Xeon E 2276M 's Advantages
Released 3 years and 11 months late
Higher specification of memory (DDR4-2666 vs DDR3-1866)
Larger L3 cache size (12MB vs 6MB)
Lower TDP (45W vs 47W)
Intel Xeon E3 1284L v4 's Advantages
Higher base frequency (2.9GHz vs 2.8GHz)