AMD EPYC Embedded 3351 's Advantages
Released 7 years and 11 months late
Higher specification of memory (DDR4-2666 vs DDR3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (32MB vs 12MB)
Intel Xeon E5640 's Advantages
Higher base frequency (2.666GHz vs 1.9GHz)