Xeon Platinum 8280 's Advantages
Released 7 years and 10 months late
Higher specification of memory (4 vs 3)
Higher base frequency (2.7GHz vs 2.533GHz)
Larger L3 cache size (38.5MB vs 12MB)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon E5649 's Advantages
Lower TDP (80W vs 205W)