Intel Xeon W3690 's Advantages
Higher base frequency (3.466GHz vs 3.1GHz)
Lower TDP (130W vs 270W)
Intel Xeon w5 3435X 's Advantages
Released 12 years late
Higher specification of memory (4800 vs 3)
Newer PCIe version (5 vs 2)
Larger L3 cache size (45MB vs 12MB)
More modern manufacturing process (10nm vs 32nm)