AMD Zen 4 processors get twice as much L2 cache
Hardware

AMD Zen 4 processors get twice as much L2 cache as their predecessors

A recent leak from Geekbench’s synthetic test database suggests AMD’s Zen 4 server processors will get 1MB of L2 cache per core. This is confirmed by testing an engineering sample of one of the EPYC Genoa series processors. Since AMD Ryzen desktop processors consist of the same chiplets as EPYC server chips, the dual L2 cache is likely to apply to Zen 4 Ryzen 7000 models as well.

    Image source: VideoCardz

Image source: VideoCardz

The above Genoa series chip with OPN number 100-000000479-13 has 32 physical cores on board with support for 64 virtual threads and operates at a base frequency of 1.2 GHz. If you consider that this is a very early engineering sample, you can assume that the market version of the processor will have a significantly higher frequency.

According to Geekbench, the tested chip has one megabyte of L2 cache per core, which is twice as much as EPYC processors from the Naples, Rome and Milan series. At the same time, the size of the L3 cache in the new chip has not changed compared to the same series of Milan processors and is 32 MB per chiplet (CCX block with eight cores). However, since the processors of the Genoa series can offer up to 96 physical cores, the total amount of L3 cache will definitely be higher than their predecessors. The only exception is the fresh EPYC Milan-X chips with 3D V-Cache technology, which triples the amount of cache memory.

It is worth remembering that the processors EPYC 7004 (Genoa) are made according to the 5nm process technology. They will be AMD’s first server processors to support both DDR5 RAM and PCIe 5.0. According to AMD, these chips should be available later this year. The company’s partners are already receiving samples to test.

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About the author

Dylan Harris

Dylan Harris is fascinated by tests and reviews of computer hardware.

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