Intel Xeon E5 1603 v3 's Advantages
Larger L3 cache size (10MB vs 8.25MB)
Intel Xeon W 2104 's Advantages
Released 2 years and 11 months late
Higher specification of memory (2666 vs 1866)
Higher base frequency (3.2GHz vs 2.8GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (120W vs 140W)