Intel confirms all Skylake-X CPUs have full AVX-512 support

Posted on Thursday, February 15 2018 @ 13:17 CET by Thomas De Maesschalck

An interesting tidbit about Intel's Skylake-X processors. The chip giant originally said there is a difference in the number of AVX-512 FMA units between the Core i7 X-series and the Core i9 X-series. Basically, the 7800X and 7820X would have one unit per core, whereas the 7900X would feature two.

However, a new specification sheet from Intel reveals all three chips are equally AVX-512 capable.

[O]fficial documentation pointed out by CPU detective InstLatX64 on Twitter today confirms that Skylake-X Core i7s and Core i9s are actually equally capable in that regard. Intel's own product comparison page, when loaded up with the Skylake-X family, shows that every chip of the brood is specced with two AVX-512 FMA units—a figure the company confirmed is correct.

The Tech Report reached out to Intel and got to hear that the spec sheet is indeed accurate. AVX-512 is a new instruction set and it's mainly aimed at high performance computing (HPC) tasks, at the moment there's not really any desktop support.

About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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