Intel Xeon E5 1428L 's Advantages
Higher base frequency (1.8GHz vs 1.6GHz)
Lower TDP (60W vs 85W)
Intel Xeon E5 2603 v3 's Advantages
Released 2 years and 4 months late
Higher specification of memory (DDR4-1600 vs DDR3)
More modern manufacturing process (22nm vs 32nm)