Xeon EC5509 's Advantages
Lower TDP (85W vs 95W)
Xeon E 2486 's Advantages
Released 13 years and 10 months late
Higher specification of memory (4800 vs 1066)
Newer PCIe version (5 vs 2)
Higher base frequency (3.5GHz vs 2GHz)
Larger L3 cache size (18MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)