Xeon EC5549 's Advantages
Lower TDP (85W vs 250W)
Intel Xeon W 3345 's Advantages
Released 11 years and 5 months late
Higher specification of memory (3200 vs 1333)
Newer PCIe version (4 vs 2)
Higher base frequency (3GHz vs 2.533GHz)
Larger L3 cache size (36MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)