactly when this will go into full effect isn't clear, but according to Tom's Hardware, they've already had reports of batches of non-K Alder Lake CPUs that are lacking AVX-512 support. In all fairness to Intel, the company never claimed that its Alder Lake CPUs would support AVX-512 and the support has never been guaranteed to be flawless on the chips that have shipped with it enabled. Intel has also disabled AVX-512 via a microcode update that shipped to motherboard makers in January, but at least some motherboard makers have added a toggle to allow people to re-enable AVX-512 support. It's unlikely that this will affect many potential customers, since AVX-512 instructions aren't widely used in consumer facing software.
Source:
Tom's Hardware
The statement reads, "Although AVX-512 was not fuse-disabled on certain early Alder Lake desktop products, Intel plans to fuse off AVX-512 on Alder Lake products going forward." As to exactly when this will go into full effect isn't clear, but according to Tom's Hardware, they've already had reports of batches of non-K Alder Lake CPUs that are lacking AVX-512 support. In all fairness to Intel, the company never claimed that its Alder Lake CPUs would support AVX-512 and the support has never been guaranteed to be flawless on the chips that have shipped with it enabled. Intel has also disabled AVX-512 via a microcode update that shipped to motherboard makers in January, but at least some motherboard makers have added a toggle to allow people to re-enable AVX-512 support. It's unlikely that this will affect many potential customers, since AVX-512 instructions aren't widely used in consumer facing software.
36 Comments on Intel is Now Fusing Off AVX-512 support in Alder Lake CPUs
Perhaps next time don't be so lazy, Intel. You should have known better....
www.nme.com/news/gaming-news/intel-ceo-says-amd-is-in-the-rearview-mirror-for-good-3140388
all it took was an influx of socialist tax payer money in a capitalist free market economy to make it happen... neat lol
www.cnbc.com/2022/03/02/why-intels-ceo-was-a-guest-at-bidens-state-of-the-union-address.html
AVX-512 is great for math.
Fusing off or is it phasing out ?
Thought you and I suppose Tom... used an interesting term "fused off"
Is there an actual fuse that controls 512 ?
Yep the term is whack lol
I can't stand Toms... since they added jwplayer nonsense.
Idk if it's an actual fuse, but it's something that controls power delivery to every component in a chip. When you set it to deliver 0 forever, it becomes an off fuse.
Yeah like the sacrificial device reference typical meaning :cool:
As pointed out, it's pretty much a laser that cuts certain bits of the die to prevent the parts that connects to the rest of the chip from working.
patents.google.com/patent/JPS59130441A/enThat would be an eFuse, which is different.
This isn't a fuse, this is something being severed permanetly.
Fusing off is a little more correct than fused off seeing fused off is a past tense and they have yet to do it.
But ultimately phasing out is best.