Xeon E7 8867L 's Advantages
Released 1 years and 2 months late
Higher specification of memory (1333 vs 1066)
Higher base frequency (2.133GHz vs 2GHz)
Larger L3 cache size (30MB vs 8MB)
More modern manufacturing process (32nm vs 45nm)
Xeon EC5509 's Advantages
Lower TDP (85W vs 105W)