Intel Xeon Platinum 8558U 's Advantages
Released 14 years and 3 months late
Higher specification of memory (4800 vs 1333)
Newer PCIe version (5 vs 2)
Larger L3 cache size (260MB vs 8MB)
More modern manufacturing process (7nm vs 45nm)
Xeon X3440 's Advantages
Higher base frequency (2.533GHz vs 2.0GHz)
Lower TDP (95W vs 300W)