Intel Xeon E3 1284L v4 's Advantages
Released 3 years and 3 months late
Higher specification of memory (DDR3-1866 vs DDR3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (47W vs 135W)
Intel Xeon E5 2690 's Advantages
Larger L3 cache size (20MB vs 6MB)