Intel Xeon Platinum 8356H 's Advantages
Higher base frequency (3.9GHz vs 2.2GHz)
Lower TDP (190W vs 205W)
Intel Xeon Gold 6438M 's Advantages
Released 1 years and 9 months late
Higher specification of memory (4800 vs 2933)
Newer PCIe version (5 vs 3)
Larger L3 cache size (60MB vs 35.75MB)
More modern manufacturing process (10nm vs 14nm)