Xeon E5335 's Advantages
Lower TDP (80W vs 250W)
Intel Xeon Gold 6542Y 's Advantages
Released 17 years and 1 months late
Higher specification of memory (DDR5-5200 vs DDR3
Depends on motherboard)
Higher base frequency (2.9GHz vs 2GHz)
More modern manufacturing process (10nm vs 65nm)