Intel Xeon Platinum 9221 's Advantages
Released 7 years and 1 months late
Higher specification of memory (DDR4-2933 vs DDR3)
Larger L3 cache size (71.5MB vs 10MB)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon E5 2609 's Advantages
Higher base frequency (2.4GHz vs 2.1GHz)
Lower TDP (80W vs 250W)