Xeon W 1390 's Advantages
Released 5 years and 4 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (16MB vs 8MB)
Intel Xeon E3 1575M v5 's Advantages
Higher base frequency (3GHz vs 2.8GHz)
Lower TDP (45W vs 80W)