Intel Xeon E5507 's Advantages
Lower TDP (80W vs 250W)
Intel Xeon Gold 6542Y 's Advantages
Released 13 years and 9 months late
Higher specification of memory (DDR5-5200 vs DDR3)
Newer PCIe version (5 vs 2)
Higher base frequency (2.9GHz vs 2.266GHz)
Larger L3 cache size (60MB vs 4MB)
More modern manufacturing process (10nm vs 45nm)