Intel Xeon Platinum 9221 's Advantages
Released 6 years and 11 months late
Higher specification of memory (2933 vs 3)
Higher base frequency (2.1GHz vs 1.8GHz)
Larger L3 cache size (71.5MB vs 10MB)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon E5 2403 's Advantages
Lower TDP (80W vs 250W)