Intel Xeon Silver 4116 's Advantages
Released 2 years and 8 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (85W vs 135W)
Intel Xeon E5 2666 v3 's Advantages
Higher specification of memory (DDR4-2133 vs DDR4)
Higher base frequency (2.9GHz vs 2.1GHz)
Larger L3 cache size (25MB vs 16.5MB)