Intel Xeon E5 2403 's Advantages
Lower TDP (80W vs 95W)
Xeon E 2186G 's Advantages
Released 6 years late
Higher specification of memory (2666 vs 3)
Higher base frequency (3.8GHz vs 1.8GHz)
Larger L3 cache size (12MB vs 10MB)
More modern manufacturing process (14nm vs 32nm)