Intel Xeon E5607 's Advantages
Higher base frequency (2.266GHz vs 2.0GHz)
Lower TDP (80W vs 300W)
Intel Xeon Platinum 8558U 's Advantages
Released 12 years and 10 months late
Higher specification of memory (DDR5-4800 vs DDR3)
Newer PCIe version (5 vs 2)
Larger L3 cache size (260MB vs 8MB)
More modern manufacturing process (7nm vs 32nm)