Intel Xeon E5 2620 v3 's Advantages
Larger L3 cache size (15MB vs 6MB)
Intel Xeon E3 1284L v4 's Advantages
Released 9 months late
Higher specification of memory (1866 vs 1866)
Higher base frequency (2.9GHz vs 2.4GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (47W vs 85W)