Intel Xeon W3690 's Advantages
Higher base frequency (3.466GHz vs 2GHz)
Lower TDP (130W vs 200W)
AMD EPYC 7702 's Advantages
Released 8 years and 6 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (256MB vs 12MB)