Intel Xeon E3 1284L v4 's Advantages
Released 9 months late
Higher base frequency (2.9GHz vs 2.2GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (47W vs 105W)
Intel Xeon E5 2658 v3 's Advantages
Higher specification of memory (2133 vs 1866)
Larger L3 cache size (30MB vs 6MB)