Intel Xeon Platinum 8558U 's Advantages
Higher base frequency (2.0GHz vs 1.8GHz)
Larger L3 cache size (260MB vs 96MB)
Xeon 6756E 's Advantages
Released 6 months late
Higher specification of memory (6400 vs 4800)
More modern manufacturing process (5nm vs 7nm)
Lower TDP (225W vs 300W)