Xeon E 2276M 's Advantages
Released 5 years and 11 months late
Higher specification of memory (2666 vs 4)
Larger L3 cache size (12MB vs 8MB)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 82W)
Intel Xeon E3 1280 v3 's Advantages
Higher base frequency (3.6GHz vs 2.8GHz)