Intel Xeon E5 2403 's Advantages
Lower TDP (80W vs 125W)
Xeon W 1390P 's Advantages
Released 9 years late
Higher specification of memory (3200 vs 3)
Higher base frequency (3.5GHz vs 1.8GHz)
Larger L3 cache size (16MB vs 10MB)
More modern manufacturing process (14nm vs 32nm)