Intel Xeon Phi 7210F 's Advantages
Released 5 years and 2 months late
Higher specification of memory (DDR4 vs DDR3)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon E3 1220L 's Advantages
Higher base frequency (2.2GHz vs 1.3GHz)
Lower TDP (20W vs 230W)