Of the processors for servers and other data centers that will also benefit from 3D Vertical Cache.
Already mentioned at the end of last year, the new processors in the EPYC range from AMD will be entitled to 3D Vertical Cache “processing” in order to boost the amount of cache memory on board the chips.
Up to 96 cores for 192 threads
However, this 3D Vertical Cache revolution will not concern all future EPYC processors and, as with the Ryzen, AMD reserves its technology for a specific version.
Codenamed Genoa, the new EPYCs have already been mentioned several times. They will be an opportunity to integrate – for the first time on processors intended for servers – the Zen4 architecture that we are starting to know well, to offer TSMC’s 5 nm engraving and to add a very large number of cores to make explode the current limits.
According to the latest news, the most muscular models should thus have up to 96 cores for 192 threads. This will notably be the case on the EPYC 9654, EPYC 9654P and EPYC 9664.
1248 MB combined L2+L3 cache
However, the most recent information obtained by WCCFTech does not focus on these models, but on the versions integrating the 3D Vertical Cache (Genoa-X), for a stacking of the cache allowing a clear increase in on-board capacity.
We are talking about four references from the EPYC 9184X to the EPYC 9684X via the 9284X and 9384X. The new data from our colleague essentially concerns the heaviest of the range which, with its 96 cores/192 threads and its total of 1.25 GB of combined cache, seems to be a real monster.
A gargantuan cache that breaks down as follows: 384 MB of L3 cache linked to CCDs, 768 MB of L3 consecutive to the use of 3D V-Cache and, finally, 96 MB of L2 cache for an exact total of 1,248 MB Note that there is also a question of 3 MB of L1 cache and that in total, the chip benefits from 2.6x more cache than the classic Genoa models.
An increase in cache that seems to have only a very small impact on operating frequencies. At worst, it would thus be a question of losing 100 MHz (3.7 against 3.8 GHz) between the 9684X and the 9664. Finally, we are talking about a TDP of maximum 400 Watts and an output during the summer 2023.
Source : WCCFTech
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