Xeon Platinum 8256 's Advantages
Released 8 years and 10 months late
Higher base frequency (3.8GHz vs 2GHz)
Larger L3 cache size (16.5MB vs 8MB)
More modern manufacturing process (14nm vs 45nm)
Xeon EC5509 's Advantages
Higher specification of memory (1066 vs 4)
Lower TDP (85W vs 105W)