Intel Xeon E5 2403 's Advantages
Larger L3 cache size (10MB vs 8MB)
Intel Xeon E3 1270 v5 's Advantages
Released 3 years and 5 months late
Higher specification of memory (2133 vs 3)
Higher base frequency (3.6GHz vs 1.8GHz)
More modern manufacturing process (14nm vs 32nm)