Impact of Cache Locality

The AMD 2nd Gen EPYC processors, codenamed Rome, have been challenging Intel's dominance in the CPU market with significant improvements over their predecessors. These enhancements include a die shrink from 14nm to 7nm, doubling of top end core count from 32 to 64, and larger L3 cache size. In lab testing, an AMD EPYC 7642-powered server outperformed a Gen 9 Intel Xeon Platinum 6162 server by processing 50% more requests per second due to its large L3 cache and higher sustained operating frequency. However, in production, the AMD EPYC server did not perform as well but still outperformed all previous generations. The AMD EPYC 7642's performance opens up possibilities for upcoming servers to maintain core count while processing more requests per second than their predecessors.