Xeon X5355 's Advantages
Higher base frequency (2.667GHz vs 2GHz)
Lower TDP (120W vs 250W)
Intel Xeon Gold 6414U 's Advantages
Released 16 years and 2 months late
Higher specification of memory (DDR5-4800 vs DDR3
Depends on motherboard)
More modern manufacturing process (10nm vs 65nm)