Intel Xeon w7 3455 's Advantages
Released 16 years and 3 months late
Higher specification of memory (DDR5-4800 vs DDR3
Depends on motherboard)
More modern manufacturing process (10nm vs 65nm)
Xeon X5355 's Advantages
Higher base frequency (2.667GHz vs 2.5GHz)
Lower TDP (120W vs 270W)