Intel Xeon E5649 's Advantages
Higher base frequency (2.533GHz vs 2.1GHz)
Lower TDP (80W vs 85W)
Intel Xeon Silver 4116 's Advantages
Released 6 years and 5 months late
Higher specification of memory (DDR4 vs DDR3)
Larger L3 cache size (16.5MB vs 12MB)
More modern manufacturing process (14nm vs 32nm)