Intel Xeon E3 1265L v2 's Advantages
Lower TDP (45W vs 130W)
Intel Xeon E5 1620 v2 's Advantages
Released 1 years and 4 months late
Higher specification of memory (1866 vs 3)
Higher base frequency (3.7GHz vs 2.5GHz)
Larger L3 cache size (10MB vs 8MB)