how good are Milan X processors with 3D V-Cache?
The website Fries and Cheese has just published the first results of a Milan X processor equipped with 3D V-Cache. Does the performance improvement live up to expectations?
A slight increase in performance thanks to the 3D V-Cache.
Last November, AMD announced its new Milan X processors, equipped with 3D V-Cache technology, thus having a maximum of 768 MB of L3 instead of the current 256. This amount of cache should thus provide superior performance in certain specific applications with up to 50% announced by the brand.
At the same time, technology has also been teased for the general public with the Ryzen 7 5800X3D which must offer on average 15% higher performance in game compared to the Ryzen 9 5900X.
Very nice figures in perspective, but what is it in reality? This is what the site, Fries and Cheese wanted to know, by testing an Epyc 7V73X processor from the Milan-X range using 3D V-Cache, with 64 cores and 768 MB of L3.
Latency was undoubtedly one of the most awaited data concerning this new technology, with results that are there.
Adding its extra 512MB of L3 cache only added 3-4 cycles to latency (in comparison, moving from Zen 2 to Zen 3 with a doubling of L3 had produced an extra 7-8 cycles) . This translates to an increase in ns of 17% compared to an Epyc 7763.
In terms of performance, notable gains are to be presented compared to the already very efficient 7763, with an average improvement of 9% in performance at equal frequencies on the applications tested today.
We are far from the performance announced by AMD on the day of the presentation, but it should be remembered that some applications may be more sensitive than others and that the results may vary very greatly.
Of course, to give you a complete opinion, we ask you to read the article available on the site of the author of the test.