AMD Epyc Milan-X specification. The new server processors will bring something special

The specification of AMD Epyc Milan-X has just leaked to the network, i.e. new server processors from “red”, which will be designed to maintain the company’s power growing in this segment. What new did we learn about them then?

A more specific specification of the AMD Epyc Milan-X has leaked. In brief? Lower clocks and a huge cache

We get our information from a leak dropped by ExecuFix. This confirms that AMD EPYC Milan-X processors will be powered by Zen 3-based cores and will use 3D V-Cache technology. In addition, it reveals the clock frequencies and the L3 cache sphere of the family, which is to consist of four models.

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The most efficient EPYC Milan-X server processor is to be EPYC 7773X with 64 cores and 128 threads, EPYC 7573X with 32/64 successively, EPYC 7473X with 24/48 and EPYC 7373X 16/32. Their TDP will be 280, 280, 240 and 240 watts, respectively, and the most efficient of them, the flagship of the whole family, will offer a base clock of 2.2 GHz and a boost of 3.5 GHz.

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What is most impressive, however, is the AMD EPYC 7773X cache deck of 768MB, which includes the standard 256MB L3 cache and the remaining 512MB from the newly added SRAM L3 stack. This translates to a 3x increase in cache memory and means that each CCD block will come with 64MB of L3 cache.

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The same cache deck will also have the 32-core EPYC 7573X, which indicates that the processor does not need to have full eight full-fledged CCD blocks to offer such a huge amount of memory. This is confirmed by two weaker models, which promises to be an interesting demonstration of how important cache is for server processors. Unfortunately, it directly affects the clock speed, which is lower in the new processors.

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