Eh, c6a is also an AMD Rome which has worse memory bandwidth at the tails and weaker per thread performance than Cascadelake (c5). I don't understand anything a

Eh, c6a is also an AMD Rome which has worse memory bandwidth at the tails and weaker per thread performance than Cascadelake (c5). I don't understand anything about this particular benchmark, but I wouldn't compare them simply as "older vs newer".