Intel Xeon E3 1280 v2 's Advantages
Higher base frequency (3.6GHz vs 1.4GHz)
Lower TDP (69W vs 230W)
Intel Xeon Phi 7250F 's Advantages
Released 4 years and 1 months late
Higher specification of memory (DDR4 vs DDR3)
More modern manufacturing process (14nm vs 22nm)