Xeon Platinum 8280M 's Advantages
Released 7 years and 10 months late
Higher specification of memory (2933 vs 1333)
Newer PCIe version (3 vs 2)
Higher base frequency (2.7GHz vs 2.133GHz)
Larger L3 cache size (38.5MB vs 12MB)
More modern manufacturing process (14nm vs 32nm)
Xeon L5639 's Advantages
Lower TDP (60W vs 205W)