Intel Xeon Phi 7285 's Advantages
Released 2 years and 6 months late
More modern manufacturing process (14nm vs 22nm)
Intel Xeon E5 4640 v3 's Advantages
Higher specification of memory (DDR4-1866 vs DDR4)
Higher base frequency (1.9GHz vs 1.3GHz)
Lower TDP (105W vs 250W)