Xeon W 1390P 's Advantages
Released 6 years and 8 months late
Higher specification of memory (3200 vs 2133)
Newer PCIe version (4 vs 3)
Higher base frequency (3.5GHz vs 1.8GHz)
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E5 2648L v3 's Advantages
Larger L3 cache size (30MB vs 16MB)
Lower TDP (75W vs 125W)