Intel Xeon W3690 's Advantages
Higher base frequency (3.466GHz vs 2.1GHz)
Intel Xeon E5 4660 v3 's Advantages
Released 4 years and 4 months late
Higher specification of memory (DDR4-2133 vs DDR3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (35MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (120W vs 130W)