Xeon EC5509 's Advantages
Higher specification of memory (1066 vs 4)
Lower TDP (85W vs 165W)
Xeon Platinum 8276 's Advantages
Released 8 years and 10 months late
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (38.5MB vs 8MB)
More modern manufacturing process (14nm vs 45nm)