Intel Xeon E5 4603 's Advantages
Lower TDP (95W vs 120W)
Intel Xeon E5 2676 v3 's Advantages
Released 3 years and 1 months late
Higher specification of memory (2133 vs 3)
Higher base frequency (2.4GHz vs 2GHz)
Larger L3 cache size (30MB vs 10MB)
More modern manufacturing process (22nm vs 32nm)