Intel’s old batch of 12th-generation Core processors still support AVX-512 instruction set 

According to the latest report, Intel’s old batch of 12th-generation Core processors still retains AVX-512 instruction set support, but the 2022 batch seems to have disabled this feature. Now, some overclockers have found a trick to tell whether a 12th Gen Core supports AVX-512 or not.

Moreover, if you can get your hands on a 2021 batch of 12th Gen Core processors, you can determine if your CPU supports AVX-512 by looking at the CPU top cover. CPUs marked with a circle will support AVX-512, and CPUs marked with the latest square will have AVX-512 disabled.

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Furthermore, the P core of Intel’s initially released 12th-generation Core Alder Lake desktop processor supports the AVX 512 instruction set, while the E core does not. When turned on, it can improve performance in specific applications.

However, Intel has been urging motherboard manufacturers to remove support for the AVX 512 instruction set from Alder Lake processors through a BIOS update. Currently, most 600 series motherboards have received an update, and official support for AVX512 has been removed.

Some motherboards hide this option. In addition, the latest production generation 12th generation Core processors directly physically disable AVX 512.

The lack of the AVX 512 instruction set does not affect the vast majority of applications, and AVX 512 is mainly used for professional applications. According to previous benchmark tests, running this kind of instruction set will greatly increase the power consumption of the CPU, and it will not be able to run at full load for a long time.

(via)